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146 Cards in this Set
- Front
- Back
The study of structure
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Anatomy
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The study of function
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Physiology
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looking at the body's appearance or making a clinical diagnosis from surface appearance
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inspection
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feeling a structure with the hands, ie palpating a swollen lumph node or taking a pulse
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palpation
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listening to the natural sounds made by the body, such as heart and lung sounds
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auscultation
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when an examiner taps the body, feels for abnormal resistance and listens to the emitted sound for signs of abnormalities such as pockets of fluid or air.
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percussion
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the careful cutting and separation of tissues to reveal their relationships
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dissection
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the study of cells under the microscope
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histology
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the microscopic examination of tissues for signs of disease
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histopathology
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the study of the structure and function of individual cells
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cytology
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the process of making numerous observations until one feels confident in drawing generalizations and predictions for them
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inductive method
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if we claim something is scientifically true we must be able to specify what evidence it would take to prove it wrong. If nothing could prove it wrong, it is not scientific
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falsifiability
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the ability to encircle and grasp objects using an opposable thumb
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prehensile
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what does stereoscopic vision allow for?
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depth perception
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the term for standing and walking on two legs
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bipedalism
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a structure composed of two or more tissue types that work together to carry out a particular function
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organ
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a mass of similar cells and cell products that forms a discrete region of an organ and performs a specific function
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tissue
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what are the four classes of tissue
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epithelial, connective, nervous and muscular
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the smallest units of an organism that carry out all of the basic functions of life
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cells; nothing simpler than a cell is considered alive
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microscopic structures in a cell that carry out its individual functions
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organelles, ie mitochondria, centrioles, lysosomes
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particle composed of at least two atoms (the smallest particles with unique chemical identities)
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molecule
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the theory that a large, complex system such as the human body can be understood by studying its simpler components; first espoused by Aristotle
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reductionism
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the theory that there are emergent properties of the whole organism that cannot be predicted from the properties of its separate parts.
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holism
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the normal arrangement of internal organs
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situs solitus
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the organs of the thoracic and abdominal cavities are reverse between right and left; occurs in 1 in 8000 people
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situs inversus
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when a single organ occupies an atypical position
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situs perversus
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the sum of all this internal chemical change of taking in molecules from the environment and converting to energy.
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metabolism
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when complex molecules are synthesized from simpler molecules, store energy/endergonic reaction; ie protein synthesis
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anabolism
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when complex molecules are broken down into simpler molecules, release energy/exergonic, ie protein digestion
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catabolism
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the separation of wastes from the tissues and their elimination from the body
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excretion
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the ability to maintain internal stability; the body's ability to detect change, activate mechanisms that oppose it and thereby maintain stable internal conditions
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homeostasis
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Frenchman who discovered concept of homeostasis
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Claude Bernard
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American who coined term homeostasis
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Walter Cannon
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the transformation of cells with no specialized function into cells that are committed to a particular task
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differentiation
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an increase in size; part of development
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growth
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the characteristics of a reference male
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22 yrs old; weighing 70 kg; living at a mean ambient temperature of 20 C; engaging in light physical activity; consuming 2800 kcal/day
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the characteristics of a reference female
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22 yrs old; weighing 58 kg; living at a mean ambient temperature of 20 C; engaging in light physical activity; consuming 2000 kcal/day
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internal state of the body in which there is a certain set point or average value for a given variable and conditions fluctuate around this point
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dynamic equilibrium
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a process in which the body senses a change and activates mechanisms that negate or reverse it.
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negative feedback
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the widening of blood vessels; allows warm blood to flow closer to the body surface and loses heat to the surrounding air
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vasodilation
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narrowing of the blood vessels in the skin; retains warm blood deeper in body and reduces heat loss
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vasoconstriction
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sensory nerve endings (large arteries near heart)
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baroreceptors
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the reflexive correction of blood pressure
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baroreflex
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self amplifying cycle in which a physiological change leads to even greater change in the same direction, rather than producing the corrective effects of negative feedback.
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positive feedback
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terms coined from the names of people
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eponyms, ie fallopian tubes
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singular ending: -a, ie axilla
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plural ending: -ae, ie axillae
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singular ending: -ax, ie thorax
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plural ending: -aces, ie thoraces
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singular ending: -en, ie lumen
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plural ending: -ina, ie lumina
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singular ending: -ex, ie cortex
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plural ending: -ices, ie cortices
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singular ending: -is, ie diagnosis
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plural ending: -es, ie diagnoses
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singular ending: -is, ie epididymis
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plural ending: -ides, ie epididymides
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singular ending: -ix, ie appendix
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plural ending: -ices, ie appendices
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singular ending: -ma, ie carcinoma
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plural ending: -mata, ie carcinomata
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singular ending: -on, ie ganglion
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plural ending: -a, ie ganglia
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singular ending: -um, ie septum
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plural ending: -a, ie septa
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singular ending: -us, ie viscus
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plural ending: -era, ie viscera
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singular ending: -us, ie villus
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plural ending: -i, ie villi
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singular ending: -us, ie corpus
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plural ending: -ora, ie corpora
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singular ending: -x, ie phalanx
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plural ending: -ges, ie phalanges
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singular ending: -y, ovary
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plural ending: -ies, ie ovaries
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singular ending: -yx, ie calyx
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plural ending: -yces, ie calyces
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the stance in which a person stands erect with the feet flat on the floor and close together, arms at sides, and the palm and face directed forward
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anatomical position
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the position of the forearm in the anatomical position
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supinated, so the palm faces anteriorly; (supine also refers to the the body lying face up)
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the position of the forearm when the palm faces posteriorly
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pronated; (prone also refers to the the body lying face down)
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the 3 anatomical planes
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sagittal (median or midsagittal), frontal (coronal), transverse (horizontal)
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the plane that passes vertically through the body or an organ and divides it into right and left portions
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sagittal plane
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the plane that extends vertically but is perpendicular to the sagittal plane and divides the body into anterior and posterior portions
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frontal or coronal plane
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the plane that passes across the body or an organ perpendicular to its long axis; it divides the body or organ into superior (upper) and inferior (lower) portions
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transverse or horizontal plane
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the dorsal surface of a structure
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dorsum
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the region of the body that leads the way in normal locomotion
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anterior
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the region of the body that comes last in normal locomotion
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posterior
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toward the front (humans) or belly
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ventral
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toward the back or spine
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dorsal
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toward the ventral side (humans)
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anterior
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toward the dorsal side (humans)
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posterior
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toward the head or superior end
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cephalic
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toward the forehead or nose
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rostral
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toward the tail or inferior end
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caudal
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above
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superior
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below
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below
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toward the median plane
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medial
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away from the median plane
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lateral
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closer to the point of attachment or origin
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proximal
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farther from the point of attachment or origin
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distal
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closer to the body surface
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superficial
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farther from the body surface
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deep
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the region consisting of the head, neck (cervical region) and trunk
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axial region
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the two regions within the axial (trunk) region
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the thoracic region (above the diaphragm) and the abdominal region (below the diaphragm)
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the lines that dissect the abdomen
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midclavicular line
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superior horizontal line of the abdomen
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subcoastal line, connects the inferior borders of the lowest costal cartilages (cartilage connecting the tenth rib on each side to the inferior end of the sternum)
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the inferior horizontal line of the abdomen
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intertubular line because it passes from left to right between the tubercles (anterior superior spines) of the pelvis
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the 3 lateral regions of the abdomen (from upper to lower)
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hypochondriac, lumbar, and inguinal (iliac) regions
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the 3 medial regions (from upper to lower)
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epigastric, umbilical and hypogastric (pubic) regions
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the appendicular region consists of:
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the upper and lower limbs
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arm (between shoulder and elbow)
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brachial region
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forearm
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antebrachial region
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wrist
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carpal region
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hand
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manual region
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fingers
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digits
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thigh
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femoral region
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leg (between knee and ankle)
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crural region
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ankle
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tarsal region
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foot
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pedal region
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toes
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digits
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longitudinal portions of a limb between major joints
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segments
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internal organs contained within body cavities
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viscus (singular); viscera (plural)
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associated viscera and membranous lining of the cranial cavity
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brain; meninges
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associated viscera and membranous lining of the vertebral canal
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spinal cord; meninges
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associated viscera and membranous lining of the thoracic cavity
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in the pleural cavities - lungs; pleurae
in the pericardial cavity - heart; pericardium |
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associated viscera and membranous lining of the abdominopelvic cavity
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abdominal cavity - digestive organs, spleen, kidneys; peritoneum
pelvic cavity - bladder, rectum, reproductive organs; peritoneum |
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what 2 cavities are continuous with each other
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cranial cavity and vertebral canal
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during embryonic development a space called ? forms within the trunk. it becomes partitioned by a muscular sheet, the diaphragm
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coelom
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what is the thick wall that divides the thoracic cavity (between the lungs, extending from the base of the neck to the diaphragm)
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mediastinum
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the inner layer of the pericardium
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visceral pericardium
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the outer layer of the pericardium
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parietal pericardium
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the cavity separating the visceral and parietal pericardium? filled with?
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pericardial cavity; pericardial fluid
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what separates the abdominal cavity and the pelvic cavity?
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the brim of the pelvis (a bony landmark)
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in what direction does the pelvic cavity tilt?
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posteriorly
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what organs does the pelvic cavity contain?
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rectum, urinary bladder, urethra, reproductive organs
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what is the position of the organs that lie against the posterior of the body and are covered by peritoneum only on the side facing the peritoneal cavity?
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retroperitoneal position
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what organs have a retroperitoneal position in the abdominal cavity?>
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kidneys, ureters, adrenal glands, most of the pancreas, and the abdominal portions of the aorta and inferior vena cava
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organs that are encircled by peritoneum and connected to the posterior body wall by peritoneal sheets are described as?
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intraperitoneal
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the intestines are suspended from the posterior abdominal wall by a translucent membrane called?
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the dorsal mesentery, which is an infolding of the peritoneum
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the dorsal mesentery of the large intestine is called?
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the mesocolon
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what is the greater omentum
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a fatty membrane that hangs like an apron from the inferolateral margin of the stomach and overlies the intestines (part of mesentery?)
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what is the lesser omentum?
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membrane that extends from the superomedial border of the stomach to the liver
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what are potential spaces between body membranes?
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under normal conditions, membranes are pressed together and no space exists; however membranes that are not attached can separate and create a space filled with fluid or other matter.
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how many organ systems does the human body have?
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11
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what are the organ systems that provide protection, support and movement
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integumentary system, skeletal system, muscular system
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what are the organ systems that provide internal communication and integration
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nervous system and endocrine system
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what are the organ systems that provide fluid transport
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circulatory system and lymphatic system
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what are the organ systems that provide defense
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immune system
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what are the organ systems that provide input and output
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respiratory system, urinary system, digestive system
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what are the organ systems that provide reproduction
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reproductive system
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what are the principal organs in the integumentary system
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skin, hair, nails, cutaneous glands
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what is the principal function of the integumentary system?
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protection, water retention, thermoregulation, vitamin D synthesis, cutaneous sensation, nonverbal communication
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what are the principal organs in the skeletal system
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bones, cartilages, ligaments
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what are the principal functions of the skeletal system
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support, movement, protective enclosure of viscera, blood formation, electrolyte and acid-base balance
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what are the principal organs in the muscular system
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skeletal muscles
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what are the principal functions of the muscular system
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movement, stability, communication, control of body openings, heat production
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what are the principal organs in the respiratory system
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nose, pharynx, larynx, trachea, bronchi, lungs
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what are the principal functions of the respiratory system
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absorption of oxygen, discharge of carbon dioxide, acid-base balance, speech
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what are the principal organs of the lymphatic system
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lymph nodes, lymphatic vessels, thymus, spleen, tonsils
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what are the principal functions of the lymphatic system
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recovery of excess tissue fluid, detection of pathogens, production of immune cells, defense against disease
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what are the principal organs of the urinary system
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kidneys, ureters, urinary bladder, urethra
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what are the principal functions of the urinary system
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elimination of wastes, regulation of blood volume and pressure, stimulation of red blood cell formation; control of fluid, electrolyte, and acid-base balance, detoxification
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