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120 Cards in this Set

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Circulatory system


(detailed)

The circulatory system also called the cardiovascular system consists of the heart blood vessels (arteries veins and arterioles) in blood. It supports the circulation and distribution of various substances throughout the body. Oxygen, hormones, and nutritions from foods are some of these substances.

Transportation highway. Heart, veins, arteries, and capillaries.

Digestive system


(detailed)

The digestive system consists of all the organs from the mouth to the anus involving the indigestion and breakdown or processing of food. The organs along this path include the esophagus, stomach, small intestine, and large intestines, rectum and anus. The digestive system manufacturers enzymes that break down food so that the nutrients can be easily passed into the blood for the use throughout the body. Any food that is not digested is expelled through the anus. The absortion of nutrients actually occurs in the small intestine, which consists of the duodenum, jejunum, and ileum. After that, the colon removes water from the waste that remains. To other organs included in the digestive system are the liver and pancreas. The liver produces bile that helps break down fat, and the pancreas delivers enzymes to the small intestine that aid in digestion.

Where food is broken down

Endocrine system


(detailed)

The endocrine system serves to controls body functions. Glands in the endocrine system secrete hormones that travel through the blood to organs throughout the body. Glands such as the pineal, pituitary, thalamus, hypothalamus, thyroid, thymus, and adrenal regulate processes such as growth and metabolism. The pancreas, testis, and ovaries also have endocrine functions, even though they are part of the other body system.

Controls hormones

Integumentary system


(detailed)

The integumentary system consists of the skin, mucus membranes, hair, and nails. It protects internal tissues from injury, waterproofs the body, and helps regulate body temperature. This system also serves as a barrier to pathogens (microorganisms capable of producing diseases).

Lymphatic system


(detailed)

The lymphatic system consists of lymph nodes, lymph vessels that carry lymph (a clear fluid rich and antibodies), the spleen, the thymus, and the tonsils, which are made up of lymphoid tissue. It supports the immune system by housing and transporting white blood cells to and from lymph nodes. The lymphatic system also returns fluid that has leaked from the cardiovascular system back into the blood vessels.

Muscular system


(detailed)

The muscular system consists of skeletal muscles, tendons that connect muscles to bones, and ligaments that attach bones together to form joints. The cardiac and smooth muscles are not included in the organ system.

Nervous system


(detailed)

The nervous system consists of the brain, spinal cord, and nerves, and it serves as the body's control system. Sensory receptors detect stimuli that can occur both inside and outside the body. The conduction of nerve impulses along nerves is extremely fast, making it possible for immediate reflexive responses to protect the body from threats. Once a threat is detected, the nervous system activates and appropriate muscles or glands to respond.

Reproductive system


(detailed)

The main purpose of the reproductive system is to produce offspring. This system consist of the testes, penis, ovaries, vagina, and breasts. The reproductive system is specialized in men to produce sperm and in women to produce eggs (or ova). The reproductive organs also house hormones that encourage or suppress activities within the body (example libido and aggression) and influence the development of masculine or feminine body characteristics.

Respiratory system


(detailed)

The respiratory system keeps the body's cells supplied with oxygen and removes carbon dioxide as it is released from the cells. It consists of the nasal cavity, pharynx, larynx, trachea, Bronchi, and lungs. The lungs house tiny air sacs called alveoli. It is throught the walls of the alveoli that oxygen and carbon dioxide move in and out of the lungs via small blood vessels called arterioles.

Skeletal system


(detailed)

The skeleton system provide support and protection for the body and its organs and supplies a framework that, when used in conjunction with the muscles, it creates movement. It consists of bones, cartilage, ligaments, and joints. The skeletal system also serves as storage for minerals such as calcium and phosphorus.

Urinary system


(detailed)

The urinary or excretory system helps maintain the water and electrolyte (sodium, chloride, and potassium are electrolytes) balance within the body, regulates the acid-base balance of the blood, and removes all nitrogen contained waste from the body. The nitrogen-containing wastes are byproducts of the breakdown of the proteins and nucleic acids.

Anatomy
Study of the structure of organs and body systems
Physiology
The study of the function of the organs and body systems
Atoms
The smallest part of elements that still retain all the original properties of the element, combine to for a molecule
Molecule
A chemical bonding of atoms that possesses its own characteristics independent of the atoms themselves
Cells
The basic unit of all life
Tissues
Cells combine in terms of function and type (which forms into a tissue)
Organ
Two or more tissue types work together to preform a specific function.
Organ system
When organs work together to preform a task
Organism
The highest level of organization

(the result of all organ systems working together within the body)

What is the order of the structure of the human body from smallest to largest
1. Atoms

2. Molecules


3. Cells


4. Tissues


5. Organs


6. Organ Systems


7. Organism

What are the 4 basic tissue types in a human body?
Epithelial tissue

Connective tissue


Muscle tissue


Nervous tisue

Epithelial Tissue
Epithelium serves two functions. It can provide covering (such as skin tissue) or produce secretions (such as glandular tissue). Epithelial tissue commonly exists in sheets and does not have its own blood supply. Subsequently, epithelium is dependent on diffusion from the nearby capillaries for food and oxygen.Epithelial tissue can regenerate easily if well nourished. Epithelial tissues are classified according to two criteria: number of cell layers and cell shape. Simple and stratified epithelial tissues vary in relation to the number of cell layers. Simple epithelium contains one layer of cells. It is found in body structures where absorption, secretion, and filtration occur. Stratified epithelium has more that one layer of cells and serves as protection. The shape of epithelial cells includes squamous, cuboidal, and columnar.
Connective Tissue
Connective tissue is found throughout the body; it serves to connect different structures of the body. Connective tissue commonly has its own blood supply; however, there are some types of connective tissue, such as ligaments, that do not. The various types of connective tissue include bone, cartilage, adipose (fat), and blood vessel.
Muscle Tissue
Muscle tissue is dedicated to producing movement. There are three types of muscle tissue: skeletal, cardiac, and smooth. Skeletal muscle supports voluntary movement since it is connected to bones in the skeletal system. Voluntary movements are consciously controlled by the brain. Smooth muscle is under involuntary control. Which means it cannot be consciously controlled. It is found in the walls of hollow organs, such as intestines, blood vessels, bladder, and uterus. Like smooth muscle, cardiac muscle movement is involuntary. Cardiac muscle is found only in the heart.
Nervous tissue
Nervous tissue provides the structure for the brain, spinal cord, and nerves. Nerves are made up of specialized cells called neurons that send electrical impulses throughout the body. Support cells, such as myelin, help protect nervous tissue.
Anatomical position
A standard position in which the body is facing forward, the feet are parallel to each other, and the arms are at the sides with the palms facing forward.
Superior
Toward the upper end of the body or body structure
Inferior
Toward the lower end of the body or body structure
(opposite of Superior)
Anterior
Toward the front of the body or body structure
Posterior
Toward the back of the body or body structure
(opposite of anterior)
Medial
Toward the middle of the body or body structure
Lateral
Toward the outer sides of the body or body structure
(opposite of medial)
Intermediate
Between medial and lateral
Proximal
close to the origin of the body part or point of attachment
Distal
away from the origin of the body part or point of attachement
(opposite of proximal)
Superficial
toward or at the body surface
Deep
away from or below the body surface
(the opposite of superficial)
Sagittal Section
cut made along a longitudinal plane dividing the body into right and left parts
Midsagittal Section
Sagittal section made down the median of the body
Transverse section
cut made along a horizontal plane to divide the body into upper and lower regions
(cross section)
Frontal section
cut made along a longitudinal plan that divides the body into front and back regions
(coronal section)
Dorsal body cavity
contains the cranial cavity and spinal column
Ventral body cavity
contains all the structures within the chest and abdomen; diaphragm dives the ventral cavity into the thoracic cavity (superior to the diaphragm); below the diaphragm are the abdominal and pelvic cavities
Homeostasis
When all the needs of the body are met and all of the organ systems are working properly; the body is in a stable state
Connective tissue can be found in the ...
Bone
Epithelial tissue can be found in the ...
Skin
Muscle tissue can be found in the ...
Heart
Nervous tissue can be found in the ...
Brain
Circulatory system
This system works as the transportation system for substances such as oxygen, carbon dioxide, and nutrients in the body.
Digestive system
This system breaks down food so that the nutrients can be easily passed into the blood and circulated throughout the body
Endocrine system
This system controls body functions
Integumentary system
This system protects internal tissues from injury, waterproofs the body, and helps regulate body temperature. This system also serves as a barrier to foreign substances
Lymphatic system
This system helps cleanse the blood and house the white blood cells that are involved in protecting the body from environment pathogens.
Muscular system
This system produces movement through contractions
Nervous system
This system acts as the body's control system and is necessary to protect the body from changes in the internal and external environment.
Reproductive system
This system produces offspring
Skeletal system
This system provides support and protection for the body, supplies a framework used to create movement, and serves as storage for minerals, such as calcium
Urinary system
This system helps maintain the water and electrolyte balance with in the body, regulates the acid-base balance in the blood, and removes all nitrogen-containing wastes from the body
Heart
An organ that contracts an pumps blood throughout the body
Circulatory system
Arteries
are blood vessels that transport blood away from the heart to the capillaries.
Circulatory system
Capillaries
Are tiny blood vessels that transport blood from arteries to veins within the body. Also serve as the location for the exchange of oxygen, carbon dioxide, fluid, and nutrients with in the body.
Circulatory system
How does the heart work?
Oxygenated blood enters into the heart through the superior and inferior vena cava. The blood travels into the right atrium and, during contraction of the atrium, flows through the tricuspid valve into the right ventricle. The blood is pushed through the pulmonary valve into the pulmonary artery and lungs when the right ventrical contracts. Here, it picks up oxygen. The oxygenated blood is then carried back to the heart (by the pulmonary veins), into the left atrium, through the mitral valve, and into the left ventricle. Contraction of the left ventricle forces the blood through the aortic valve, through the aorta, and out to the entire body.
Circulatory system
Heart consists of four chambers:
the right and left atriums and the right and left ventricles. It also has four valves that prevent the flow of blood back into the heart's chambers after a contraction. The valves include the tricuspid and pulmonary on the right side of the heart and the mitral and aortic on the left side of the heart.
Circulatory system
Lungs
Breathing in oxygen and exhaling carbon dioxide
Respiratory system
Trachea
airway that connects the larynx to the bronchial tubes; also known as the windpipe
Respiratory system
Bronchial tubes
Small respiratory passages that connect the trachea to the lungs
Respiratory system
Cilia
tiny hairs in the bronchial tubes that keep the airway clear by removing unwanted matter from the lungs
(hair) Respiratory system
Alveoli
Structure in the lungs that permits the exchange of oxygen and carbon dioxide to occur
Respiratory system
Diaphram
Dome-shaped muscle located immediately below the lungs that stimulates inhalation and exhalation by contracting and relaxing
Respiratory system
Inspiration
Act of breathing in oxygenated air

(the diaphragm is contracted)

Respiratory system
Expiration
Act of exhaling carbon dioxide from the body

(the diaphragm is relaxed)

Respiratory system
Peristalsis
rhythmic contractions of the stomach and intestines that propel food toward the colon and anus
digestive system
Digestion
mechanical and chemical breakdown of fooods
digestive system
Enzymes
protein catalyst; chemical that changes the rate of a chemical reaction in living tissue without it self being chemically altered; a chemical that breaks down proteins, carbohydrates, and fasts into nutrients that can be absorbed through the wall of the intestine into the bloodstream
digestive system
pyloric sphincter
muscle that separates the stomach from the duodenum and slowly releases chyme from the stomach into the small intestine (duodenum)
digestive system
chyme
mixture of food, chemicals, and enzymes in the stomach
digestive system
duodenum
first section of the small intestine
digestive system
villi
finger-like projections in the mucosa of the small intestine lining; produce a pleated appearance; each villus is supplied with blood and has lymphatic vessels for absorption
digestive system
microvilli
microscopic projections of tissues that make up the villi
digestive system
Central nervous system
branch of the nervous system that includes the brain and spinal cord
Nervous system
Peripheral nervous system
branch of the nervous system that extends outside of the central nervous system and consists of the cranial and spinal nerves
Nervous system
Autonomic nervous system
branch of the peripheral nervous system that controls automatic body functions like heartbeat and digestion
Nervous system
Sympathetic nerves
branch of the autonomic nervous system that is activated when a person is excited or scared
Nervous system
Parasympathetic nerves
branch of the autonomic nervous system that is active when a person is eating or at rest
Nervous system
Sensory-somatic nervous system
part of the peripheral nervous system that consists of 12 pairs of cranial nerves, 31 pairs of spinal nerves, and associated ganglia; controls voluntary actions of the body
Nervous system
Ganglia
collection of nerve cell bodies
Nervous system
Dendrites
branched extensions of the neuron that receive impulses (electric messages) from other neurons and stimuli
Nervous system
Neurons
specialized cells that make up the nervous system and transmit electrical impulses
Nervous system
axon
part of the nerve cell that carries impulses away from the cell body and connects one neuron with another neuron over a synapse
Nervous system
synapse
fluid-filled gap that connects the axon of one nerve cell with the cell body of another
Nervous system
stimuli
a thing or event that evokes a specific functional reaction in an organ or tissue
Nervous system
sensory neurons
neurons that carry messages from sense organs to the brain and spinal cord
Nervous system
reflex
automatic response to a stimulus that occurs when neurons transmit a message to the spinal cord, which in turn sends a message back to the muscles to react before the message is transmitted to the brain
Nervous system
effectors
glans and muscles that are innervated and extend away from the spinal cord
Nervous system
immune system
tissues, cells, and organs that work together to fight off illness and disease
Immune system
pathogens
any disease-causing agent
Immune system
phagocytosis
engulfing of pathogens by white blood cells
Immune system
perforins
pore-forming protein
Immune system
interferons
protein that inhibits the reproduction o a virus
Immune system
lyse
Latin word for break; used in biology and chemistry to mean rupture or destruction of the cell membrane, a cell structure, or a molecule
Immune system
Lysosome
Organelle containing digestive enzymes capable of disposing of cellular debris and worn cellular parts
Think "Lysol" cleans away debris



Immune system



chemotaxis
release of chemicals by damaged cells that attract white blood cells
Immune system
leukocytes
white blood cells
Immune system
cytokines
chemical messengers that are released by damaged tissues
Immune system
diapedesis
process of white blood cells squeezing through the capillary slits in response to cytokines
Immune system
antibodies
protein produced by a B cell in response to an antigen
Immune system
antigen
a foreign protein, such as a pathogen, that stimulates antibody production
Immune system
vaccine
inactivated form of a pathogen that stimulates the body to produce antibodies for future protection
Immune system
B cells
type of lymphocyte that produces antibodies in response to antigens; responsible for humoral immunity
Immune system
T cell
lymphocyte that is responsible for cellular immuntiy
Immune system
What kinda of immunity is produced by vaccine?


A) Naturally acquired passive immunity


B) Artificially acquired passive immunity


C) Naturally acquired active immunity

D) Artificially acquired active immunity
D) Vaccines provide an artificial source (as compared to a natural source that comes from actually having a disease) of active immunity that stimulates antibody and memory cell production.
Immune System
Which of the following are released by damaged cells in an effort to draw white blood cells to the area of damage?

A) Phagocytes


B) Cytokines


C) Interferons


D) Leukocytes

B) Damaged tissue releases cytokines, which attract white blood cells to the area of infection or injury.
Immune System
What is the physiological benefit of a mild to moderate fever?

A) Warns individual that body is under attack by a pathogen


B) Stimulates release of macro-phages


C) Decreased metabolism


D) Enhances destruction of pathogens

D) The warm body temperature that occurs during a fever accelerates the destruction of pathogens and increases the activity of white blood cells.
Immune System
Fertility Rates
Refers to the average number of children a woman will have during her childbearing years, which occur between the ages of 15 and 44
Birth rates & Fertility rates
Fertility rates are higher in which of the following types of countries?
Fertility rates are higher in less-developed countries due to higher infant and child mortality rates.
Birth rates & Fertility rates
Crude birth rate
is defined by the number of births per 1,000 people per year
Crude death rate
is defined by the number of deaths per 1,000 people per year




Immigration
is the act of an individual moving into a region or country to live
"I" for "IN"
Emigration
is the act of an individual moving out of one region or country to live in another
"E" is for "OUT" (think of "end"