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45 Cards in this Set

  • Front
  • Back

Metabolism

Metabolism: sum of all of the body's anabolic and catabolic chemical reactions

Anabolism

assembly of more complex molecules from simpler molecules - requires energy

Catabolism

breaking down of more complex molecules into simpler molecules - releases energy

abdominopelvic cavity

division of the anterior (ventral) cavity that houses the abdominal and pelvic viscera

anterior (ventral) cavity

includes serous membranelined pleural cavities for lungs, pericardial cavity for heart, peritoneal cavity for abdominal and pelvic organs

caudal (inferior)

describes a position below or lower than another part of the body proper; near or toward the tail (coccyx or lowest part of spinal column)

CT

computed tomography: imaging in which a computer enhanced cross sectional X-ray image is obtained.

control center

compares values to their normal range; deviations cause the activation of an effector

cranial (superior)

describes a position above or higher than another part of the body proper

cranial cavity

division of the posterior cavity that houses the brain.

differentiation

process by which unspecialized cells become specialized in structure and function.

distal

describes a position farther from the point of attachment or the trunk of the body

dorsal (posterior body) cavity

posterior body cavity includes brain and spinal cord

effector

organ that can cause a change in a value

homeostasis

steady state organisms maintain

inferior

same as caudal

lateral

describes the side or direction toward the side of the body

MRI

imaging in which a device generates a magnetic field to obtain detailed sectional images of the internal structure of the body.

medial

describes the middle or direction toward the middle of the body

negative feedback

homeostatic mechanism that tends to stabilize an upset in the body's physiological condition by preventing an excessive response to a stimulus, typically as the stimulus is removed.

normal range

range of values around the set point that do not cause a reaction by the control center.

pericardium

sac that encloses the heart.

peritoneum

serous membrane that lines the abdominopelvic cavity and covers the organs found there.

pleura

serous membrane lines pleural cavity and covers the lungs.

positive feedback

mechanism intensifies a change in the body's physiological condition in response to a stimulus.

PET

imaging in which radiopharmaceuticals are traced to reveal metabolic and physiological functions in tissues.

posterior cavity

same as dorsal cavity

pressure

force exerted by a substance in contact with another substance

prone

face down

proximal

describes a position nearer to the point of attachment or the trunk of the body.

sagittal plane

two dimensional vertical plane divides the body or organ into right and left sides.

section

a single flat surface of a 3 dimensional structure that has been cut through.

sensor (also receptor)

reports a monitored physiological value to the control center.

serous membrane (serosa)

membrane that covers organs and reduces friction;

set point

ideal value for a physiological parameter; the level or small range within which a physiological parameter such as blood pressure is stable and optimally healthful, that is, within its parameters of homeostasis.

superficial

describes a position nearer to the surface of the body.

superior

same as cranial

supine

face up

thoracic cavity

division of the anterior (ventral) cavity that houses the heart, lungs, esophagus and trachea

tissue

group of similar or closely related cells that act together to perform a specific function.

traverse plane

2 dimensional, horizontal plane that divides the body into superior and inferior portions

ultrasonography

ultrasonic waves to visualize subcutaneous body structures such as tendons and organs.

ventral

aka: anterior, describes the front or direction toward the front of the body.

ventral cavity

same as anterior cavity

X-ray

high electromagnetic radiation with a short wavelength capable of penetrating solids and ionizing gases;