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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 |
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Anabolism |
assembly of more complex molecules from simpler molecules - requires energy |
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Catabolism |
breaking down of more complex molecules into simpler molecules - releases energy |
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abdominopelvic cavity |
division of the anterior (ventral) cavity that houses the abdominal and pelvic viscera |
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anterior (ventral) cavity |
includes serous membranelined pleural cavities for lungs, pericardial cavity for heart, peritoneal cavity for abdominal and pelvic organs |
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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) |
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CT |
computed tomography: imaging in which a computer enhanced cross sectional X-ray image is obtained. |
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control center |
compares values to their normal range; deviations cause the activation of an effector |
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cranial (superior) |
describes a position above or higher than another part of the body proper |
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cranial cavity |
division of the posterior cavity that houses the brain. |
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differentiation |
process by which unspecialized cells become specialized in structure and function. |
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distal |
describes a position farther from the point of attachment or the trunk of the body |
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dorsal (posterior body) cavity |
posterior body cavity includes brain and spinal cord |
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effector |
organ that can cause a change in a value |
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homeostasis |
steady state organisms maintain |
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inferior |
same as caudal |
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lateral |
describes the side or direction toward the side of the body |
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MRI |
imaging in which a device generates a magnetic field to obtain detailed sectional images of the internal structure of the body. |
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medial |
describes the middle or direction toward the middle of the body |
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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. |
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normal range |
range of values around the set point that do not cause a reaction by the control center. |
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pericardium |
sac that encloses the heart. |
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peritoneum |
serous membrane that lines the abdominopelvic cavity and covers the organs found there. |
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pleura |
serous membrane lines pleural cavity and covers the lungs. |
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positive feedback |
mechanism intensifies a change in the body's physiological condition in response to a stimulus. |
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PET |
imaging in which radiopharmaceuticals are traced to reveal metabolic and physiological functions in tissues. |
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posterior cavity |
same as dorsal cavity |
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pressure |
force exerted by a substance in contact with another substance |
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prone |
face down |
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proximal |
describes a position nearer to the point of attachment or the trunk of the body. |
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sagittal plane |
two dimensional vertical plane divides the body or organ into right and left sides. |
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section |
a single flat surface of a 3 dimensional structure that has been cut through. |
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sensor (also receptor) |
reports a monitored physiological value to the control center. |
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serous membrane (serosa) |
membrane that covers organs and reduces friction; |
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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. |
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superficial |
describes a position nearer to the surface of the body. |
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superior |
same as cranial |
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supine |
face up |
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thoracic cavity |
division of the anterior (ventral) cavity that houses the heart, lungs, esophagus and trachea |
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tissue |
group of similar or closely related cells that act together to perform a specific function. |
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traverse plane |
2 dimensional, horizontal plane that divides the body into superior and inferior portions |
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ultrasonography |
ultrasonic waves to visualize subcutaneous body structures such as tendons and organs. |
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ventral |
aka: anterior, describes the front or direction toward the front of the body. |
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ventral cavity |
same as anterior cavity |
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X-ray |
high electromagnetic radiation with a short wavelength capable of penetrating solids and ionizing gases; |