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Anatomy & Physiology
Chapters 8 & 9
22
Anatomy
Undergraduate 1
10/14/2012

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Term
general senses
Definition
sensitivity to temperature, pain, touch, pressure, vibrations and prrioception
Term
sensation
Definition
information received by the sensory receptors
Term
perception
Definition
the conscious awareness of a sensation
Term
exteroceptors
Definition
general sensory receptors in the skin, mucous membranes, and special sense organs that provide information about the external environment and about our position within in
Term
proprioceptor
Definition
a receptor located in a muscle or tendon; concerned with locomotion, posture, and muscle tone
Term
interoceptor
Definition
sensory receptor monitoring the functions and status of internal organs and systems
Term
photoreceptors
Definition
specialized receptor cells that respond to light energy
Term
accommodation
Definition
(1) adaptation in response to differences or changing needs; (2) adjustment of the eye for seeing objects at close range
Term
refract
Definition
bend; usually refers to light
Term
mechanoreceptors
Definition
receptors sensitive to mechanical pressures such as touch, sound, or contractions
Term
chemoreceptors
Definition
receptor sensitive to various chemicals in solution
Term
dynamic equilibrium
Definition
sense that reports on angular or rotator movements of the head in space
Term
static equilibrium
Definition
balance concerned with changes in the position of the head
Term
baroreceptor
Definition
the receptor responsible for baroreception
Term
tactile
Definition
pertaining to the sense of touch
Term
hormone
Definition
chemical messenger secreted by endocrine glands; responsible for specific regulatory effects on certain parts or organs
Term
target cells
Definition
specific cells that posess the receptors needed to find and “read” the hormonal messages as they arrive
Term
exocrine gland
Definition
gland that has ducts through which its secretions are carried to a body surface (skin or mucosa
Term
endocrine glands
Definition
ductless gland that empties its hormonal products directly into the blood
Term
intercellular
Definition
between the body cells
Term
tropic hormone
Definition
a hormone that regulates the function of another endocrine organ
Term
negative feedback
Definition
a corrective mechanism that opposes or negates a variation from normal limits
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