ACTUAL QUESTIONS NEW!!!
bind with opiate receptors in the analygesic system blocking the pain signal by suppressing
substance P - CORRECT ANSWER>>>>endorphines - enkephalins
Which pain pathway?
burns - cuts transmitted over small myelinated fibres 30m / sec . - brief , sharp , easily localized -
CORRECT ANSWER>>>>Fast pain pathway
Which pain pathway?
chemicals released from damaged tissue - small unmyelinated fibres 12 m / sec , dull , aching
poorly localized - CORRECT ANSWER>>>>Slow pain pathways
-pain receptors stimulation produces both pain and an emotional response - CORRECT
ANSWER>>>>nociceptors
pain neurotransmitter released from afferent pain terminals goes to somatosensory cortex for
processi so you think about the unpleasantness of pain - CORRECT ANSWER>>>>Substance P
CNS's built in pain suppresser blocks Substance P from afferent pain fiber terminals . -
CORRECT ANSWER>>>>analgesic system
opiate receptors part of the - CORRECT ANSWER>>>>analgesic pathway
The thalamus functions to
( a ) trigger the vomiting reflex
( b ) maintain homeostasis of breathing rate , heart rate
( c )filter and direct neural signals from brain stem to areas of the cerebral cortex
( d ) maintain body temperature and oversee endocrine hormones from the pituitary
( e ) allow information to transfer between right and left hemispheres - CORRECT
ANSWER>>>>C
Photoreceptors are contained in the
( a ) retina
( b ) hypothalamus
( c ) sclera
( d ) cornea
( e ) lens - CORRECT ANSWER>>>>( a ) retina
Regarding the sympathetic division of the autonomic nervous system
( a ) preganglionic neurons arise from thoracic and lumbar nerves
( b ) postganglionic neurons release acetylcholine
( c ) preganglionic neurons release norepinephrine
, ( d ) preganglionic neurons are much longer than postganglionic neurons - CORRECT
ANSWER>>>>( a ) preganglionic neurons arise from thoracic and lumbar nerves
Which of the following would NOT be expected during a sympathetic nervous system response ?
( a ) Increase in heart contraction strength
( b ) Increase in digestive activity
( c ) Increase in heart rate
( d ) Increase in epinephrine in blood ( e ) Increase in blood pressure - CORRECT
ANSWER>>>>b ) Increase in digestive activity
When a muscle such as your bicep contracts
( a ) most actin proteins shorten
( b ) sarcomeres actually lengthen
( c ) myosin proteins shorten , actin lengthens and sarcomeres stay constant
( d ) myosin briefly and repeatedly binds with actin to slide it alongside myosin
( e ) myosin binds with calcium - CORRECT ANSWER>>>>( d ) myosin briefly and repeatedly
binds with actin to slide it alongside myosin with calcium
The function of the limbic system is to :
a ) coordinate and initiate motor movement
b ) control breathing and heart rate
c ) control language and reading ability
d ) sense signals along the motor pathway
e ) perceive emotion , basic motivation for survival behaviors . - CORRECT ANSWER>>>>( e )
perceive emotion , basic motivation for survival behaviors .
Nociceptors release from their axon terminals
( a ) substance P
( b ) glutamate
( c ) endorphins
( d ) opiates
( e ) rainbow sprinkles - CORRECT ANSWER>>>>( a ) substance P
The tympanic membrane ( eardrum ) : ( a ) contains hair cells ( b ) contains photoreceptors ( c )
controls the opening and closing of the cochlea ( d ) lies above the organ of corti ( e ) transfers its
vibrations to the middle earbones - CORRECT ANSWER>>>>( e ) transfers its vibrations to the
middle earbones
muscle cells contract quickly and use only anaerobic metabolism to generate ATP
( a ) cardiac
( b ) smooth
( c ) type 1
( d ) type 2x
( e ) type 2a - CORRECT ANSWER>>>>( d ) type 2x