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BMSC207- Module 6 Test with Questions and 100% Correct Answers
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BMSC207- Module 6 Test with Questionsand 100% Correct Answers
what is catecholamines? - Answer signal molecule formed from tyrosine;
includes epinephrine, norepinephrine and dopamine
what are postganglionic neurons? - Answer an autonomic neuron that has its cell
body in the ganglion and send its axon to the target tissue
what is preganglionic neurons? - Answer an autonomic neuron that originates in
the spinal cord and terminated in an autonomic ganglion
what is the receptor adaption? - Answer a reduction in sensory receptor activation
in response to repeated stimuli
what is reception potential? - Answer graded potential in a sensory neuron
what does somatic senses include? - Answer include the sensations of tough-
pressure, temperature, pain, and proprioception
what does special senses include? - Answer the sensations of vision, hearing,
taste, smell, and equilibrium
, what is transducer (receptor)? - Answer the portion of a sensory neuron that
is responsible for converting a sensory stimulus into an electrical signal
what does the sensory system provide? - Answer provide us with information about
the environment outside and inside our body
what are general properties of sensory systems? - Answer - a sensory neuron with
a transducer (receptor), that coverts a physical stimulus into an intracellular signal
(change in membrane potential)
- usually through the opening or closing of gated channels
what are some examples of chemoreceptors? - Answer - blood chemoreceptors
- nociceptors
- hypothalamic glucose sensing neurons
- taste, smell
what are some examples of stimuli for chemoreceptors? - Answer - oxygen
- pH
- various organic molecules such as glucose
what are some examples of stimuli for mechanoreceptors? - Answer -
pressure (baroreceptors)
- cell stretch (osmoreceptors)
- vibration
- acceleration
- sound
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