Page |1
Week 5 BIOL 252 Questions and Answers with Complete
Solutions UPDATED!!!!
After eating a large meal, Mr. Davis felt sleepy. Which nervous
system dominates and is often called our "rest and digest"
division of the autonomic nervous system (ANS)? - ANSWER
parasympathetic nervous system
As Lisa drove home, she was suddenly alerted to the sound of a
blaring horn and realized she had drifted off to sleep. Which
nervous system division dominated when she was startled
awake? - ANSWER sympathetic nervous system
autonomic nervous system also called - ANSWER visceral
nervous system
Define the five components of a reflex arc. - ANSWER Sensory
receptor (touch mechano receptor) → sensory neuron (sensory
afferent) → integration center (CNS) → motor neuron (efferent
motor) → effector target (target organ)
, Page |2
Describe in two sentences each of the two division of the ANS -
ANSWER The sympathetic is short preganglionic neurons with
long post in thoracolumbar division and create the fight or flight
response. Parasympathetic is long preganglionic with short post
in the craniosacral division and is rest and digest.
does taste carry the same action potential as vision - ANSWER
all action potentials are the same but the brain can tell the
difference by the tract that starts the signals sending
duration - ANSWER phasic receptors are fast adapting receptors
so notify on change but filtration system ignores it
four kinds of information delivered to sensory inputs - ANSWER
modality, location, intensity, duration
how does proprioceptors deliver the message of stretch -
ANSWER first and second degree afferent transmit the signal
and action potential to the spinal cord.
how does the somatic and autonomic system differ with regards
to their effect on the target organs? - ANSWER Somatic sends
Week 5 BIOL 252 Questions and Answers with Complete
Solutions UPDATED!!!!
After eating a large meal, Mr. Davis felt sleepy. Which nervous
system dominates and is often called our "rest and digest"
division of the autonomic nervous system (ANS)? - ANSWER
parasympathetic nervous system
As Lisa drove home, she was suddenly alerted to the sound of a
blaring horn and realized she had drifted off to sleep. Which
nervous system division dominated when she was startled
awake? - ANSWER sympathetic nervous system
autonomic nervous system also called - ANSWER visceral
nervous system
Define the five components of a reflex arc. - ANSWER Sensory
receptor (touch mechano receptor) → sensory neuron (sensory
afferent) → integration center (CNS) → motor neuron (efferent
motor) → effector target (target organ)
, Page |2
Describe in two sentences each of the two division of the ANS -
ANSWER The sympathetic is short preganglionic neurons with
long post in thoracolumbar division and create the fight or flight
response. Parasympathetic is long preganglionic with short post
in the craniosacral division and is rest and digest.
does taste carry the same action potential as vision - ANSWER
all action potentials are the same but the brain can tell the
difference by the tract that starts the signals sending
duration - ANSWER phasic receptors are fast adapting receptors
so notify on change but filtration system ignores it
four kinds of information delivered to sensory inputs - ANSWER
modality, location, intensity, duration
how does proprioceptors deliver the message of stretch -
ANSWER first and second degree afferent transmit the signal
and action potential to the spinal cord.
how does the somatic and autonomic system differ with regards
to their effect on the target organs? - ANSWER Somatic sends
