ASU BIO 201- Nerves| Questions with 100%
Correct Solutions
Subdivision of PNS: Sensory division - ANSWER Sensory ( afferent ) Division - carries
sensory signals from various receptors to the CNS
- Informs the CNS of stimuli within or around the body
somatic sensory division
visceral sensory division
Somatic Sensory division - ANSWER carries signals from receptors in the skin, muscles,
bones, and joints
Visceral sensory division - ANSWER carries signals from the viscera of the thoracic and
abdominal cavities
- heart, lungs, stomach, urinary bladder, etc
Subdivision of PNS: Motor division - ANSWER Motor ( efferent ) division - carries signals
from the CNS to gland and muscle cells; the body reponse
Somatic MOTOR division - ANSWER carries signals to skeletal muscles
-output produces muscular contraction as well as somatic reflexes- involuntary muscle
contraction
Visceral MOTOR division - ANSWER ( autonomic nervous system) carries signals to
glands, cardiac muscle, and smooth muscle ( i.e., viscera)
-Invoulntary, and responses of this system and its receptors are *VISCERAL REFLEXES*
Sympathetic divison
~tends to arouse body action
, ~accelerating heartbeat and respiration, while inhibiting digestive
and urinary systems
Parasympathetic division
~tends to have a calming effect
~slows heart rate and breathing
~stimulates digestive and urinary systems
Central nervous system ( CNS ) - ANSWER Function: Intergrative and control center
Stucture: Brain and spinal cord
Peripheral nervous system ( PNS ) - ANSWER Function: Communication lines between
the CNS and the rest of the body
Neuroglia of the CNS - ANSWER Astrocytes
- Most abundant, versatile, and highly branched of glial cells
- cling to neurons , synaptic endings, and capillaries
Astrocytes - ANSWER functions include :
-support and brace neurons
- play role in exchanges between capillaries and neurons
- guide migration of young neurons
- control chemical environment around neurons
- respond to nerve impulses and neurotransmitters
- influence neuronal functioning
- participate in information processing in brain
Correct Solutions
Subdivision of PNS: Sensory division - ANSWER Sensory ( afferent ) Division - carries
sensory signals from various receptors to the CNS
- Informs the CNS of stimuli within or around the body
somatic sensory division
visceral sensory division
Somatic Sensory division - ANSWER carries signals from receptors in the skin, muscles,
bones, and joints
Visceral sensory division - ANSWER carries signals from the viscera of the thoracic and
abdominal cavities
- heart, lungs, stomach, urinary bladder, etc
Subdivision of PNS: Motor division - ANSWER Motor ( efferent ) division - carries signals
from the CNS to gland and muscle cells; the body reponse
Somatic MOTOR division - ANSWER carries signals to skeletal muscles
-output produces muscular contraction as well as somatic reflexes- involuntary muscle
contraction
Visceral MOTOR division - ANSWER ( autonomic nervous system) carries signals to
glands, cardiac muscle, and smooth muscle ( i.e., viscera)
-Invoulntary, and responses of this system and its receptors are *VISCERAL REFLEXES*
Sympathetic divison
~tends to arouse body action
, ~accelerating heartbeat and respiration, while inhibiting digestive
and urinary systems
Parasympathetic division
~tends to have a calming effect
~slows heart rate and breathing
~stimulates digestive and urinary systems
Central nervous system ( CNS ) - ANSWER Function: Intergrative and control center
Stucture: Brain and spinal cord
Peripheral nervous system ( PNS ) - ANSWER Function: Communication lines between
the CNS and the rest of the body
Neuroglia of the CNS - ANSWER Astrocytes
- Most abundant, versatile, and highly branched of glial cells
- cling to neurons , synaptic endings, and capillaries
Astrocytes - ANSWER functions include :
-support and brace neurons
- play role in exchanges between capillaries and neurons
- guide migration of young neurons
- control chemical environment around neurons
- respond to nerve impulses and neurotransmitters
- influence neuronal functioning
- participate in information processing in brain
