BIO 201 EXAM 3 WITH CORRECT
ANSWERS 2025
Function of Nervous System correct answers >> sensory
input-info about ext. and int. changes, gathered by sensory
neurons (f(x) to detect ext. and int. stimuli)
integration-interpretation of sensory neurons (f(x) integrates,
analyzes, and stores info; decides on action to take)
motor output-activation of effector organs, which produces a
response (f(x) elicits proper responses)
brain and spinal cord
integrative and control centers correct answers >> CNS
cranial nerves and spinal nerves
communication lines b/t CNS and rest of body correct answers
>> PNS
somatic and visceral sensory nerve fibers
conducts impulses from receptors to CNS correct answers >>
sensory (afferent) division
,motor nerve fibers
conducts impulses from CNS to effectors(muscles and glands)
correct answers >> motor (efferent) division
voluntary (somatic motor)
conducts impulses from CNS to skeletal muscles correct
answers >> somatic NS
involuntary(visceral motor)
conducts impulses from CNS to cardiac muscles, smooth muscles,
and glands correct answers >> autonomic NS
mobilizes body systems during activity correct answers >>
sympathetic division
conserves energy
promotes house keeping functions during rest correct answers
>> parasympathetic division
functional cells that transmit electrical signals correct answers
>> neurons
supporting cells of nervous system correct answers >>
Neuroglia (glial cells)
6 types of neuroglia correct answers >> Neuroglia of CNS
, • oligodendrocytes
• ependymal cells
• microglia
• astrocytes
Neuroglia of PNS
• schwann cells
• satellite cells
provide nutrients & remove excess NT & regulate ion amounts
abundant, versatile, highly branched
wrap around neurons, synapses and capillaries
star shaped cells that support and anchor neurons
capillary permeability and chemical environment
assist in formation of blood brain barrier (protective barrier/layer
b/t blood and brain to protect brain)
guide young migrating neurons
process brain info
ANSWERS 2025
Function of Nervous System correct answers >> sensory
input-info about ext. and int. changes, gathered by sensory
neurons (f(x) to detect ext. and int. stimuli)
integration-interpretation of sensory neurons (f(x) integrates,
analyzes, and stores info; decides on action to take)
motor output-activation of effector organs, which produces a
response (f(x) elicits proper responses)
brain and spinal cord
integrative and control centers correct answers >> CNS
cranial nerves and spinal nerves
communication lines b/t CNS and rest of body correct answers
>> PNS
somatic and visceral sensory nerve fibers
conducts impulses from receptors to CNS correct answers >>
sensory (afferent) division
,motor nerve fibers
conducts impulses from CNS to effectors(muscles and glands)
correct answers >> motor (efferent) division
voluntary (somatic motor)
conducts impulses from CNS to skeletal muscles correct
answers >> somatic NS
involuntary(visceral motor)
conducts impulses from CNS to cardiac muscles, smooth muscles,
and glands correct answers >> autonomic NS
mobilizes body systems during activity correct answers >>
sympathetic division
conserves energy
promotes house keeping functions during rest correct answers
>> parasympathetic division
functional cells that transmit electrical signals correct answers
>> neurons
supporting cells of nervous system correct answers >>
Neuroglia (glial cells)
6 types of neuroglia correct answers >> Neuroglia of CNS
, • oligodendrocytes
• ependymal cells
• microglia
• astrocytes
Neuroglia of PNS
• schwann cells
• satellite cells
provide nutrients & remove excess NT & regulate ion amounts
abundant, versatile, highly branched
wrap around neurons, synapses and capillaries
star shaped cells that support and anchor neurons
capillary permeability and chemical environment
assist in formation of blood brain barrier (protective barrier/layer
b/t blood and brain to protect brain)
guide young migrating neurons
process brain info
