GRCC BI 121 SPOs: Nervous System questions with
verified answers
Abducens nerve Ans✓✓✓ VI, lateral eye movement
Accessory nerve Ans✓✓✓ XI, trapezius /shrugging
accommodation Ans✓✓✓ the process by which the eye's lens changes
shape to focus near or far objects on the retina
anterior cavity Ans✓✓✓ filled with aqueous humor
aqueous humor Ans✓✓✓ fluid in the eye, found between the cornea
and the lens
arachnoid mater Ans✓✓✓ middle layer of the meninges
association neurons (interneurons) Ans✓✓✓ neurons that connect
motor and sensory neurons in neural pathways
astigmatism Ans✓✓✓ a condition in which the eye does not focus
properly because of uneven curvatures of the cornea
,Astrocytes Ans✓✓✓ Provide structural and metabolic support for
neurons.
Auditory ossicles Ans✓✓✓ three small bones linked together that
connect the eardrum to the inner ear
Auditory tube Ans✓✓✓ air passage between the middle ear and throat
that equalizes air pressure on either side of the eardrum; also called the
Eustachian tube
Auricle Ans✓✓✓ external ear
Axillary nerve Ans✓✓✓ Nerve branches from brachial plexus. Armpit
Axon Ans✓✓✓ the extension of a neuron, ending in branching terminal
fibers, through which messages pass to other neurons or to muscles or
glands
bipolar neuron Ans✓✓✓ a neuron with one axon and one dendrite
attached to its soma
Brachial plexus Ans✓✓✓ branches from C5-T1, leads to arms
Brain stem Ans✓✓✓ Connects the brain and spinal cord
, cauda equina Ans✓✓✓ "horse's tail", a fan of nerve fibers below the
spinal cord
central canal Ans✓✓✓ a fluid-filled channel in the center of the spinal
cord
central canal of spinal cord Ans✓✓✓ center of spinal cord which
contains cerebrospinal fluid
Central Nervous System (CNS) Ans✓✓✓ brain and spinal cord
central sulcus Ans✓✓✓ separates frontal and parietal lobes
Cerebellum Ans✓✓✓ the "little brain" at the rear of the brainstem;
functions include processing sensory input and coordinating movement
output and balance
cerebral aqueduct Ans✓✓✓ connects the third and fourth ventricles
cerebral cortex Ans✓✓✓ the intricate fabric of interconnected neural
cells that covers the cerebral hemispheres; the body's ultimate control
and information-processing center
verified answers
Abducens nerve Ans✓✓✓ VI, lateral eye movement
Accessory nerve Ans✓✓✓ XI, trapezius /shrugging
accommodation Ans✓✓✓ the process by which the eye's lens changes
shape to focus near or far objects on the retina
anterior cavity Ans✓✓✓ filled with aqueous humor
aqueous humor Ans✓✓✓ fluid in the eye, found between the cornea
and the lens
arachnoid mater Ans✓✓✓ middle layer of the meninges
association neurons (interneurons) Ans✓✓✓ neurons that connect
motor and sensory neurons in neural pathways
astigmatism Ans✓✓✓ a condition in which the eye does not focus
properly because of uneven curvatures of the cornea
,Astrocytes Ans✓✓✓ Provide structural and metabolic support for
neurons.
Auditory ossicles Ans✓✓✓ three small bones linked together that
connect the eardrum to the inner ear
Auditory tube Ans✓✓✓ air passage between the middle ear and throat
that equalizes air pressure on either side of the eardrum; also called the
Eustachian tube
Auricle Ans✓✓✓ external ear
Axillary nerve Ans✓✓✓ Nerve branches from brachial plexus. Armpit
Axon Ans✓✓✓ the extension of a neuron, ending in branching terminal
fibers, through which messages pass to other neurons or to muscles or
glands
bipolar neuron Ans✓✓✓ a neuron with one axon and one dendrite
attached to its soma
Brachial plexus Ans✓✓✓ branches from C5-T1, leads to arms
Brain stem Ans✓✓✓ Connects the brain and spinal cord
, cauda equina Ans✓✓✓ "horse's tail", a fan of nerve fibers below the
spinal cord
central canal Ans✓✓✓ a fluid-filled channel in the center of the spinal
cord
central canal of spinal cord Ans✓✓✓ center of spinal cord which
contains cerebrospinal fluid
Central Nervous System (CNS) Ans✓✓✓ brain and spinal cord
central sulcus Ans✓✓✓ separates frontal and parietal lobes
Cerebellum Ans✓✓✓ the "little brain" at the rear of the brainstem;
functions include processing sensory input and coordinating movement
output and balance
cerebral aqueduct Ans✓✓✓ connects the third and fourth ventricles
cerebral cortex Ans✓✓✓ the intricate fabric of interconnected neural
cells that covers the cerebral hemispheres; the body's ultimate control
and information-processing center
