BIOL 2401 Tarrant County College -BIOL 2401 EXAM 4
QUESTIONS | 2026/2027 | ANSWERS CORRECT | WITH
COMPLETE SOLUTIONS
ANS is a system of motor neuron that regulate what? Correct
Answers Heart rate
Blood pressure
Digestion
Urination
Are thick axons myelinated or nonmyelinated? Correct Answers
myelinated
Are thin axons myelinated or nonmyelinated? Correct Answers
nonmyelinated. conduct impulses more slowly
Autonomic nerve plexuses Correct Answers Cardiac plexus
Pulmonary plexus
Esophageal plexus
Celiac plexus
Superior mesenteric plexus
Autonomic nervous
system (ANS) Correct Answers -Motor innervation of
smooth muscle, cardiac
muscle, and glands
Axodendritic synapses Correct Answers -Between axon
terminals of one neuron and dendrites of another
Axons Correct Answers -Neuron has only one
,Impulse generator and conductor
Transmits impulses away from the cell body
No protein synthesis in axon
Axosomatic synapses Correct Answers Between axons and
neuronal cell bodies
body sense Correct Answers positions and movement of body
in space
Brachial Motor Correct Answers -Typical skeletal muscle
derived from somitomeres.
Brachial plexus Correct Answers
Cauda equina Correct Answers Collection of spinal nerve roots
Cerebral aqueduct Correct Answers connects 3rd and 4th
ventricles
Cerebral cortex body maps Correct Answers
Cerebrospinal fluid is formed______.. Correct Answers in
choroid plexuses in the brain ventricles
Cervical and lumbar enlargements Correct Answers Where
nerves for upper and lower limbs arise
Cervical plexus Correct Answers
, Choroid plexus Correct Answers lies in the roof of the fourth
ventricle
Choroid plexus is Correct Answers -Located in all four
ventricles
-Composed of ependymal cells and capillaries
Conus medullaris Correct Answers The inferior end of the
spinal cord
cranial nerves Correct Answers -Attach to the brain and pass
through specific foramina of the skull
-Numbered from I to XII
CSF arises from what ? Correct Answers -blood.
-500 ml produced per day
-Only 100-160 ml present at any one time
Dendrites Correct Answers -Extensively branching from the
cell body
-Transmit electrical signals toward the cell body
-Function as receptive sites for receiving signals from other
neurons
Dermatomes Correct Answers an area of skin
Innervated by cutaneous branches of a single spinal nerve
Divisions of the trigeminal nerve Correct Answers Ophthalmic
division (V1)
Maxillary division (V2)
Mandibular division (V3)
QUESTIONS | 2026/2027 | ANSWERS CORRECT | WITH
COMPLETE SOLUTIONS
ANS is a system of motor neuron that regulate what? Correct
Answers Heart rate
Blood pressure
Digestion
Urination
Are thick axons myelinated or nonmyelinated? Correct Answers
myelinated
Are thin axons myelinated or nonmyelinated? Correct Answers
nonmyelinated. conduct impulses more slowly
Autonomic nerve plexuses Correct Answers Cardiac plexus
Pulmonary plexus
Esophageal plexus
Celiac plexus
Superior mesenteric plexus
Autonomic nervous
system (ANS) Correct Answers -Motor innervation of
smooth muscle, cardiac
muscle, and glands
Axodendritic synapses Correct Answers -Between axon
terminals of one neuron and dendrites of another
Axons Correct Answers -Neuron has only one
,Impulse generator and conductor
Transmits impulses away from the cell body
No protein synthesis in axon
Axosomatic synapses Correct Answers Between axons and
neuronal cell bodies
body sense Correct Answers positions and movement of body
in space
Brachial Motor Correct Answers -Typical skeletal muscle
derived from somitomeres.
Brachial plexus Correct Answers
Cauda equina Correct Answers Collection of spinal nerve roots
Cerebral aqueduct Correct Answers connects 3rd and 4th
ventricles
Cerebral cortex body maps Correct Answers
Cerebrospinal fluid is formed______.. Correct Answers in
choroid plexuses in the brain ventricles
Cervical and lumbar enlargements Correct Answers Where
nerves for upper and lower limbs arise
Cervical plexus Correct Answers
, Choroid plexus Correct Answers lies in the roof of the fourth
ventricle
Choroid plexus is Correct Answers -Located in all four
ventricles
-Composed of ependymal cells and capillaries
Conus medullaris Correct Answers The inferior end of the
spinal cord
cranial nerves Correct Answers -Attach to the brain and pass
through specific foramina of the skull
-Numbered from I to XII
CSF arises from what ? Correct Answers -blood.
-500 ml produced per day
-Only 100-160 ml present at any one time
Dendrites Correct Answers -Extensively branching from the
cell body
-Transmit electrical signals toward the cell body
-Function as receptive sites for receiving signals from other
neurons
Dermatomes Correct Answers an area of skin
Innervated by cutaneous branches of a single spinal nerve
Divisions of the trigeminal nerve Correct Answers Ophthalmic
division (V1)
Maxillary division (V2)
Mandibular division (V3)
