NURS 5315 EXAM 4 QUESTIONS AND ANSWERS | NURS 5315 EXAM 4
STUDY GUIDE & PRACTICE TEST 2026/2027
12 Cranial nerves - ANS✔✔ 1. Olfactory
2. Optic
3. Oculomotor
4. Trochlear
5. Trigeminal
6. Abducens
7. Facial
8. Vestibulocochlear
9. Glossopharyngeal
10. Vagus
11. Accessory
12. Hypoglossal
Afferent nerves - ANS✔✔ sensory nerves that carry impulses from the cells, tissues, and organs
to the CNS system.
Efferent nerves - ANS✔✔ carry impulses from the CNS to cells, tissues, and organs, motor nerve
Central Nervous System - ANS✔✔ brain and spinal cord
peripheral nervous system - ANS✔✔ *12 cranial nerves and 31 spinal nerves
*further subdivided into the somatic nervous system and the autonomic nervous system
* PNS has the afferent and efferent pathways
, Neuron - ANS✔✔ * basic functional unit of the nervous system
* fueled by glucose
* 3 parts to a neuron
- cell body
- dendrite
- axon
* mostly in the CNS and called nuclei in a group
* in the PNS the groups are called ganglia or plexus
* dendrites- projections that collect information and direct it to the cell body
* Axon- conducts impulses to the next neuron, axons are covered in myelin sheaths that are
lipid material, the myelin sheaths are interrupted in certain spots by the nodes of Ranvier
* Myelin sheath- allows impulses to flow between the nodes of Ranvier in an increased velocity
called the salutatory conduction.
* mature neurons do not replicate and injury to them is permanent
* grey matter
Sensory neurons - ANS✔✔ afferent neurons that carry impulses to the CNS
motor neurons - ANS✔✔ efferent neurons that carry away from the CNS
associational neurons - ANS✔✔ transmit impulses form neuron to neuron and only found in the
CNS
axonal reaction - ANS✔✔ process in which the peripheral nerves are capable of self repair
neuroglia - ANS✔✔ 4 different types
STUDY GUIDE & PRACTICE TEST 2026/2027
12 Cranial nerves - ANS✔✔ 1. Olfactory
2. Optic
3. Oculomotor
4. Trochlear
5. Trigeminal
6. Abducens
7. Facial
8. Vestibulocochlear
9. Glossopharyngeal
10. Vagus
11. Accessory
12. Hypoglossal
Afferent nerves - ANS✔✔ sensory nerves that carry impulses from the cells, tissues, and organs
to the CNS system.
Efferent nerves - ANS✔✔ carry impulses from the CNS to cells, tissues, and organs, motor nerve
Central Nervous System - ANS✔✔ brain and spinal cord
peripheral nervous system - ANS✔✔ *12 cranial nerves and 31 spinal nerves
*further subdivided into the somatic nervous system and the autonomic nervous system
* PNS has the afferent and efferent pathways
, Neuron - ANS✔✔ * basic functional unit of the nervous system
* fueled by glucose
* 3 parts to a neuron
- cell body
- dendrite
- axon
* mostly in the CNS and called nuclei in a group
* in the PNS the groups are called ganglia or plexus
* dendrites- projections that collect information and direct it to the cell body
* Axon- conducts impulses to the next neuron, axons are covered in myelin sheaths that are
lipid material, the myelin sheaths are interrupted in certain spots by the nodes of Ranvier
* Myelin sheath- allows impulses to flow between the nodes of Ranvier in an increased velocity
called the salutatory conduction.
* mature neurons do not replicate and injury to them is permanent
* grey matter
Sensory neurons - ANS✔✔ afferent neurons that carry impulses to the CNS
motor neurons - ANS✔✔ efferent neurons that carry away from the CNS
associational neurons - ANS✔✔ transmit impulses form neuron to neuron and only found in the
CNS
axonal reaction - ANS✔✔ process in which the peripheral nerves are capable of self repair
neuroglia - ANS✔✔ 4 different types
