EXAM 4 NURS 5315 Questions with 100% Verified Correct Answers 2024/2025 12 Cranial nerves - Correct Answer 1. Olfactory
- Optic
- Oculomotor
- Trochlear
- Trigeminal
- Abducens
- Facial
- Vestibulocochlear
- Glossopharyngeal
- Vagus
- Accessory
- Hypoglossal
- PNS has the afferent and efferent pathways
- fueled by glucose
- 3 parts to a neuron
- cell body 1 / 2
Afferent nerves - Correct Answer sensory nerves that carry impulses from the cells, tissues, and organs to the CNS system.Efferent nerves - Correct Answer carry impulses from the CNS to cells, tissues, and organs, motor nerve Central Nervous System - Correct Answer brain and spinal cord peripheral nervous system - Correct Answer *12 cranial nerves and 31 spinal nerves *further subdivided into the somatic nervous system and the autonomic nervous system
Neuron - Correct Answer * basic functional unit of the nervous system
- 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
- Myelin sheath- allows impulses to flow between the nodes of Ranvier in an increased velocity
- mature neurons do not replicate and injury to them is permanent
- grey matter
- astrocytes
- oligodendroglia
- microglia
- ependymal cells
- part of the blood brain barrier
- provide rapid transport for nutrients
- has a role in scar formation and seizures
- / 2
material, the myelin sheaths are interrupted in certain spots by the nodes of Ranvier
called the salutatory conduction.
Sensory neurons - Correct Answer afferent neurons that carry impulses to the CNS motor neurons - Correct Answer efferent neurons that carry away from the CNS associational neurons - Correct Answer transmit impulses form neuron to neuron and only found in the CNS axonal reaction - Correct Answer process in which the peripheral nerves are capable of self repair neuroglia - Correct Answer 4 different types
neuroglia- astrocytes - Correct Answer * fill space between neurons and surround blood vessels