1/4
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
What does the peripheral nervous system consist of
All nervous tissue outside the central nervous system (cranial nerves, spinal nerves, sensory receptors, ganglia, etc)
What are the two of the six types of neuroglia found in the PNS and their function
Schwann cells-forms myelin sheath around axons
Satellite cells-provides structural support and regulate the exchange of material
What is a nerve and describe the organization of the nerve
a nerve is a bundle of axons and their neuroglia wrapped in connective tissue
Endoneurium- surrounds each axon
Perineurium- surrounds each bundle of axons
Epineurium- external layer of a nerve
Describe the three functional types of nerves
Sensory (afferent) nerves- transmit information towards the CNS
Motor (efferent) nerves- transmit information away from the CNS
Mixed nerves- composed of sensory and motor neuron (transmit information in both directions)
Out of the twelve cranial nerves, what are cranial nerves 1-4, is it sensory, motor or mixed and their function
Cranial nerve 1- Olfactory nerve sensory. Its function is smell
Cranial nerve 2- Optic nerve (sensory) its function is vision
Cranial nerve 3- Oculomotor (motor)