Cranial nerves

Peripheral Nervous System: 

Peripheral Nervous System Carries information from periphery (end organs or external environment) toward the CNS Carries information from CNS out toward end organ Peripheral nerves carry information (afferent and efferent) These nerves enter/exit the CNS at the spinal cord and brain stem (generally)

PowerPoint Presentation: 

Figure 13.5a

13_02: 

13_02

Peripheral nerve anatomy: 

Peripheral nerve anatomy Wrapped up in connective tissue sheaths Endoneurium - wraps up individual axons Perineurium - wraps up bundles of axons (fascicles) Epineurium – wraps up the entire peripheral nerve …not to be confused with skeletal muscles Endomysium - wraps up individual muscle fibers Perimysium - wraps up bundles of muscle fibers Epimysium - wraps up the entire skeletal muscle

PowerPoint Presentation: 

Figure 13.3

Cranial nerves: 

Cranial nerves Come out of the brain stem (except CN1, CN2) Control stuff in the head and face … except for CN10 which goes all over the place (gut, heart etc.) 12 pairs of cranial nerves Know the name, number and function of all 12

PowerPoint Presentation: 

Figure 13.5a

PowerPoint Presentation: 

Figure 13.5b

PowerPoint Presentation: 

Table 13.2.1

PowerPoint Presentation: 

Table 13.2.2

PowerPoint Presentation: 

Table 13.2.3

PowerPoint Presentation: 

Table 13.2.4

PowerPoint Presentation: 

Table 13.2.7

PowerPoint Presentation: 

Table 13.2.5

PowerPoint Presentation: 

Table 13.26

PowerPoint Presentation: 

Table 13.2.8

PowerPoint Presentation: 

Table 13.29

PowerPoint Presentation: 

Table 13.2.11

PowerPoint Presentation: 

Table 13.2.12

PowerPoint Presentation: 

Table 13.2.13

PowerPoint Presentation: 

Table 13.2.14

PowerPoint Presentation: 

Table 13.2.15

PowerPoint Presentation: 

Figure 13.6 Cranial nerves 1-12