APK2100C] Chapter 14 Exam Study Guide.

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11/16/2024 10:16 AM


[APK2100C] Chapter 14 Exam Study Guide.


[REVIEW] Sensory (Afferent) Division - answer✔- Division of the PNS
- Contains somatic (skin) and visceral (hollow organ lining) sensory nerve fibers
- Conducts impulses from **RECEPTORS to CNS**

[REVIEW] Motor (Efferent) Division - answer✔- Division of the PNS
- Contains motor nerve fibers
- Conducts impulses from **CNS to EFFECTORS**, such as muscles and glands

General Functions of Somatic Sensory Receptors - answer✔- Touch
- Pain
- Pressure
- Vibration
- Temperature
- Proprioception in skin, body wall, and limbs

Special Functions of Somatic Sensory Receptors - answer✔- Hearing
- Equilibrium
- Vision

General Functions of Visceral Sensory Receptors - answer✔- Stretch
- Pain
- Temperature
- Chemical Changes
- Irritation in viscera (nausea and hunger)


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11/16/2024 10:16 AM

Special Functions of Visceral Sensory Receptors - answer✔- Taste
- Smell

3 Classifications of Nerves in the PNS - answer✔(1) Sensory
(2) Motor
(3) Mixed

Sensory Nerves - answer✔Contains only AFFERENT axons

Motor Nerves - answer✔Contains only EFFERENT axons

Mixed Nerves - answer✔Contains BOTH afferent and efferent axons

Cranial Nerves - answer✔Nerves attaching at the brain and passing through the skull foramina

How many pairs of cranial nerves are there? - answer✔12 pairs


*One on each side of the brain

How are cranial nerves identified? - answer✔- Numbering by Roman numerals from ROSTRAL
to CAUDAL
- Each cranial nerve is classified as either sensory, motor, OR mixed

[CN I] Olfactory Nerve - answer✔- [Classification] **Sensory**


- [Function] Sense of smell


- [Origin] Cribriform foramina of the ethmoid bone

[CN II] Optic Nerve - answer✔- [Classification] **Sensory**


- [Function] Vision


- [Origin] Retina of eye


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