Peripheral Nervous System

Question 1

A bundle of neuron fibers found outside the CNS

Answer 1

Nerve

Question 2

Nerve Structures:

Answer 2

I. Endoneurium
II. Perineurium
III. Epineurium

Question 3

Carries sensations

Answer 3

Afferent (Sensory) Nerves

Question 4

Carries motor fibers

Answer 4

Efferent (Motor) Nerves

Question 5

both sensation & motor fibers

Answer 5

Mixed Nerves

Question 6

Note:

Answer 6

All spinal nerves are MIXED

Question 7

Oh, Oh, Oh, To Touch And Feel A
Girl’s Vagina Ah, Heaven!

Answer 7

Cranial Nerves

Question 8

Cranial nerves

Answer 8

I. Olfactory Nerve
II. Optic Nerve
III. Oculomotor Nerve
IV. Trochlear Nerve
V. Trigeminal Nerve
VI. Abducens Nerve

VII. Facial Nerve
VIII. Acoustic Nerve
IX. Glossopharyngeal Nerve
X. Vagus Nerve
XI. Accessory Nerve
XII. Hypoglossal Nerve

Question 9

Sense of smell

Answer 9

Olfactory Nerve

Question 10

Vision

Answer 10

Optic Nerve

Question 11

Function:
a. Nerve supply for the muscles that direct the
eyeball.
• CN4: Superior Oblique
• CN6: Lateral Rectus
• CN3: Superior & Inferior Recti; Inferior Oblique
b. Controls cardinal g

Answer 11

Cranial Nerve 3, 4, 6

Question 12

Largest cranial nerve because of it’s sensory
distribution

Function:
Motor: Muscles of mastication
Sensory: Facial Sensation
• Opthalmic Division
• Maxillary Division
• Mandibular Division

Answer 12

Trigeminal Nerve

Question 13

• Function:
• Motor: Facial Expressions
• Sensory: Taste for the anterior 2/3 of the
tongue
• Autonomic: Salivation & Lacrima formation

Answer 13

Facial Nerve

Question 14

Balance & Hearing

Answer 14

Acoustic Nerve

Question 15

Function
• Motor: Stylopharyngeus Muscle
• Sensory: Taste & general sensation to
posterior 1/3 of the tongue
• Autonomic: Parotid gland; monitors carotid
body & sinus

Answer 15

Glossopharyngeal Nerve

Question 16

Function
• Motor: Muscles of the pharynx & larynx
• Sensory: Skin to the pinna of the external ear & sensation to pharynx, larynx & epiglottis
• Autonomic: Innervates visceral organs of the thorax & abdomen

Answer 16

Vagus Nerve

Question 17

Function
• 2 parts
• Cranial: supplies pharyngeal muscles
• Spinal: Supplies SCM & Trapezius

Answer 17

Accessory Nerve

Question 18

Function: Supplies tongue muscles

Answer 18

Hypoglossal Nerve

Question 19

• Muscle: Deltoid
• Skin: shoulder & superior thorax

Answer 19

Axillary

Question 20

• Muscle: Triceps & Wrist extensors
• Skin: Posterior upper limb

Answer 20

Radial

Question 21

• Muscle: Wrist flexors; Some hand intrinsics
• Skin: forearm

Answer 21

Median

Question 22

• Muscle: Arm flexors
• Skin: Lateral forearm

Answer 22

Musculocutaneous

Question 23

• Muscle: Some wrist flexors & most of hand
intrinsics
• Skin: hand

Answer 23

Ulnar

Question 24

• Muscle: Hip flexors & Knee extensors
• Skin: anteromedial leg & thigh

Answer 24

Femoral

Question 25

• Muscle: Adductors • Skin: Medial thigh

Answer 25

Obturator

Question 26

• Largest nerve in the body • Muscle: hip extensors & knee flexors • Skin: Lower trunk & posterior th

Answer 26

Sciatic Nerve

Question 27

• Muscle: Peroneals • Skin: lateral leg & foot

Answer 27

Common Fibular Nerve (Superficial & Deep)

Question 28

• Muscle: Calf muscles • Skin: Posterior leg & foot

Answer 28

Tibial Nerve

Question 29

Innervate gluteal muscles of the hip

Answer 29

Superior & Inferior Gluteal Nerve

Question 30

motor subdivision of PNS that controls body activities automatically

Answer 30

Autonomic Nervous System

Question 31

• Thoracolumbar division • T1-L3 • aka Fight or Flight Response; Emergency Response; Stress Response; Excitemetn; Exercise; Adrenergic Response • Predominant Neurotransmitters • Epinephrine • Norepinephrine

Answer 31

Sympathetic nervous system

Question 32

• Craniosacral Division • Cranial Nerves: 10, 9, 7, 3 • Sacral Nerves: S2, S3, S4 (urinary bladder) • aka Rest & Digest; Cholinergic Response • Predominant Neurotransmitter • Acetylcholine

Answer 32

Parasympathetic nervous system

Question 33

3 Major Area of the Ear:

Answer 33

1. External Ear 2. Middle Ear 3. Internal Ear

Question 34

The Eye: Muscles

Answer 34

1. Superior Oblique 2. Inferior Oblique 3. Superior Rectus 4. Inferior Rectus 5. Lateral Rectus 6. Medial Rectus

Question 35

Auricle & External Acoustic Meatus

Answer 35

External Ear

Question 36

• small, air-filled, mucosa-lined cavity in the temporal bone • (+) Ossicles • Malleus, Anvil, Stapes

Answer 36

Middle ear

Question 37

• Bony labyrinth • 3 subdivisions: cochlea,vestibule & semicircular canals

Answer 37

Internal ear

Question 38

▪ (+) Maculae ▪ Reports changes in the position of the head in space wth respect to the pull of gravity when body is moving.

Answer 38

Static

Question 39

▪ (+) Dynamic Equilibrium Receptors ▪ respond to angular or rotational movements of the head rather than to straight￾line movements.

Answer 39

Dynamic