NeuroAnatomy_Unit3_Lec3

Question 1

GSA

Answer 1

General Somatic Afferent

transmits sensory including pain, temp, touch, pressure, and proprioception from muscles, tendons and joints

Question 2

GVA

Answer 2

General Visceral Afferent

Transmits sensations from mucous membranes, glands, blood vessels and other smooth muscle components.

Question 3

GSE

Answer 3

General Somatic Efferent

Transmits to skeletal muscle

Question 4

GVE

Answer 4

General Visceral Efferent

Transmits to smooth muscle, cardiac muscle, or glandular tissues

Question 5

SSA

Answer 5

Special Somatic Afferent

Transmits impulses enabling vision, hearing, and equilibrium.

Question 6

SVA

Answer 6

Special Visceral Afferent

Transmits impulses involving smell and taste

Question 7

SVE

Answer 7

Special Visceral Efferent

Transmits impulses to skeletal muscles that are embryologically related to the digestive tract. (Includes muscles of mastication and facial expression, as well as some muscles of the pharynx and larynx)

Question 8

How will sympathetic fibers get to the brain?

Answer 8

The sympathetic fibers synapse in the superior cervical ganglion, the postsynaptic fibers will wrap around the internal (majority of fibers choose this) or external (minority of fibers choose this) carotid artery.

Question 9

Deep Petrosal Nerve

Answer 9

Sympathetic nerve branch off of the internal carotid plexus that will combine with the Greater Petrosal Nerve (a branch of the Facial nerve) to form the Nerve of the Pterygoid Canal.

The sympathetic fibers from the pterygoid canal will supply the nose palate and lacrimal glands.

Question 10

Long Ciliary Nerve

Answer 10

Branch off of the Nasociliary Nerve from the Opthalmic Division that innervates the dilator pupillae.

Question 11

How do parasympathetic fibers exit the brainstem?

Answer 11

They travel out with CNIII, CN VII, CN IX, or CN X.

(Though they are anatomically associated with branches of the Trigeminal Nerve (CN V)

Question 12

Ciliary Ganglion travels with

Answer 12

CN III

Question 13

Pterygopalatine Ganglion travels with

Answer 13

CN VII

Question 14

Submandibular Ganglion travels with

Answer 14

CN VII

Question 15

Otic Ganglion travels with

Answer 15

CN IX

Question 16

CN I

Answer 16

Olfactory
SVA
Smell
Attaches directly to the brain

Question 17

CN II

Answer 17

Optic
SSA
Vision
Attaches directly to the brain

Question 18

CN III

Answer 18

Oculomotor
GSE
Motor-to the muscles of the eye

Question 19

CN IV

Answer 19

Trochlear
GSE
to the superior oblique muscle of the eye

Question 20

CN V

Answer 20

Trigeminal
SVE
to the muscles of mastication

Question 21

CN VI

Answer 21

Abducens
GSE
Motor to the lateral rectus muscle of the eye

Question 22

CN VII

Answer 22

Facial
Mixed
Motor to the muscles of facial expression

Question 23

CN VIII

Answer 23

Vestibulocochlear
SSA
Balance, proprioception and hearing

Question 24

CN IX

Answer 24

Glossopharyngeal
Mixed
1.) Skeletal Motor- elevates the pharynx during swallowing
2.) Visceral Sensory- Blood Pressure and chemoreceptors
3.) General Sensory- mucous membranes
4.) Parasympathetic- secretomotor to the Parotid gland
5.) Taste- posterior 1/3 of the tongue

Question 25

CN X

Answer 25

Vagus

Mixed

Question 26

CN XI

Answer 26

Spinal Accessory

SVE

Question 27

CN XII

Answer 27

Hypoglossal
GSE
motor to the muscles of the tongue