Section 1

Question 1

of gill arches in humans?

Answer 1

6

Question 2

What is girl arch # 1 and what does it form?

Answer 2

Mandibular arch

Forms Jaws

Question 3

What is girl arch # 2 and what does it form?

Answer 3

Hyoid arch

Forms hyoid bone

Question 4

Pharyngeal arch cartilage of upper jaw

Answer 4

Palatopterygoquadrate

From gill arch #1

Question 5

Palatopterygoquadrate forms _?

Answer 5

Alisphenoid

*includes greater wing of sphenoid and spine of sphenoid

Question 6

Pharyngeal arch cartilage of lower jaw

Answer 6

Meckel’s cartilage

Gill arch #1

Question 7

Meckel’s cartilage forms__?

Answer 7

1. Malleus
2. Incus
3. Enclosed remnants of meckel’s cart (in mandible)

Question 8

Pharyngeal arch cartilage of hyoid cartilage

Answer 8

Reichert’s Cartilage

Gill arch #2

Question 9

Reicherts cartilage forms__?

Answer 9

1. Lesser cornu of hyoid
2. stylohyoid ligament
3. styloid process
4. stapes

Question 10

Pharyngeal arch cartilage of 3rd gill arch forms__?

Answer 10

1. Body of hyoid
2. Greater cornu of hyoid

Question 11

Pharyngeal arch cartilage of gill arches 4-6 forms_?

Answer 11

1. Thyroid cartilage
2. Cricoid cartilage

Question 12

What separates gill arches?

Answer 12

clefts and pouches

Question 13

What is b/w gill arches 1 and 2?

Answer 13

Cleft: Ext. acoustic meatus

Pouch: Eustachian tube

Question 14

What occurs to the pouches and clefts other than those b/w 1 + 2?

Answer 14

Clefts shut

Pouches-some form glands in neck:

1. parathyroid
2. Thymus

Question 15

CN I name and travels through_

Answer 15

Olfactory N.

olfactory foramina

Question 16

CN II name and travels through_

Answer 16

Optic N

optic canal

Question 17

CN III travels through_

Answer 17

Superior orbital fissure

Question 18

CN IV travels through_

Answer 18

Superior orbital fissure

Question 19

CN V1 name and travels through_?

Answer 19

Opthalmic N

Superior orbital fissure

Question 20

CN V2 name and travels through_?

Answer 20

Maxillary N

Foramen rotundum

Question 21

CN V3 name and travels through_?

Answer 21

Mandibular N

Foramen Ovale

Question 22

CN VI travels through_?

Answer 22

Superior orbital fissure

Question 23

CN VII travels through_?

Answer 23

Internal acoustic meatus

Question 24

CN VIII travels through_?

Answer 24

Internal acoustic meatus

Question 25

CN IX travels through\_?

Answer 25

Jugular foramen

Question 26

CN X travels through\_?

Answer 26

Jugular Foramen

Question 27

CN XI travels through\_?

Answer 27

Jugular foramen

Question 28

CN XII travels through\_?

Answer 28

Hypoglossal canal

Question 29

What is the only bone in the skull pre-formed in cartilage?

Answer 29

Ethmoid

Question 30

Special sensory nerves?

Answer 30

I, II, VIII

Question 31

Primitive ventral roots?

Answer 31

III, IV, VI, XII

Question 32

Primitive dorsal roots/

Answer 32

V, VII, IX, X, XI

Question 33

CN I name, motor/ sensory, etc.

Answer 33

Olfactory N. Special sensory Special **Somatic** sensory innervation Smell

Question 34

CN II name, motor/ sensory, etc.

Answer 34

Optic N Special sensory Special **Somatic** sensory Vision

Question 35

CN III name, motor/ sensory, etc.

Answer 35

Oculomotor Primitive ventral roots 1. Voluntary motor to somites: most eye mm 2. Parasympathetic motor: sphincter pupillae, ciliary mm

Question 36

CN IV name, motor/ sensory, etc.

Answer 36

Trochlear N Primitive ventral roots Voluntary motor to somites: sup. oblique m

Question 37

CN V name, motor/ sensory, etc.

Answer 37

Trigeminal N Primitive dorsal root 1. Voluntary motor to somitomeres: to arch I mm 2. Somatic sensory: face, oral cavity, ant. 2/3 of tongue

Question 38

CN VI name, motor/ sensory, etc.

Answer 38

Abducens N Primitve ventral roots Voluntary motor to somites: lateral rectus m

Question 39

CN VII name, motor/ sensory, etc.

Answer 39

Facial N Primitive dorsal roots 1. Voluntary motor to somitomeres: arch II mm 2. Parasympathetic motor: lacrimal, submandibular, sublingual glands 3. Somatic sensory: skin by ear 4. Visceral sensory: taste ant 2/3 of tongue

Question 40

CN VIII name, motor/ sensory, etc.

Answer 40

Vestibulocochlear N Special sensory Sensory somatic: Hearing and balance

Question 41

CN IX name, motor/ sensory, etc.

Answer 41

Glossopharyngeal N Primitive dorsal roots Voluntary motor to somitomeres: arch III mm Parasymp motor: parotid gland Somatic sensory: skin by ear General Visceral sensory: Post 1/3 tongue Special visceral sensory: taste post 1/3 tongue

Question 42

CN X name, motor/ sensory, etc.

Answer 42

Vagus N Primitive dorsal roots Voluntary motor to somitomeres: arches IV-VI mm in pharynx, larynx; upper esophagus Parasympathetic motor: gut from mid-esophagus to left colic flexure, heart, lungs Somatic sensory: skin by ear General visceral sensory: gut from pharynx to left colic flexure Special visceral sensory: taste buds in pharynx

Question 43

CN XI name, motor/ sensory, etc.

Answer 43

Accessory N Primitive dorsal roots Voluntary motor to somitomeres: arches IV-VI mm, sternocleidomastoid, trapezius

Question 44

CN XII name, motor/ sensory, etc.

Answer 44

Hypoglossal N Primitive ventral roots Voluntary motor to somites: tongue mm

Question 45

Layers of scalp

Answer 45

S-skin C-CT hypodermis A-aponeurosis (epicranial) aka galea aponeurotica L-loose CT P-pericranium or periosteum of skull

Question 46

Layout of sensory/motor columns in spinal cord

Answer 46

Somatic sensory Visceral sensory Visceral motor Somatic motor

Question 47

Visceral motor **symp** neurons run from\_?

Answer 47

T1-L2

Question 48

Visceral motor **parasymp** neurons run from\_?

Answer 48

S2-S4

Question 49

What is an epidural hematoma?

Answer 49

When blood collects between skull and true/meningeal dura

Question 50

What is a subdermal hematoma?

Answer 50

When blood collects between true/meningeal dura and arachnoid mater.

Question 51

Where can you find CSF?

Answer 51

Subarachnoid space