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Flashcards in Section 1 Deck (51):
1

# of gill arches in humans?

6

2

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

Mandibular arch

Forms Jaws

3

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

Hyoid arch

Forms hyoid bone

4

Pharyngeal arch cartilage of upper jaw

Palatopterygoquadrate

From gill arch #1

5

Palatopterygoquadrate forms _?

 

Alisphenoid

*includes greater wing of sphenoid and spine of sphenoid

6

 

Pharyngeal arch cartilage of lower jaw

Meckel's cartilage

Gill arch #1

7

Meckel's cartilage forms__?

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

8

Pharyngeal arch cartilage of hyoid cartilage

Reichert's Cartilage

Gill arch #2

 

9

Reicherts cartilage forms__?

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

10

Pharyngeal arch cartilage of 3rd gill arch forms__?

  1. Body of hyoid
  2. Greater cornu of hyoid

11

Pharyngeal arch cartilage of gill arches 4-6 forms_?

  1. Thyroid cartilage
  2. Cricoid cartilage

12

What separates gill arches?

clefts and pouches

13

What is b/w gill arches 1 and 2?

Cleft: Ext. acoustic meatus

Pouch: Eustachian tube

14

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

Clefts shut

Pouches-some form glands in neck:

  1. parathyroid
  2. Thymus

15

CN I name and travels through_

Olfactory N.

olfactory foramina

16

CN II name  and travels through_

Optic N

optic canal

17

CN III travels through_

 

Superior orbital fissure

18

CN IV travels through_

Superior orbital fissure

19

CN V1 name and travels through_?

Opthalmic N

Superior orbital fissure

20

CN V2 name and  travels through_?

Maxillary N

Foramen rotundum

21

CN V3 name and travels through_?

Mandibular N

Foramen Ovale

22

CN VI travels through_?

Superior orbital fissure

23

CN VII travels through_?

Internal acoustic meatus

24

CN VIII travels through_?

Internal acoustic meatus

25

CN IX travels through_?

Jugular foramen

26

CN X travels through_?

Jugular Foramen

27

CN XI travels through_?

Jugular foramen

28

CN XII travels through_?

Hypoglossal canal

29

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

Ethmoid

30

Special sensory nerves?

I, II, VIII

31

Primitive ventral roots?

III, IV, VI, XII

32

Primitive dorsal roots/

V, VII, IX, X, XI

33

CN I name, motor/ sensory, etc.

Olfactory N.

Special sensory

Special Somatic sensory innervation

Smell

34

CN II name, motor/ sensory, etc.

Optic N

Special sensory

Special Somatic sensory

Vision

35

CN III name, motor/ sensory, etc.

Oculomotor

Primitive ventral roots

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

36

CN IV name, motor/ sensory, etc.

Trochlear N

Primitive ventral roots

Voluntary motor to somites: sup. oblique m

37

CN V name, motor/ sensory, etc.

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

38

CN VI name, motor/ sensory, etc.

Abducens N

Primitve ventral roots

Voluntary motor to somites: lateral rectus m

39

CN VII name, motor/ sensory, etc.

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

40

CN VIII name, motor/ sensory, etc.

Vestibulocochlear N

Special sensory

Sensory somatic: Hearing and balance

41

CN IX name, motor/ sensory, etc.

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

42

CN X name, motor/ sensory, etc.

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

 

43

CN XI name, motor/ sensory, etc.

Accessory N

Primitive dorsal roots

Voluntary motor to somitomeres: arches IV-VI mm, sternocleidomastoid, trapezius

 

44

CN XII name, motor/ sensory, etc.

Hypoglossal N

Primitive ventral roots

Voluntary motor to somites: tongue mm

45

Layers of scalp

S-skin

C-CT hypodermis

A-aponeurosis (epicranial) aka galea aponeurotica

L-loose CT

P-pericranium or periosteum of skull

46

Layout of sensory/motor columns in spinal cord

Somatic sensory

Visceral sensory

Visceral motor

Somatic motor

47

Visceral motor symp neurons run from_?

T1-L2

48

Visceral motor parasymp neurons run from_?

S2-S4

49

What is an epidural hematoma?

When blood collects between skull and true/meningeal dura

50

What is a subdermal hematoma?

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

51

Where can you find CSF?

Subarachnoid space