Day 15 (pg 207)

Question 1

What nerve(s) provide motor innervation to the scalp?

Answer 1

facial nerve branches

Question 2

What is the embryonic origin of skeletal muscles innervated by the facial nerve?

Answer 2

the skeletal muscle is derived from the branchial arches hence branchial efferent

Question 3

What is the third layer of the scalp associated with?

Answer 3

muscular component of the scalp

Question 4

What muscle(s) are specifically associated with the scalp?

Answer 4

frontalis and occipitals bellies of the epicranius muscle

Question 5

The bellies of the epicranius muscle are connected by what structure?

Answer 5

galea aponeurotica

Question 6

What is the fourth layer of the scalp

Answer 6

loose connective tissue layer

Question 7

What is the fifth layer of the scalp?

Answer 7

pericranium

Question 8

Which muscles lack any attachment to bone?

Answer 8

orbicularis oris, procerus & risorius

Question 9

Which divisions of the trigeminal nerve receive sensory information from the face?

Answer 9

all 3 divisions: ophthalmic nerve, maxillary nerve & mandibular nerve

Question 10

What landmark forms the apex of the orbit?

Answer 10

convergence of the superior orbital fissure and inferior orbital fissure

Question 11

What opening(s) are located along the superior wall of the orbit?

Answer 11

optic canal

Question 12

What are the contents of the optic canal?

Answer 12

optic nerve & ophthalmic artery

Question 13

What bones form the medial wall of the orbit?

Answer 13

ethmoid, frontal, lacrimal & sphenoid bones

Question 14

What are the openings located along the medial wall of the orbit?

Answer 14

anterior ethmoid & posterior ethmoid foramina

Question 15

What is the name given to the medial wall of orbit?

Answer 15

lamina papyracea

Question 16

What opening(s) are located along the lateral wall of the orbit?

Answer 16

superior orbital fissure

Question 17

What opening(s) are located along the inferior wall of the orbit?

Answer 17

inferior orbital fissure

Question 18

What is contained in the inferior orbital fissure?

Answer 18

maxillary division of trigeminal nerve

Question 19

What are the layers of the eyelid?

Answer 19

skin, orbicularis oculi muscle, tarsal plate/tarsus & palbebral conjunctiva

Question 20

What are the names given to the modified sebaceous gland in the tarsus of the eyelid?

Answer 20

tarsal or Meibomian gland

Question 21

What is the location of a Meibomian gland?

Answer 21

tarsus of the eyelid

Question 22

What is the name of the modified sebaceous gland at the base of the eyelash?

Answer 22

ciliary gland

Question 23

What are the parts of the lacrimal gland

Answer 23

orbital and palpebral parts

Question 24

The lacrimal gland is an example of what classification of gland?

Answer 24

exocrine gland

Question 25

What is the single common characteristic of exocrine glands?

Answer 25

ducts drain product from the secretory units of the gland

Question 26

Into what location will the lacrimal gland ducts open?

Answer 26

superior fornix

Question 27

What is the drainage pattern of tears?

Answer 27

lacrimal punctum, lacrimal canaliculus, lacrimal sac, nasolacrimal duct & inferior nasal meatus

Question 28

Which visceral efferent (VE) pathway is conveyed in the seventh cranial nerve?

Answer 28

a parasympathetic motor pathway