Scalp, Face, the Orbit, and Internal Orbital Features: Lacrimal Gland Flashcards Preview

Spinal Exam 3 > Scalp, Face, the Orbit, and Internal Orbital Features: Lacrimal Gland > Flashcards

Flashcards in Scalp, Face, the Orbit, and Internal Orbital Features: Lacrimal Gland Deck (30)
Loading flashcards...
1
Q

What can the five layers of the scalp spell?

A

Skin, Connective tissue, Aponeurosis, Loose Connective Tissue, Periosteum…SCALP

2
Q

What are the principal sources of blood to the scalp?

A

internal carotid and external carotid artery branches

3
Q

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

A

all 3 divisions; ophthalmic, maxillary, and madibular nerves

4
Q

Which ventral rami nerves(s) and cord levels of origin supply the scalp?

A

greater auricular nerve-C2, C3 ventral rami branches; lesser occipital nerve-C2, C3 communicating ramus

5
Q

Which dorsal ramus nerve branch (name and cord level of origin) suppliesthe scalp?

A

greater occipital nerve-C2, C3 comminicating ramus

6
Q

Which muscleslack any attachment to bone?

A

orbicularis oris, procerus and risorius

7
Q

What type of motor fibers to skeletal muscle are given off by the facial nerve?

A

branchial effect (BE)

8
Q

Most of the seventh cranial nerve will exit the skull via what opening?

A

the stylomastoid foramen

9
Q

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

A

all 3 divisions; ophthalmic nerve, maxillary nerve and mandibular nerve

10
Q

The optic canal is located along which wall of the orbit?

A

superior wall of the orbit

11
Q

What are the contents of the optic canal?

A

optic nerve and ophthalmic artery

12
Q

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

A

anterior and posterior ethmoid foramina

13
Q

What is the name givento the medial wall of the orbit?

A

lamina papyracea

14
Q

The superior orbital fissure is located along which wall ofthe orbit?

A

lateral wall of the orbit

15
Q

What are the contents of the superior orbital fissure?

A

oculomotor, trochlear, and abducent/abducens cranial nerves ophthalmic division of the trigeminal cranial nerve and opthalmic veins

16
Q

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

A

inferior orbital fissure

17
Q

What is contained in the inferior orbital fissure?

A

maxillary division of the trigeminal nerve

18
Q

Identify the opening(s) found along each wall of the orbit

A

superior wall; optic canal
medial wall; anterior and posterior ethmoid foramina
lateral wall; superior orbital fissure
inferior wall; inferior orbital fissure

19
Q

Which cranial nerves are involved in the Visceral Efferent (VE) parasympathetic pathway to the lacrimal gland?

A

facial and trigeminal (maxillary and opthalmic disvisions/branches)

20
Q

Parasympathetic stimulation of blood vessels in the lacrimal gland will result in what events?

A

vasodilation of blood vessels, increased availability of water to secretory units, thinner or more watery product in lumen

21
Q

What do Somatic Afferent (SA) pathways monitor?

A

pain, temperature, light touch and proprioception

22
Q

Which divisions of the trigeminal nerve contain somatic afferent (SA) pathways?

A

all three

23
Q

What are the layers of the eyelid?

A

skin, orbicularis oculi muscle, tarsal plate/tarsus and palpebral conjunctiva

24
Q

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

A

tarsal or Meibomian gland

25
Q

Preganglionic visceral efferent fibers of cranial nerve VII will exit the pons in what nerve?

A

nervus intermedius. nerve of Wrisberg, sensory root of facial nerve

26
Q

Visceral Efferent (VE) pathways innervate what structures?

A

smooth mucsle, cardiac muscle, and glandular tissue

27
Q

What is the origin for the sympathetic pathway to the lacrimal gland?

A

lateral horn/intermediolateral cell column T1, T2

28
Q

What is the target of the preganglionic sympathetic visceral efferent (VE) fiber in the pathway to the lacrimal gland?

A

the VE fiber ascends to the superior cervical ganglion to synapse

29
Q

Sympathetic stimulation of the lacrimal gland will result in what events?

A

vasoconstriction of blood vessels, limited availability of water to secretory units, more viscous or thicker product formed in the glandular lumen

30
Q

Parasympathetic stimulation of targets in the lacrimal gland will result in what events?

A

vasodilation of blood vessels, increased availability of water to secretory units, thinner or more watery product in lumen; constriction of myoepithelial cells leading to release of product from secretory lumen into duct sytem

Decks in Spinal Exam 3 Class (32):