Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Head and Neck > Orbit 1 > Flashcards

Orbit 1 Flashcards

1
Q

Roof of the orbit is ____

A

horizontal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Roof is mostly formed by?

A

Orbital part of frontal bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

At the supraorbital margin, supraorbital notch or foramen transmits the ____ ____ of the ____ n.

A

supraorbital branch of the frontal n

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Shallow depression anterolaterally, _____ ____ - for ____ gland

A

lacrimal fossa - lacrimal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The floor is mainly?

A

Maxilla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Maxilla contains?

A

Infraorbital groove
Infraorbital canal
Infraorbital foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What structure is paper-thin portion of ethmoid bone that separates the orbit from underlying ethmoid cells?

A

Lamina Papyracea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Lacrimal groove is located in which wall of the orbit?

A

Medial wall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The upper and lower eyelids contain a dense connective tissue called?

A

Tarsal plate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The name of the enclosed potential space of the eyelids is called?

A

Conjunctival sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Superior and inferior tarsal plates merge to form?

A

Medial and lateral palpebral ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Facial sheet that attaches the tarsal plates to the inferior and superior orbital margins?

A

Orbital septum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Levator palpebrae superioris muscle is innervated by?

A

Superior division of the oculomotor nerve (CN III)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Paralysis produces ____ or ____, with inability to lift the eyelid.

A

ptosis or blepharoptosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Superior tarsal muscle is AKA

**small and seperate portion of the levator palpebral superioris m

A

Muller’s muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Contraction of the Superioris tarsal muscle accentuates the opening of the palpebral fissure as?

A

Wide-eyed fear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Innervation of the Superioris tarsal muscle?

A

Sympathetic division of the autonomic nervous system

18
Q

Lack of muscle tone because of decreased sympathetic activity or decreased circulating levels of EPINEPHRINE results in difficulty keeping eyes open “(____ ____)”.

A

tired eyes

19
Q

Lesion of the Superior tarsal muscle?

Causes paralysis of this muscle with a slight drooping of the eyelid called?

A

Horner’s syndrome

Pseudoptosis

20
Q

How many layers do the eyelids have?

A

7

21
Q

Skin of the eyelids contain what type of glands?

A

sweat and sebaceous glands

22
Q

Sebaceous glands associated with eyelashes are known as?

A

ciliary glands

23
Q

Obstruction of these glands results in a?

A

Stye

24
Q

A ____ is a rather painful condition in which the ducts of these glands become blocked.

A

Chalazion

25
Q

Lacrimal ducts drain into the?

A

Superior fornix

26
Q

Vasodilation in response to allergy, irritation or inflammation produces?

A

Bloodshot eye and pinkeye

27
Q

Bulbar (corneal) conjunctiva is innervated by which CN?

A

Ophthalmic division of Trigeminal N

28
Q

Which reflex allows to test afferent portion of CN V and efferent portion of CN VII

A

Corneal (blink) reflex

29
Q

Name the triangular area at the medial canthus where the tears collect?

A

Lacus lacrimalis (L.)

30
Q

Lacrimal lake is enclosed by?

A

Plica semilunaris

**In some animals known as the 3rd eyelid

31
Q

Name of the fleshy elevation seen in the medial angle of the eye within the lacrimal lake.

A

Lacrimal caruncle

32
Q

Orfice of the lacrimal apparatus is formed by small lacrimal papilla with an apical?

A

lacrimal punctum

33
Q

Preganglionic parasympathetic fibers conveyed from ____ ____ by the ____ ____ ____ and then by the nerve of ____ ____ to the ____ ____.

A

facial nerve/ greater petrosal nerve/pterygoid canal/pterygopalatine ganglion

34
Q

Postganglionic parasympathetic fibers travel with ____ n (from ____ n of __) to the lacrimal branch of the ____ n __.

A

zygomaticotemporal n (from maxillary nerve V2)/ ophthalmic nerve VI

35
Q

Are there any synapses in the geniculate ganglion?

A

NO

36
Q

Greater petrosal n =

A

Preganglionic Parasympathetic (VII)

37
Q

Deep petrosal n =

A

PostG Symp (TI)

38
Q

Lesser petrosal n =

A

PregPara (IX)

39
Q

Postganglionic sympathetics fibers travel with ____ ____ ____ and ____ ____ n; join the parasympathetic fibers to form the ____ of ____ ____ and traverse the nerve ____ ____ (without synapsing).

A

internal carotid plexus and deep petrosal nerve; nerve of pterygoid canal; ptheygopalatine ganglion

40
Q

Miosis =

Dilator pupillae*

A

chronic constricted pupil

41
Q

Anhydrosis =

A

not able to sweat on affected side

42
Q

Red/Flushed due to?

A

Chronic vasodilation

Head and Neck (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions