Brainscape's Knowledge GenomeTM

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


See full index

Gross Anatomy > Temporal Region And Orbit > Flashcards

Temporal Region And Orbit Flashcards

1
Q

Temporal region boundaries

A

Superior: Superior temporal line

Anterior: Frontal process zygomatic bone

Inferior: Zygomatic arch

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

Temporal region contents

A
  • Tempralis
  • Deep temporal branch V3
  • Deep temporal branch of Maxilary Aa
  • Auriculotemporal nerve
  • Superficial temporal arch ECA
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Infratemporal fossa contents

A
  • Lower border temporalis
  • Lateral/medial Pterygoid
  • Maxillary aa
  • Maxillary nerve
  • Mandibular nerve
  • Optic Ganglion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Pterygoid Latina fossa contents

A
  • Maxillary n.
  • Maxillary aa
  • Pterygopalatine ganglion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the branches of CN V2?

A
  • Meningeal branch
  • Communicating branch to pterygopalatine ganglion
  • Superior alveolar
  • Zygomatic
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where does the maxillary artery end?

A

Sphenopalatine (Mucous membrane of nasal cavity and septum

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

How does the Maxillary vein terminate?

A

Joins the superficial enteral vein in the Parotid gland to form the retromandibular vein

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

What forms the roof of the orbit?

A

Lesser wing Sphenoid

Frontal bone

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

What forms the Lateral Wall Orbit?

A

Zygomatic process frontal bone

Greater Wing Sphenoid

brutal surface Zygomatic

Inferior Orbital fissure

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

What forms Medial wall of Orbit

A

Frontal Process Maxilla

Lacrimal Bone

Lateral mass of ethmoid

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

What forms floor of Orbit?

A

Perpendicular plate Palatine Bone

Orbital surface Maxilla

Zygomatic bone

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

What is a Blowout fracture?

A

Indirect ramus which displaces the orbital walls of the orbit

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

Exophthalmos

A

Orbital fracture causes Infraorbital bleeding and pressure which pushes on Eyeball

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

Periorbital Ecchymosis

A

Direct blow toperiorbital region causing swelling and hemorrhage into eyelids and extravasation of blood into periorbital skin

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

What maintains the shape and rigidity of the eyelids?

A

Tarsal plates

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

What originates and inserts onto the medial palpebral ligament?

A

Orbicularis Oculi

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

What attaches to the lateral palpebral ligament?

A

Nothing

18
Q

Innervation of upper vs lower eyelid

A

Sensory
Upper - CN V1
Lower CN V2

Motor
CN VII Orbicularis Oculi
CN III Levator Palpebrae Superioris

19
Q

Sty

Chalazia

Chalazion

A

Sty - Obstruction of ciliary gland (Of Zeus) causing painful, suppurations swelling

Chalazia - Cyst Of sebaceous gland of eyelids

Chalazion - Obstruction of tarsal glands which produce inflammation which protrudes and ribs cornea

20
Q

Sub conjunctival Hemorrhage

A
  • Bright/dark red patches deep to and in bulbar conjunctiva

- caused by Direct blow to eye, excessive blowing of nose, PAROXYSM of coughing, or violent sneezing

21
Q

Damage to which CN results in ptosis?

A

CN III Oculomotor —> Levator Palpebrae superiorus

22
Q

What occurs due to CN VII damage to eyes?

A

Inability to voluntarily close eyelids tightly and lower eyelid droops (Ectropy) and spillage of tears (Epiphora)

23
Q

Where does the nasolacrimal duct drain?

A

Into the inferior nasal meatus

24
Q

Optic Papilla Disc

A

slightly elevated region posterior to the eye, just medial to the posterior pole
✧Site at which the optic nerve exits. It
contains no photoreceptors - it is a “blind
spot” ✧The branches of the central retinal vessels
radiate out from the optic papilla. ✧The retina is most adherent to the optic
papilla.

25
Q

What is normal IOP?

A

10-21 mmHg (~16)

26
Q

Macula lutes

A

Yellow spot located lateral to optic papilla

27
Q

Flame shaped arteries, blot hemorrhages, cotton wool spots, and hard exudates

A

Weigh Wagner Grade 3 Hypertensve retinopathy

28
Q

Anterior tacked portion of the choroid

A

Ciliary Body

29
Q

What innervates the Ciliary muscles?

A

Parasympathetic Nerves from oculomotor nerve via the ciliary ganglion

30
Q

a medical condition of the iris of the eye in which new abnormal blood vessels (i.e. neovascularization) are found on the surface of the iris. This condition is often associated with diabetes in advanced proliferative diabetic retinopathy

A

Rubeosus Iridis

31
Q

✧Disease characterized by an increased
intracoular pressure (IOP > 22 mmHg). ✧It results from increased production or
diminished reabsorption of aqueous
humor.

A

Glaucoma

32
Q

✧Small opacities within the lens that, over

time, may coalesce to completely obscure the lens.

A

Cataracts

33
Q

CN VI damage eye

A

Lateral rectus —> Abduction

34
Q

CN IV damage eye

A

Superior obliques —> Depression and intorsion of eye

35
Q

Branches of CN V1

A
  1. Lacrimal - Skin on lateral upper eyelid
  2. Frontal nerve —> Supraorbital and supratrochlear
  3. Nasociliary —> Enters orbit via superior orbital fissure
36
Q

Oculomotor components

A

Somatic Motor —> Other Muscles of eye

Visceral motor —> Parasympathetic to constrictor puplillae and ciliary muscles

37
Q

Ganglia/nuclei of CN III

A

Ringer Westphal Nucleus

Ciliary ganglion

38
Q

Testing CN IV Palsy

A

Pt tilts head to unaffected side and obtains binocular vision

39
Q

Test for CN VI Palsy

A

Patients with CN VI palsy experience Strabismus resulting in Diplopia

When head is turned to side of lesion, binocular vision is restored

40
Q

Positioning of the ciliary ganglion

A

Lateral to Optic Nerve

Medial to Lateral rectus

41
Q

Which structure is closely associated with sympathetic fibers from the sympathetic ciliary ganglion?

A

Internal Carotid Artery

Gross Anatomy (24 decks)

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