Brainscape's Knowledge GenomeTM

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


See full index

My cards > Neuro 3 - Skull, orbit, ear > Flashcards

Neuro 3 - Skull, orbit, ear Flashcards

1
Q

Name the bones of the skull

A
  • frontal
  • parietal
  • occipital
  • temporal
  • sphenoid
  • ethmoid
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name the foramina in the skull

A
  • ethmoidal foramina
  • optic canal
  • superior orbital fissure
  • foramen rotundum
  • foramen spinosum
  • foramen ovale
  • foramen lacerum
  • jugular foramen
  • hypoglossal canal
  • foramen magnum
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What passes through foramen magnum?

A
  • vertebral arteries
  • anterior and posterior spinal arteries
  • spinal cord
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What blood vessels passes through the ethmoidal foramina?

A

ethmoidal artery and vein

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

What passes through the optic canal?

A

CN II and ophthalmic artery

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

What passes though the SOF?

A

Superior ophthalmic vein and CN III, IV, V1, VI

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

What passes through the foramen rotundum?

A

CN V2

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

What passes through foramen ovale?

A

CN V3

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

Where do CN VII and VIII exit the skull from?

A

internal acoustic meatus

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

Apart from the cranial nerves, what passes through the IAM?

A

labrynthine artery

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

Through which foramen do the internal carotids enter the skull?

A

foramen lacerum

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

Which vessel can be found in the foramen spinosum?

A

middle meningeal artery

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

What passes through the hypoglossal canal?

A

CN XII - hypoglossal

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

What passes through the jugular foramen?

A

CN IX, X, XI and jugular veins

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

Which muscle opens the eyelid?

A

levator palpabrae superioris

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

The superior and inferior tarsals do what?

A

provides structural support to the eyelid

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

Name the extraoccular muscles

A
  • LPS
  • SO, IO
  • SR, IR, LR, MR
18
Q

Nerve supply of superior oblique?

A

trochlear nerve CN IV

19
Q

Which one of the recti muscles are not supplied by the occulomotor nerve?

A

lateral rectus - supplied by abducens CN VI

20
Q

Which EOM muscles have an isolated action?

A

lateral and medial recti

21
Q

What does the superior rectus do?

A

elevates, abducts and intorts eye

22
Q

What does the inferior oblique do?

A

elevates, abducts and extorts eye

23
Q

What does the superior oblique do?

A

depresses, abducts, intorts eye

24
Q

Blood supply to the eye and retina?

A

eye: ophthalmic artery
retina: central artery of the retina

25
Q

3 layers of the eye

A
  • outer: sclera, cornea
  • middle: choroid, ciliary body, iris
  • inner: retina
26
Q

Where are tears produced?

A

lacrimal gland

27
Q

What is the lacrimal sac?

A

upper dilated end of nasolacrimal duct

28
Q

What carries tears from the eyes the nose?

A

nasolacrimal duct - drains tears into inferior meatus

29
Q

What is the retina?

A

light sensitive region lining the back of the eye - contains photoreceptors

30
Q

Where is the blind spot?

A

where optic nerve and retinal blood supply pierce the retina - LACKS PHOTORECEPTORS

31
Q

What focuses light onto the retina?

A

lens

32
Q

What part of the eye has the highest visual acuity?

A

macula lutea

33
Q

What controls the amount of light entering the eye?

A

iris

34
Q

Venous drainage of the eyeball

A

superior/inferior ophthalmic veins - drain into the cavernous sinus

35
Q

3 parts of the ear

A
  • outer: pinna, external acoustic meatus and canal
  • middle: tympanic membrane, ossicles, Eustachian tube
    inner: semi circular canals, vestibule, cochlea
36
Q

What is the middle ear and what does it contain?

A

air filled cavity in the temporal bone containing tympanic membrane, ossicles and Eustachian tube

37
Q

What do the ossicles do?

A

convert vibrations of the eardrum into amplified pressure waves

38
Q

Which muscles contract in response to loud sounds to reduce transmission of sound to the inner ear?

A

stapedius and tensor tympani

39
Q

Which part of the ear is responsible for sound detection and balance?

A

inner ear

40
Q

Which geniculate ganglion is receives auditory info?

A

medial geniculate ganglion

My cards (18 decks)

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