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Anatomy NWHSU > GA2: Eye, ear, MoM, Heart, A&V > Flashcards

GA2: Eye, ear, MoM, Heart, A&V Flashcards

1
Q

This artery enters the orbit by passing through the optic foramen below the optic nerve, typically running next to the lateral rectus muscle.

A

Ophthalmic a

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2
Q

Name the 4 portions of the ICA

A

Cervical
Petrous
Cavernous
Cerebral

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3
Q

What percentage of blood is supplied to the brain by internal carotid artery.

A

80-90%

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4
Q

This dilation functions to regulate systemic blood pressure a the origin of the ICA

A

Carotid Sinus

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5
Q

This section of the the ICA is found within bone.

A

Petrous

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6
Q

The three boundaries of the carotid triangle are:

A

Superior belly of Omohyoid
Posterior belly of digastric & sylohyoid
SCM

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7
Q

What portion of the Internal Carotid Artery is one likely to hear their own heart beat?

A

Petrous

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8
Q

What are the two branches off of the ICA in the Petrous portion?

A

Caroticotympanic aa.
Artery of the Pterygoid canal

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9
Q

If ones eye looks down and out and fails to return to neutral, what Nerve is effected?

A

Abducens N. (CN VI)

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10
Q

If ones eye looks down and out and fails to return to neutral, what is the likely cause?

A

Pressure on CNVI as a result of aneurysm of the ICA in the Cavernous portion.

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11
Q

Three branches of arteries in the cavernous portion of the ICA are:

A

Cavernous
Hypophyseal
Meningeal

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12
Q

What are the two terminal branches located in the cerebral portion of the ICA

A

anterior cerebral artery
Middle cerebral artery

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13
Q

The cerebral portion of the ICA begins medial to what bone in the skull?

A

Sphenoid bone
(anterior crinoid process)

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14
Q

The 5 arterial branches in the cerebral portion of the ICA are:

A

Anterior Cerebral
Middle Cerebral
Posterior communicating
Ophthalmic
Choroidal

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15
Q

What is the largest branch in the ICA that forms an anastomoses with the anterior and posterior cerebral arteries?

A

Middle Cerebral artery

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16
Q

Which artery is found on the lateral surface of temporal, frontal and partial lobes?

A

Middle cerebral artery (MCA)

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17
Q

What artery is the most common location for the source of a TIA or stroke?

A

Middle Cerebral artery

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18
Q

What is the medical name for the Circle of Willis?

A

Circulus anteriosus

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19
Q

Circle of willis is found at the base of the Brain in the interpeduncular fossa that encircles what two parts of the brain?

A

Optic Chiasma
Pituitary Gland

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20
Q

The first part of the subclavian artery has three branches. Name those branches.

A

Vertebral a.
Internal thoracic a.
Thyrocervical trunk

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21
Q

Name the artery that branches off the second part of the subclavian a.

A

Costocervical trunk

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22
Q

The costocervical trunk divides into two arteries. Name them.

A

Superior intercostal a.
Deep cervical a.

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23
Q

The third part of the subclavian branches into this artery and runs with a nerve of the same name. What is that artery?

A

Dorasl scapular artery
(dorsal scapular nerve)

24
Q

The internal jugular vein has 6-7 tributaries, what are they?

A

Inferior Petrosal sinus
Pharyngeal
Common facial
Lingual
superior thyroid
Middle Thyroid
(occipital)

25
Q

Name the three tributaries of the external jugular vein:

A

Transverse cervical
Superascapular
anterior jugular

26
Q

IPCLSM(O)

A

Inferior Petrosal sinus
Pharyngeal
Common facial
Lingual
superior thyroid
Middle Thyroid
(occipital)

27
Q

SALFOPSM

A

Superior thyroid
Ascending Pharyngeal
Lingual
Facial
Occipital
Posterior Auricular
Superficial Temporal
Maxilla

28
Q

1

A

Superior & Inferior Vena Cava

29
Q

2, 3, & 4

A

Right Atrium
Tricuspid
Right Ventricle

30
Q

5

A

Pulmonary semi-lunar valve

31
Q

6.

A

Pulmonary Artery
(via pulmonary semi lunar valve)

32
Q

7

A

Pulmonary Veins (via Lungs)

33
Q

8, 9, 10

A

Left Atrium
Bicuspid (mitral)
Left Ventricle

34
Q

11

A

Aorta semi Lunar valve

35
Q

12

A

Aorta

35
Q

12

A

Aorta

36
Q

The SA node in the heart is referred to as what?

A

Pacemaker

37
Q

The AV node in the heart is referred to as what?

A

Gate Keeper

38
Q

The Fossa Ovalis developed from what part of the fetal heart?

A

Foramen Ovale

39
Q

This structure developed as the ducts arteriosus in the fetal heart. What is it?

A

Ligamentum anteriosum

40
Q

What Cranial Nerves innervate the eye?

A

CN: 2, 3, 4, 5, 6, 7

41
Q

What is the name for “the organ of hearing”?

A

Spiral organ of Corti

42
Q

Name the 4 contents of the Tympanic Cavity. (Middle ear)

A

Ossicles (Malleus, Incus, Stapes)
Oval Window
Round window
Tensor Tympani
Stapedius
Chorda Tympani

43
Q

What is the hollowed-out fluid filled pathway located in the inner ear?

A

Osseous Labyrinth

44
Q

The fibrous layer of the eye is comprised of two structures: what are they?

A

Sclera & Cornea

45
Q

What part of the eye is responsible of the most refraction of light?

A

Cornea

46
Q

This area of the inner eye lacks rods and cones, known as the “blind spot” - what is it called?

A

Optic disc

47
Q

What area of the eye consists of only specialized cones for visual acuity?

A

Macula lutea

48
Q

Name the order of they eye from superficial to deep. (11 structures)

A

Cornea Epithelium
Cornea
Anterior Chamber
Pupil (dilator pupil)
posterior chamber
Aqueous humor
Canal of Schlemm
Lens
Vitreous body
Choroid
Retina

49
Q

What is damaged when one begins to experience macular degeneration?

A

Fovea Centralis

50
Q

Name the muscle and Nerve associated:
1.

A

Superior Oblique
CN IV (Trochlear)
abducts, depress, med. rotate

51
Q

Name the muscle and Nerve associated:
2.
5.
6.

A

All three: CN III - Oculomotor
2. Superior Rectus
( Adduct, Elevate, Med. Rotate)
5. Inferior Rectus
(Adduct, depress, Lat. Rotate)
6 Medial Recuts

52
Q

Name the muscle and Nerve associated:
3.

A

Lateral Rectus
CN VI (abducens)
Abduct

53
Q

Name the muscle and Nerve associated:
4.

A

Inferior Oblique
CN III (Oculomotor)
(abduct, elevate, lat. rotate)

53
Q

Lateral Rectus is the first to show symptoms of:

A

DM, MS, Caratid Artery
“H” Pattern - “out and Down”

Anatomy NWHSU (8 decks)

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