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Anatomy II > Exam 3: Eye, Ear, Etc lecture ii > Flashcards

Exam 3: Eye, Ear, Etc lecture ii Flashcards

1
Q

extrinsic eye muscles: superior rectus origin

A

from common tendinous ring

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2
Q

extrinsic eye muscles: superior rectus insertion

A

to sclera

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3
Q

extrinsic eye muscles: superior rectus innervation

A

oculomotor nerve

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4
Q

extrinsic eye muscles: superior rectus action

A

ELEVATE, adduct, and rotate eyeball

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5
Q

extrinsic eye muscles: superior rectus: the common tendinous ring is formed by the origin of the four _ and encircles the sheath of the _ nerve and branches of other nerves

A

recti muscles, optic nerve

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6
Q

extrinsic eye muscles: inferior rectus origin

A

from common tendinous ring

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7
Q

extrinsic eye muscles: inferior rectus insertion

A

to sclera

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8
Q

extrinsic eye muscles: inferior rectus innervation

A

oculomotor nerve

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9
Q

extrinsic eye muscles: inferior rectus action

A

DEPRESS, adduct, and rotate eyeball laterally

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10
Q

extrinsic eye muscles: medial rectus origin

A

from common tendinous ring

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11
Q

extrinsic eye muscles: medial rectus insertion

A

to sclera

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12
Q

extrinsic eye muscles: medial rectus innervation

A

oculomotor nerve

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13
Q

extrinsic eye muscles: medial rectus action

A

adducts eyeball

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14
Q

extrinsic eye muscles: lateral rectus origin

A

from common tendinous ring

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15
Q

extrinsic eye muscles: lateral rectus insertion

A

to sclera

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16
Q

extrinsic eye muscles: lateral rectus innervation

A

abducent nerve

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17
Q

extrinsic eye muscles: lateral rectus action

A

abducts eyeball

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18
Q

extrinsic eye muscles: superior oblique origin

A

from sphenoid

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19
Q

extrinsic eye muscles: superior oblique origin made possible via a tendon that passes through a pulleylike _ and changes direction

A

trochlea

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20
Q

extrinsic eye muscles: superior oblique insertion

A

to superolateral sclera

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21
Q

extrinsic eye muscles: superior oblique innervation

A

trochlear nerve

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22
Q

extrinsic eye muscles: superior oblique action

A

abduct, depress, and MEDIALLY ROTATES eyeball

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23
Q

extrinsic eye muscles: inferior oblique origin

A

from anterior orbital floor

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24
Q

extrinsic eye muscles: inferior oblique insertion

A

to sclera

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25
Q

extrinsic eye muscles: inferior oblique innervation

A

oculomotor nerve

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26
Q

extrinsic eye muscles: inferior oblique action

A

abduct, elevate, and LATERALLY ROTATES eyeball

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27
Q

extrinsic eye muscles: LR6SO4AO3 mnemonic for eye muscles and innervation

A

lateral rectus cranial nerve 6 (abducent)
superior oblique cranial nerve 4 (trochlear)
all other cranial nerve 3 (oculomotor)

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28
Q

lower jaw movement/chewing muscles: masseter origin

A

from zygomatic arch

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29
Q

lower jaw movement/chewing muscles: masseter insertion

A

to angle and ramus of mandible

30
Q

lower jaw movement/chewing muscles: masseter innervation (and CN #)

A

massenteric branches of mandibular nerve (CN V3)

31
Q

lower jaw movement/chewing muscles: masseter action

A

elevates mandible, closing jaws

32
Q

lower jaw movement/chewing muscles: temporalis origin

A

from bones forming floor of temporal fossa

33
Q

lower jaw movement/chewing muscles: temporalis insertion

A

to coronoid process of mandible

34
Q

lower jaw movement/chewing muscles: temporalis innervation (and CN #)

A

mandibular nerve (CN V3)

35
Q

lower jaw movement/chewing muscles: temporalis action

A

elevates mandible

36
Q

chewing muscles of the infratemporal fossa: the infratemporal fossa also contains the _ and _ muscles, which move the mandible in complex ways

A

medial and lateral pterygoid (moves mandible)

37
Q

temporomandibular joint (TMJ) structural classification

A

synovial; hinge (modified)

38
Q

temporomandibular joint (TMJ) articular surfaces involved:

A

mandibular fossa of temporal bone and head of the condylar process of the mandible

39
Q

teeth: contained in the strong _ parts of the maxilla and mandible

A

alveolar

40
Q

teeth: crown projects from the _

A

projects from the gingiva (gum)

41
Q

teeth: root(s) anchored in tooth sockets by a connective tissue structure, the _

A

periodontium

42
Q

teeth: neck btwn _ and _

A

crown and root

43
Q

teeth: dentine forms the bulk of the

A

tooth

44
Q

teeth: dentine is covered by _ or _

A

enamel (crown/above the gum line) or cement (root/below the gum line)

45
Q

teeth: pulp cavity has what structures

A

connective tissue, blood vessels, and nerves

46
Q

teeth: root canal transmits nerves and vessels to and from the pulp cavity that enter the canal through the _

A

apical foramen

47
Q

teeth are held in the tooth sockets by a special type of fibrous joint called a _

A

gomphosis

48
Q

the periodontium in a gomphosis is composed of collagenous fibers running btwn _ of tooth and _ of mandible/maxilla

A

cement of tooth and periosteum of mandible/maxilla

49
Q

_ (#) deciduous teeth

A

20 (baby)

50
Q

_ (#) permanent teeth

A

32

51
Q

teeth: each quadrant of the adult mouth contains (# starting at the midline and moving laterally) _ incisors, _ canine, _ premolars, and _ molars

A

2 incisors, 1 canine, 2 premolars, and 3 molars: 2123

52
Q

palate: hard palate forms anterior _ of the roof of the oral cavity proper (mouth)

A

2/3

53
Q

palate (roof of mouth): hard palate its bony skeleton is formed by the _ of the maxillae and the _ of the palatine bones

A

palatine processes of the maxillae and the horizontal plates of the palatine bones

54
Q

palate (roof of mouth): soft palate forms posterior _

A

1/3 of the roof of the oral cavity proper (moveable)

55
Q

palate (roof of mouth): soft palate it is a controlled flap that allows or limits _

A

communication with the nasal cavity

56
Q

palate (roof of mouth): deep to the mucosa of the palate are numerous mucus-secreting _

A

palatine glands

57
Q

palatine tonsils: often referred to as the

A

“the tonsils”

58
Q

palatine tonsils: masses of _ tissue, one on each side of the _

A

lymphoid tissue, oropharynx

59
Q

tongue: a mass of _ muscle

A

skeletal (striated) muscle

60
Q

tongue: includes 2 types of muscles

A
  1. extrinsic tongue muscles

2. intrinsic tongue muscles

61
Q

tongue: extrinsic tongue muscles which primarily control

A

tongue placement

62
Q

tongue: intrinsic tongue muscles which primarily control _ for manipulation of food during chewing, swallowing, and speech

A

tongue shape

63
Q

tongue: covered w/ a specialized _; textured with elevations, _ papillae, many of which contain _

A

mucosa; lingual papillae, taste buds (ling=tongue)

64
Q

tongue: innervation of tongue muscles is mostly via _ (and CN #)

A

the hypoglossal nerve (CN XII) (gloss = tongue)

65
Q

tongue: sensory innervation:

  1. _ nerve a branch of CN V3
  2. and what sensation from anterior 2/3 of tongue?
A

lingual nerve, general (touch and temp)

66
Q

tongue: sensory innervation:

  1. chorda tympani nerve a branch of _
  2. and what “special sensation” from anterior 2/3 of tongue?
A

CN VII, taste

67
Q

tongue: sensory innervation:

glossopharyngeal nerve what CN # and nearly all sensation from what part of tongue?

A

(CN IX), from posterior 1/3

68
Q

tongue: sensory innervation:

vagus nerve what CN # and all sensation adjacent to what structure?

A

(CN X) epiglottis

69
Q

salivary glands: parotid gland receives (para/sympathetic) innervation from the _ nerve (and CN #)

A

parasympathetic innervation, glossopharyngeal nerve (CN IX)

70
Q

salivary glands: submandibular and sublingual glands receive (para/sympathetic) innervation from CN _ by way of the _ and _ nerve

A

parasympathetic innervation, CN VII, chorda tympani nerve and lingual nerve

71
Q

salivary glands: the ducts of the submandibular and sublingual glands open into the _

A

oral cavity under the tongue

72
Q

What 2 extrinsic eye muscles have differing origin than common tendinous ring?

A

Superior oblique (sphenoid) and inferior oblique (anterior orbital floor)

Anatomy II (28 decks)

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