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Unit 3 Human Anatomy > Lectures 29-30 > Flashcards

Lectures 29-30 Flashcards

1
Q

large muscle of facial expression

A

platysma

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2
Q

innervation of platysma

A

CN VII (facial nerve)

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3
Q

innervation of SCM and trapezius

A

CN XI (spinal accessory nerve)

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4
Q

what 2 veins form the external jugular vein

A

retromandibular vein and posterior auricular vein

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5
Q

what vein crosses the SCM

A

external jugular vein

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6
Q

termination of external jugular vein

A

subclavian vein

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7
Q

the 4 superficial cervical nerves are ___ branches of the ____ plexus and all come from ____ rami

A

sensory, cervical plexus, ventral primary rami

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8
Q

cervical plexus nerve to lower neck and head

A

lesser occipital nerve (ramus of c2)

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9
Q

cervical plexus nerve to posterior ear and skin over parotid gland

A

great auricular nerve (rami of C2-3)

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10
Q

cervical plexus nerve to anterior/lateral neck

A

transverse cervical nerve (rami of C2-3)

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11
Q

cervical plexus nerve to skin over clavicle

A

supraclavicular nerve (rami of C3-4)

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12
Q

boundaries of posterior cervical triangles

A

upper trapezius, SCM, and the clavicle

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13
Q

roof of posterior cervical triangles

A

deep cervical investing fascia

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14
Q

muscles that connect the rib cage to the cervical spine

A

scalenes (anterior, middle, posterior)

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15
Q

scalenes are located in the __

A

anterior lower portion of the posterior cervical triangle

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16
Q

scalenes attach to the

A

transverse processes of cervical vertebrae

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17
Q

scalenes help form the ___

A

floor of the posterior cervical triangle

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18
Q

opening formed by the anterior and middle scalene muscles

A

scalene hiatus

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19
Q

passes through the scalene hiatus

A

rami and trunks of the brachial plexus along with the subclavian triangle

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20
Q

rounding out the floor of the posterior cervical triangles are the ___ (2 mx)

A

splenius capitis and levator scapulae

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21
Q

small muscle connecting the scapula to the hyoid bone that divides the posterior triangle into occipital and subclavian triangles

A

inferior belly of the omohyoid

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22
Q

what separates superior and inferior bellies of omohyoid

A

intermediate tendon

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23
Q

nerves that originate within posterior cervical triangle

A

lesser occipital, great auricular, transverse cervical, supraclavicular nerves, spinal accessory nerve, 5 roots and 3 br of brachial plexus

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24
Q

where the upper trunk of the brachial plexus lies

A

Erb’s point in the neck

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25
Q

boundaries of anterior cervical triangles

A

SCM, mandible, midline of the anterior neck

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26
Q

roof of anterior cervical triangles

A

deep cervical investing fascia

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27
Q

runs from mastoid process to hyoid and from the hyoid to the mandible

A

digastric (post and ant bellies)

28
Q

runs from styloid process to the hyoid; may be pierced by digastric tendon; lifts hyoid to assist swallowing

A

stylohyoid

29
Q

2 muscles close in the space between the two bodies of the mandible

A

mylohyoid and geniohyoid

30
Q

“strap muscles” and innervated mostly by motor branches of ansa cervicalis

A

infrahyoid muscles

31
Q

infrahyoid muscles

A

omohyoid, sternohyoid, sternothyroid, thyrohyoid

32
Q

suprahyoid muscles

A

digastric, stylohyoid, mylohyoid, geniohyoid

33
Q

the digastric, superior belly of omohyoid, stylohyoid and SCM divide the anterior cervical triangle into: (4 triangles)

A

muscular, carotid, submandibular, and submental triangles

34
Q

secretes hormones to elevate calcium levels in the blood

A

parathyroid

35
Q

larynx and its various cartilages and muscles, thyroid gland and parathyroid glands, and cervical portion of the trachea

A

visceral structures (in ant. cervical triangles)

36
Q

submandibular triangle borders

A

ant/post bellies of digastric, body of mandible, mylohyoid and hypoglossus

37
Q

contents of submandibular triangle

A

submandibular glands and apex of parotid gland, submandibular lymph nodes, hypoglossal nerve, facial artery/vein

38
Q

borders of submental triangle

A

right ant belly digastric, hyoid body, left ant belly digastric

39
Q

contents of submental triangle

A

mylohyoid and submental lymph nodes, geniohyoids, external jugular vein

40
Q

borders of carotid triangle

A

SCM, post belly of digastric, sup belly omohyoid

41
Q

contents of carotid triangle

A

common carotid artery and its bifurcation, internal jugular vein, vagus nerve, carotid sheath, first 5 br of external carotid artery

42
Q

borders of muscular triangle

A

superior belly of omohyoid, SCM, imaginary line down medial aspect of neck

43
Q

contents of muscular triangle

A

infrahyoid muscles, thyroid gland, cervical portion of trachea, pre brachial fascia

44
Q

2 salivary glands

A

parotid gland and submandibular gland

45
Q

the submandibular gland lies within the

A

submandibular triangle

46
Q

the parotid gland lies partially in the ___ and overlies the ___

A

submandibular triangle, lateral side of the mandible

47
Q

vascular contents of the carotid sheath (2)

A

common carotid artery and the internal jugular vein

48
Q

the common carotid artery begins as a branch of the ___ on the ___ side and as a direct branch of the ____ on the ___ side

A

brachiocephalic artery, right

aortic arch, left

49
Q

the internal jugular vein terminates to form the

A

brachiocephalic vein

50
Q

occupies the carotid sheath in a posterior position

A

vagus nerve

51
Q

C3, 4, 5 keep the ___ alive

A

diaphragm (phrenic n.)

52
Q

the common carotid artery occupies a ___ position, while the internal jugular vein occupies a ___ position within the carotid sheath

A

medial, lateral

53
Q

form from several small veins around the chin; descend in the muscular triangle

A

anterior jugular veins

54
Q

anterior jugular veins terminate in the

A

external jugular veins

55
Q

the common carotid artery divides into the

A

internal and external carotid arteries

56
Q

internal carotid artery supplies

A

anterior circulation of the brain

57
Q

branches of external carotid artery mnemonic

A

“some angry lady figured out P M S”

58
Q

ext. carotid artery br. that supplies thyroid gland

A

superior thyroid artery

59
Q

ext. carotid artery br. that supplies tongue

A

lingual artery

60
Q

ext. carotid artery br. that supplies external portion of face

A

facial artery

61
Q

ext. carotid artery br. that supplies back of the head

A

occipital artery

62
Q

ext. carotid artery br. that runs posterior and behind ear

A

posterior auricular artery

63
Q

ext. carotid artery br. that ascends deeply on pharyngeal wall

A

ascending pharyngeal artery

64
Q

ext. carotid artery br. that runs superficially over temporal area

A

superficial temporal artery

65
Q

ext. carotid artery br. that is the only one that gives rise to a branch that enters the skill via the infra temporal fossa

A

maxillary artery

Unit 3 Human Anatomy (8 decks)

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