Lectures 29-30

Question 1

large muscle of facial expression

Answer 1

platysma

Question 2

innervation of platysma

Answer 2

CN VII (facial nerve)

Question 3

innervation of SCM and trapezius

Answer 3

CN XI (spinal accessory nerve)

Question 4

what 2 veins form the external jugular vein

Answer 4

retromandibular vein and posterior auricular vein

Question 5

what vein crosses the SCM

Answer 5

external jugular vein

Question 6

termination of external jugular vein

Answer 6

subclavian vein

Question 7

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

Answer 7

sensory, cervical plexus, ventral primary rami

Question 8

cervical plexus nerve to lower neck and head

Answer 8

lesser occipital nerve (ramus of c2)

Question 9

cervical plexus nerve to posterior ear and skin over parotid gland

Answer 9

great auricular nerve (rami of C2-3)

Question 10

cervical plexus nerve to anterior/lateral neck

Answer 10

transverse cervical nerve (rami of C2-3)

Question 11

cervical plexus nerve to skin over clavicle

Answer 11

supraclavicular nerve (rami of C3-4)

Question 12

boundaries of posterior cervical triangles

Answer 12

upper trapezius, SCM, and the clavicle

Question 13

roof of posterior cervical triangles

Answer 13

deep cervical investing fascia

Question 14

muscles that connect the rib cage to the cervical spine

Answer 14

scalenes (anterior, middle, posterior)

Question 15

scalenes are located in the __

Answer 15

anterior lower portion of the posterior cervical triangle

Question 16

scalenes attach to the

Answer 16

transverse processes of cervical vertebrae

Question 17

scalenes help form the ___

Answer 17

floor of the posterior cervical triangle

Question 18

opening formed by the anterior and middle scalene muscles

Answer 18

scalene hiatus

Question 19

passes through the scalene hiatus

Answer 19

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

Question 20

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

Answer 20

splenius capitis and levator scapulae

Question 21

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

Answer 21

inferior belly of the omohyoid

Question 22

what separates superior and inferior bellies of omohyoid

Answer 22

intermediate tendon

Question 23

nerves that originate within posterior cervical triangle

Answer 23

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

Question 24

where the upper trunk of the brachial plexus lies

Answer 24

Erb’s point in the neck

Question 25

boundaries of anterior cervical triangles

Answer 25

SCM, mandible, midline of the anterior neck

Question 26

roof of anterior cervical triangles

Answer 26

deep cervical investing fascia

Question 27

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

Answer 27

digastric (post and ant bellies)

Question 28

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

Answer 28

stylohyoid

Question 29

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

Answer 29

mylohyoid and geniohyoid

Question 30

"strap muscles" and innervated mostly by motor branches of ansa cervicalis

Answer 30

infrahyoid muscles

Question 31

infrahyoid muscles

Answer 31

omohyoid, sternohyoid, sternothyroid, thyrohyoid

Question 32

suprahyoid muscles

Answer 32

digastric, stylohyoid, mylohyoid, geniohyoid

Question 33

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

Answer 33

muscular, carotid, submandibular, and submental triangles

Question 34

secretes hormones to elevate calcium levels in the blood

Answer 34

parathyroid

Question 35

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

Answer 35

visceral structures (in ant. cervical triangles)

Question 36

submandibular triangle borders

Answer 36

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

Question 37

contents of submandibular triangle

Answer 37

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

Question 38

borders of submental triangle

Answer 38

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

Question 39

contents of submental triangle

Answer 39

mylohyoid and submental lymph nodes, geniohyoids, external jugular vein

Question 40

borders of carotid triangle

Answer 40

SCM, post belly of digastric, sup belly omohyoid

Question 41

contents of carotid triangle

Answer 41

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

Question 42

borders of muscular triangle

Answer 42

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

Question 43

contents of muscular triangle

Answer 43

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

Question 44

2 salivary glands

Answer 44

parotid gland and submandibular gland

Question 45

the submandibular gland lies within the

Answer 45

submandibular triangle

Question 46

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

Answer 46

submandibular triangle, lateral side of the mandible

Question 47

vascular contents of the carotid sheath (2)

Answer 47

common carotid artery and the internal jugular vein

Question 48

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

Answer 48

brachiocephalic artery, right | aortic arch, left

Question 49

the internal jugular vein terminates to form the

Answer 49

brachiocephalic vein

Question 50

occupies the carotid sheath in a posterior position

Answer 50

vagus nerve

Question 51

C3, 4, 5 keep the ___ alive

Answer 51

diaphragm (phrenic n.)

Question 52

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

Answer 52

medial, lateral

Question 53

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

Answer 53

anterior jugular veins

Question 54

anterior jugular veins terminate in the

Answer 54

external jugular veins

Question 55

the common carotid artery divides into the

Answer 55

internal and external carotid arteries

Question 56

internal carotid artery supplies

Answer 56

anterior circulation of the brain

Question 57

branches of external carotid artery mnemonic

Answer 57

"some angry lady figured out P M S"

Question 58

ext. carotid artery br. that supplies thyroid gland

Answer 58

superior thyroid artery

Question 59

ext. carotid artery br. that supplies tongue

Answer 59

lingual artery

Question 60

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

Answer 60

facial artery

Question 61

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

Answer 61

occipital artery

Question 62

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

Answer 62

posterior auricular artery

Question 63

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

Answer 63

ascending pharyngeal artery

Question 64

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

Answer 64

superficial temporal artery

Question 65

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

Answer 65

maxillary artery