lecture 5 notes Flashcards

1
Q

the fibers of the sternocleidomasoid run

A

diagonal

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2
Q

what muscle is the #1 muscle for cervical rotation

A

sternocleidomastoid

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3
Q

what does the SCM do unilaterally?

A

lateral flexion of neck to same side and rotates it so your face is toward the oppiste direction

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4
Q

what does the SCM do bilaterally?

A

-extends the neck at the atlanto-occiptial joint (OA joint)
-flexes cervical verterbae (making double chin)
-extends top vertebrae while flexion inferior vertebrae (move chin foward while head is kpet level)

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5
Q

the SCM splits the neck region into

A
  • anterior cervical region (anterior triagnle)
  • lateral cervical region (posterior triangle)
  • posterior cervical region
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6
Q

muscles of anterior cervical region

A

suprahyoids
infrahyoids

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7
Q

muscles of the suprahyoids

A

-mylohyoid
-digastric
-stylohyoid
-geniohyoid

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8
Q

the digastric has an

A

anterior and posterior belly

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9
Q

muscles of the infrahyoids

A

thyrohyoid
-sternothyroid
-omohyoid
-sternohyoid

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10
Q

omo-

A

shoulder

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11
Q

anterior board of the anterior cervical region (anterior triangle)

A

the median line of the neck

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12
Q

posterior boarder of the anterio triagnle

A

the anterior border of the SCM

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13
Q

the superior boundary of the anterior triagnle is formed by the

A

inferior border of the mandible

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14
Q

an apex is located where in the anterior traingle

A

at the jugular notch in the manubrium

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15
Q

the roof of the anterior triagnle is formed by

A

subcutaneous tissue containing the platysma

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16
Q

the floor of the anterior triangle is formed by

A

pharynx, larynx, and the thyroid gland

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17
Q

the anterior cervical region contains what other trianlges inside of it?

A

-submandibular
-submental
-carotid
-muscular )omotracheal

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18
Q

carotid traingle contains which muscles

A

superior belly of omohyoid ,posterior belly of digastric , anterior belly of SCM

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19
Q

what artery is found inside of the carotid triangle

A

common carotid artery

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20
Q

what vien is found inside of the carotid triangle

A

internal jugular

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21
Q

carotid triangle contents incude

A

carotid sinus and body

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22
Q

carotid sinus

A

barorecptors - pressure

23
Q

carotid body

A

chemoreceptors - chemical

24
Q

where does the CCA turn into the internal and external carotid artery

A

C3, C4

25
Q

anterior margin of the lateral cervical region

A

posterior boarder of the SCM

26
Q

posterior margin of the lateral cervical region

A

anterior border of the traps

27
Q

inferior margin of the lateral cervical region

A

middle 3rd of the clavicle between the traps and the SCM

28
Q

where is the apex in the lateral cervical region

A

where the SCM and traps meet on the superior muhcal line of the occipital bone

29
Q

what is the roof of the laterla cervical region formed of

A

the investion layer of deep cervical fascia

30
Q

the floor of the lateral cervical region is formed by

A

muscles covered by the prevertebral layer of deep cervical fascia

31
Q

the lateral cervcial region wraps around the lateral surface of the neck like a

A

spiral

32
Q

the region of the lateral cervical region is covered by

A

skin and subcutaneous tissue containing the platysma

33
Q

what muscle passes thru the lateral triangle and divides into two

A

omohyoid

34
Q

the posterior triangle contents include

A

scalenes , levator scapulae , splenius capitis , omohyoid (inferior belly)

35
Q

what are the nerves in the neck

A

accessory nerve , suprascapular nerve, phrenic nerve, and brachial plexus

36
Q

the phrenic never is from ..

A

C 3, 4 ,5

37
Q

nerves start where

A

the brain and moves down

38
Q

arteries start where

A

the heart and move up

39
Q

the cervical plexus is what nerves

A

C1-C5

40
Q

what forms the roots of the cervical plexus

A

anterior rami

41
Q

what is the ansa cervicalls

A

the loop of nerves that has other nerves coming off of it

42
Q

what is the dermatomes of the greater occipital

A

C2

43
Q

what is the dermatomes of the third occipital

A

C3

44
Q

what is the dermatomes of the lesser occipital

A

C2

45
Q

what is a contraction or shortening of the cervical nuscles that produces twisting of the neck and slanting of the head

A

torticollis

46
Q

the most common tyoe of torticollis results from ___ ____ __ that develops in the ____ ___ ___

A

fibrous tissue tumor ; SCM

47
Q

CN XI (spinal assecory nerve) lesion affects what muscles

A

SCM and traps

48
Q

lesions of the spinal sccessory nerve may be caused by

A

penetrating tramua , surgical proedcure in the lateral cervical region, tumors at the cranial base, or fractures of the jugular foramen

49
Q

the prevertebral neck muscles are associated with

A

OA joints

50
Q

the prevertebral neck muscles can be damaged by

A

whiplash

51
Q

the hyoid bones are at what levels of vertebrae?

A

C3 and C4

52
Q

the neck is divided into how mnay triangle regions

A

3

53
Q
A