lecture 5 notes

Question 1

the fibers of the sternocleidomasoid run

Answer 1

diagonal

Question 2

what muscle is the #1 muscle for cervical rotation

Answer 2

sternocleidomastoid

Question 3

what does the SCM do unilaterally?

Answer 3

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

Question 4

what does the SCM do bilaterally?

Answer 4

-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)

Question 5

the SCM splits the neck region into

Answer 5

• anterior cervical region (anterior triagnle)
• lateral cervical region (posterior triangle)
• posterior cervical region

Question 6

muscles of anterior cervical region

Answer 6

suprahyoids
infrahyoids

Question 7

muscles of the suprahyoids

Answer 7

-mylohyoid
-digastric
-stylohyoid
-geniohyoid

Question 8

the digastric has an

Answer 8

anterior and posterior belly

Question 9

muscles of the infrahyoids

Answer 9

thyrohyoid
-sternothyroid
-omohyoid
-sternohyoid

Question 10

omo-

Answer 10

shoulder

Question 11

anterior board of the anterior cervical region (anterior triangle)

Answer 11

the median line of the neck

Question 12

posterior boarder of the anterio triagnle

Answer 12

the anterior border of the SCM

Question 13

the superior boundary of the anterior triagnle is formed by the

Answer 13

inferior border of the mandible

Question 14

an apex is located where in the anterior traingle

Answer 14

at the jugular notch in the manubrium

Question 15

the roof of the anterior triagnle is formed by

Answer 15

subcutaneous tissue containing the platysma

Question 16

the floor of the anterior triangle is formed by

Answer 16

pharynx, larynx, and the thyroid gland

Question 17

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

Answer 17

-submandibular
-submental
-carotid
-muscular )omotracheal

Question 18

carotid traingle contains which muscles

Answer 18

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

Question 19

what artery is found inside of the carotid triangle

Answer 19

common carotid artery

Question 20

what vien is found inside of the carotid triangle

Answer 20

internal jugular

Question 21

carotid triangle contents incude

Answer 21

carotid sinus and body

Question 22

carotid sinus

Answer 22

barorecptors - pressure

Question 23

carotid body

Answer 23

chemoreceptors - chemical

Question 24

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

Answer 24

C3, C4

Question 25

anterior margin of the lateral cervical region

Answer 25

posterior boarder of the SCM

Question 26

posterior margin of the lateral cervical region

Answer 26

anterior border of the traps

Question 27

inferior margin of the lateral cervical region

Answer 27

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

Question 28

where is the apex in the lateral cervical region

Answer 28

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

Question 29

what is the roof of the laterla cervical region formed of

Answer 29

the investion layer of deep cervical fascia

Question 30

the floor of the lateral cervical region is formed by

Answer 30

muscles covered by the prevertebral layer of deep cervical fascia

Question 31

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

Answer 31

spiral

Question 32

the region of the lateral cervical region is covered by

Answer 32

skin and subcutaneous tissue containing the platysma

Question 33

what muscle passes thru the lateral triangle and divides into two

Answer 33

omohyoid

Question 34

the posterior triangle contents include

Answer 34

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

Question 35

what are the nerves in the neck

Answer 35

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

Question 36

the phrenic never is from ..

Answer 36

C 3, 4 ,5

Question 37

nerves start where

Answer 37

the brain and moves down

Question 38

arteries start where

Answer 38

the heart and move up

Question 39

the cervical plexus is what nerves

Answer 39

C1-C5

Question 40

what forms the roots of the cervical plexus

Answer 40

anterior rami

Question 41

what is the ansa cervicalls

Answer 41

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

Question 42

what is the dermatomes of the greater occipital

Answer 42

C2

Question 43

what is the dermatomes of the third occipital

Answer 43

C3

Question 44

what is the dermatomes of the lesser occipital

Answer 44

C2

Question 45

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

Answer 45

torticollis

Question 46

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

Answer 46

fibrous tissue tumor ; SCM

Question 47

CN XI (spinal assecory nerve) lesion affects what muscles

Answer 47

SCM and traps

Question 48

lesions of the spinal sccessory nerve may be caused by

Answer 48

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

Question 49

the prevertebral neck muscles are associated with

Answer 49

OA joints

Question 50

the prevertebral neck muscles can be damaged by

Answer 50

whiplash

Question 51

the hyoid bones are at what levels of vertebrae?

Answer 51

C3 and C4

Question 52

the neck is divided into how mnay triangle regions

Answer 52

3