Muscles And Blood Vessels Of The Head And Neck

Front 1

what type of muscles are the extrinsic muscles of the eye?

Back 1

skeletal muscles

Front 2

where do the extrinsic eye muscles originate?

Back 2

surface of the orbit

Front 3

where do the extrinsic eye muscles insert?

Back 3

sclera of the eyeball

Front 4

what muscles control the position of the eyeball

Back 4

extrinsic eye muscles

Front 5

these extrinsic eye muscles come straight into the eyeball to pull on it

Back 5

rectus

Front 6

these extrinsic eye muscles come into the eyeball at an angle to pull on it

Back 6

oblique

Front 7

what are the 6 extrinsic eye muscles?

Back 7

inferior rectus, superior rectus, lateral rectus, medial rectus, inferior oblique, superior oblique

Front 8

what extrinsic eye muscles are innervate by the oculomotor nerve?

Back 8

inferior rectus, superior rectus, medial rectus, inferior oblique

Front 9

what extrinsic eye muscle is innervated by the trochlear nerve?

Back 9

superior oblique

Front 10

what extrinsic eye muscle is innervated by the abducens nerve?

Back 10

lateral rectus

Front 11

what type of muscle are the intrinsic muscles of the eye?

Back 11

smooth muscle

Front 12

what nerve innervates the muscles of the tongue?

Back 12

hypoglossal nerve (CNXII)

Front 13

glossus refers to what?

Back 13

tongue

Front 14

what are the 3 extrinsic muscles of the tongue?

Back 14

styloglossus, hyoglossus, genioglossus

Front 15

where does the styloglossus muscle originate?

Back 15

styloid process of the temporal bone

Front 16

what is the action of the styloglossus muscle?

Back 16

elevates and retracts the tongue

Front 17

Where does the hyoglossus muscle originate?

Back 17

hyoid bone

Front 18

What is the action of the hyoglossus muscle?

Back 18

depresses the tongue

Front 19

Where does the genioglossus muscle originate?

Back 19

genoid tubercle of the mandible

Front 20

What is the action of the genioglossus muscle?

Back 20

sticking your tongue out of your mouth (protraction)

Front 21

this tongue muscles alter the shape of the tongue

Back 21

intrinsic muscles

Front 22

what type of muscles are the muscles of facial expression?

Back 22

skeletal muscles

Front 23

where do the muscles of facial expression originate?

Back 23

surface of skull

Front 24

where are the muscles of facial expression insert?

Back 24

hypodermis and dermis of the skin

Front 25

what nerve innervates the muscles of facial expression

Back 25

CNVII

Front 26

this connects the frontalis muscle and the occipitalis muscles

Back 26

epicranial aponeurosis

Front 27

this muscle of facial expression draws the scalp anteriorly, raises eyebrows, and wrinkles the skin on your forehead

Back 27

frontalis muscle

Front 28

this muscle of facial expression draws the scalp posteriorly

Back 28

occipitalis muscle

Front 29

this muscle of facial expression encircles the eye and closes it

Back 29

orbicularis oculi muscle

Front 30

this muscle of facial expression presses against teeth and lips, as in whistling, blowing and sucking; it also keeps food from getting between your teeth and cheeks when you are chewing

Back 30

buccinator muscle

Front 31

this muscle of facial expression encircles the mouth and closes and protrudes the lips

Back 31

orbicularis orbis muscle

Front 32

this muscle of facial expression is very superficial and draws out part of the lower lip inferiorly and posteriorly as in pouting

Back 32

platysma muscle

Front 33

the origin and insertion of muscles of mastication are where?

Back 33

on bone

Front 34

when the muscles of mastication contract where do they create movement at?

Back 34

temporomandibular joint

Front 35

what nerve innervates the muscles of mastication?

Back 35

mandibular branch of the trigeminal nerve

Front 36

what are the 4 pairs of mastication muscles?

Back 36

temporalis, masseter, lateral pterygoid, medial pterygoid

Front 37

this muscle of mastication closes and retracts the mandible

Back 37

temporalis muscle

Front 38

this muscle of mastication closes the mandible

Back 38

masseter muscle

Front 39

this muscle of mastication opens, protracts, and moves the mandible from side to side

Back 39

lateral pterygoid muscle

Front 40

this muscle of mastication closes, protracts, and moves the mandible from side to side

Back 40

medial pterygoid muscle

Front 41

The neck contains what 2 pairs of muscles that are innervated by the accessory nerve?

Back 41

trapezius and sternocleidomastoid muscles

Front 42

Write the origin, insertion, action and innervation of the sternocleidomastoid muscle.

Back 42

Origin: sternum off of the medial portion of the clavicle Insertion: mastoid process of the temporal bone Action: bilaterally, flexes the cervical portion of the vertebral column (bring chin to chest) and unilaterally it rotates the head to the side opposite of the contracting muscle

Front 43

the external carotid artery supplies to what?

Back 43

neck and structures of the head external to the skull

Front 44

this vein returns deoxygenated blood from inside the skull

Back 44

internal jugular vein

Front 45

this vein returns blood from areas of the head external to the skull, as well as from the neck

Back 45

external jugular vein

Front 46

external jugular vein dumps into what?

Back 46

subclavian vein

Front 47

what dumps into the brachiocephalic vein?

Back 47

subclavian and internal jugular veins

Front 48

the brachiocephalic veins join to form what?

Back 48

superior vena cava

Front 49

this is a chemoreceptor that detects concentration of oxygen in the blood and sends information to the medulla to regulate respiration rate

Back 49

carotid body

Front 50

where are changes in arterial blood pressure detected to regulate heart rate

Back 50

carotid sinus