Muscles of head, neck, and trunk

Question 1

function of external intercostals

Answer 1

elevates the ribs (inhalation)

Question 2

function of the diaphragm

Answer 2

increases thoracic cavity (inhalation)

Question 3

Origin and insertion of masseter

Answer 3

origin: zygomatic arch
insertion: mandibular angle

Question 4

muscle

Answer 4

sternocleidomastoid

Question 5

muscle

Answer 5

occipitofrontalis

Question 6

muscle

Answer 6

external intercostals

Question 7

bone feature

Answer 7

temporal fossa

Question 8

function of internal intercostals

Answer 8

depresses the ribs (exhalation)

Question 9

Muscle, origin and insertion.

Answer 9

masseter

origin: zygomatic arch
insertion: mandibular angle

Question 10

muscle

Answer 10

aponeurosis of the external oblique

Question 11

muscle

Answer 11

internal intercostals

Question 12

muscle, origin, and insertion.

Answer 12

muscle: serratus anterior
origin: ribs 1-8
insertion: entire anterior surface of vertebral border of scapula

Question 13

function of trapezius

Answer 13

raise, rotate, and retract the scapula

Question 14

serratus anterior origin and insertion

Answer 14

origin: ribs 1-8
insertion: entire anterior surface of vertebral border of scapula

Question 15

muscle

Answer 15

thoracolumbar fascia

Question 16

function of orbicularis oris

Answer 16

closes and protrudes lips (duck face)

Question 17

muscle

Answer 17

masseter

Question 18

muscle

Answer 18

inguinal ligament

Question 19

function of temporalis

Answer 19

elevates and retracts mandible

Question 20

function of rhomboid major

Answer 20

elevates and retracts scapula

Question 21

muscle

Answer 21

orbicularis oris

Question 22

muscle, origin and insertion.

Answer 22

muscle: temporalis
origin: temporal fossa
insertion: coronoid process of the mandible

Question 23

function of serratus anterior

Answer 23

protract and hold scapula against chest wall

Question 24

muscle

Answer 24

external oblique

Question 25

muscle

Answer 25

internal oblique

Question 26

function of external oblique

Answer 26

compress abdomen; flex, laterally flex, and rotate vertebral column

Question 27

sternocleidomastoid origin and insertion

Answer 27

origin: manubrium of sternum and sternal end of clavicle insertion: mastoid process

Question 28

temporalis origin and insertion

Answer 28

origin: temporal fossa insertion: coronoid process of mandible

Question 29

muscle

Answer 29

linea alba

Question 30

function of platysma

Answer 30

depresses mandible

Question 31

Function of masseter

Answer 31

elevates mandible

Question 32

function of orbicularis oculi

Answer 32

closes eyes

Question 33

Muscles labeled 1, 2, and 3

Answer 33

1. rhomboid minor 2. rhomboid major 3. erector spinae

Question 34

function of rhomboid minor

Answer 34

elevates and retracts scapula

Question 35

muscle

Answer 35

masseter

Question 36

trapezius origin and insertion

Answer 36

origin: occipital bone, ligamentum nuchae, and spines of C7-T12 insertion: acromion process, spine of scapula, and acromial end of clavicle

Question 37

muscle

Answer 37

sternocleidomastoid

Question 38

muscle

Answer 38

rectus abdominis

Question 39

function of buccinator

Answer 39

presses cheeks against teeth and lips (blowing or sucking)

Question 40

function of internal oblique

Answer 40

compress abdomen; flex, laterally flex, and rotate vertebral column

Question 41

muscle, origin, and insertion.

Answer 41

muscle: sternocleidomastoid origin: manubrium and sternal end of clavical insertion: mastoid process

Question 42

function of transverse abdominis

Answer 42

compress abdomen

Question 43

muscle

Answer 43

platysma

Question 44

function of erector spinae

Answer 44

extend vertebral column

Question 45

function of sternocleidomastoid

Answer 45

laterally rotate and flex head (up and away); forced inhalation

Question 46

What is the red muscle?

Answer 46

diaphram

Question 47

function of the levator ani

Answer 47

supports pelvic viscera, elevates and retracts the anus

Question 48

muscle

Answer 48

transverse abdominis

Question 49

muscle, origin, and insertion.

Answer 49

muscle: trapezius origin: occipital bone, ligamentum nuchae, and spines of C7-T12 insertion: acromion process, spine of scapula, and acromial end of clavicle

Question 50

muscle

Answer 50

orbicularis oculi

Question 51

function of occipitofrontalis

Answer 51

raises eyebrows

Question 52

muscle

Answer 52

buccinator

Question 53

muscle

Answer 53

sternocleidomastoid

Question 54

function of rectus abdominis

Answer 54

flexes vertebral column, compresses the abdomen

Question 55

muscle

Answer 55

temporalis

Question 56

muscle

Answer 56

levator ani