Muscular system

Question 1

Sternocleidomastoid

Answer 1

Sternum, clavicle, mastoid
side of neck
- turning and flexing neck
- head down

Question 2

occipitofrontalis

Answer 2

-back by occipital
-frontal
-moves eyebrows
-facial expression
-moves scalp

Question 3

Orbicularis oculi

Answer 3

-around eye
-close eye so hard it protects it
-winks

Question 4

orbicularis oris

Answer 4

-around mouth
-pucker up/pursed
-kiss

Question 5

Buccinator

Answer 5

-cheek
-compresses cheeks to move food

Question 6

Zygomaticus

Answer 6

-cheek bone - corner of mouth
-smile

Question 7

Depressor anguli oris

Answer 7

-frowning
-below lower lip (anchored on chin)

Question 8

masseter

Answer 8

-chewing muscle
-by mandible - back of jaw - back of cheek

Question 9

intercostalis (internal)

Answer 9

between ribs
deeper-forced inhale

Question 10

intercostalis (external)

Answer 10

-inhale
-bottoms of ribs to tops (moves up)

Question 11

Erector spinae

Answer 11

-goes up spine
-muscles that go up back
-Origin - sacrum
-insertion – vertebrae
Extension of back and all other movements

Question 12

External oblique

Answer 12

-anchored by ribs
– Goes down towards center
– Action – twist and flex/crunch
(sides)

Question 13

Internal oblique

Answer 13

– Slightly deeper
– Anchored on hip
Action – twist and flex/crunch

Question 14

Transversus abdominus

Answer 14

– Deeper
– Compresses abs
– Flexes abs
– Anchored at sides

Question 15

rectus abdominis

Answer 15

– Six pack muscle
action – crunch/set up

Question 16

Trapezius

Answer 16

– Covers most upper back
– Shrug shoulders – shoulders go back
– Extension of neck/back – head goes back

Question 17

Rhomboideus

Answer 17

– Upper back – between scapula
– Bring scapula together

Question 18

serratus anterior

Answer 18

under armpit
Origin is on side
Brings shoulders forward

Question 19

Pectoralis minor

Answer 19

– Anchored at ribs – front – attaches to scapula
– Top of shoulder
– Brings shoulder forward and down

Question 20

Pectoralis major

Answer 20

– Covers hold chest
– Anchors at sternum – inserts at humorous
– Hug -brings arms across

Question 21

Teres major

Answer 21

– Scapula is anchor – bottom – to humorous
– Adduction of arms

Question 22

Latissimus dorsi

Answer 22

• lower back
• adduction - iron cross

Question 23

supraspinatus

Answer 23

– Sits a top scapula – to top of humorous
– Holding humorous in socket

Question 24

Deltoid

Answer 24

– Cover shoulder
– Abduction of arms
– lifts up arms