cscs muscle anatomy and function

Question 1

External Oblique

Answer 1

ACTION:
trunk rotation
FUNCTION:
compression of abdominal cavity, anti-rotation

Question 2

Tibialis Posterior

Answer 2

ACTION:
plantarflex, invert
FUNCTION:
controls the medial longitudinal arch

Question 3

Infraspinatus

Answer 3

ACTION:
External rotation
FUNCTION:
Glenohumeral Joint Stability

Question 4

rotator cuff involves:

Answer 4

supraspinatius, infraspinatus,
teres minor
subscapularis
SITS

Question 5

what muscles in the rotator cuff externally rotate the shoulder

Answer 5

under the scapula:

infraspinatus and teres minor

Question 6

what muscles in the rotator cuff internally rotate the shoulder?

Answer 6

subscapularis

Question 7

above spine of scapula

Answer 7

supraspinatus

Question 8

supraspinatus

Answer 8

abductor of arm 15 degrees of motion

Question 9

deltoid

Answer 9

multi-penneated muscle (fibers run all different ways)

shoulder muscle

Question 10

serratus anterior

Answer 10

holds onto ribs,

upwardly rotates scapula

Question 11

glute muscles

Answer 11

max: top - largest
med: side of hip- stability
min: underneath - small and deep

Question 12

psoas

Answer 12

hip flexor muscle

attaches to lumbar spine through hip to femur.

Question 13

knee muscles

Answer 13

quads:
rectus femoris
vastus lateralis
vastus medialis

Question 14

knee bones

Answer 14

femur, patella, tibia, and fibula

Question 15

rectus femoris

Answer 15

only quad muscle that helps with hip flexion. also does knee extension

Question 16

two knee muscles that do not attach to hip and do not do knee flexion

Answer 16

vastus lateralis and vastus medialis

Question 17

what muscles help with knee extension

Answer 17

all 4 quad muscles

Question 18

anterior thigh muscles

Answer 18

hamstrings go from hip to tibia

Question 19

hamstring muscles

Answer 19

biceps femoris short and long head
semitendinosus
semimembranosus

Question 20

short head of bicep femoris

Answer 20

only helps knee flexion

Question 21

rdl deadlift muscles

Answer 21

semitendinosus

semimembranosus

Question 22

adductor muscles

Answer 22

inside thigh- helps hamstrings- helps squat by 50% for hip extension

Question 23

calf muscles

Answer 23

gastrocnemius

soleus

Question 24

gastrocnemius

Answer 24

standing calf raise

Question 25

seated calf raise

Answer 25

soleus deeper and closer to bone

only through tibia and fibula

Question 26

running muscle for calves

Answer 26

slow twitch: soleus walking

fast twitch: gastrocnemius running and box jumps

Question 27

muscle fiber arrangement:

deltoid

Answer 27

multipennate

Question 28

muscle fiber arrangement:

bicep brachii

Answer 28

fusiform

Question 29

muscle fiber arrangement:

rectus abdominis

Answer 29

longitudinal

Question 30

muscle fiber arrangement:

gluteus medius

Answer 30

radiate

Question 31

muscle fiber arrangement:

tibialis posterior

Answer 31

unipennate

Question 32

muscle fiber arrangement:

rectus femoris

Answer 32

bipennate