Muscles

Question 1

muscle that crosses the anterior side…

Answer 1

produce flexion

Question 2

muscle that crosses posterior side…

Answer 2

produces extension

Question 3

muscle that crosses lateral side

Answer 3

produces abduction

Question 4

muscle that crosses medial side

Answer 4

produces adduction

Question 5

Muscle actions of the head and neck

Answer 5

1. facial expression
2. extrinsic eye muscles
3. muscles of mastication
4. muscles of swallowing and speech
5. muscle of neck for head movement (sternocleidomastoid)

Question 6

muscle of vertebral column

Answer 6

prime mover of back extensions and maintenance of posture, contributor to lateral bending rotation of vertebral column

Question 7

external intercostal

Answer 7

elevates ribs, inspiration

Question 8

internal intercostal

Answer 8

depresses ribs, expiration

Question 9

diaphragm

Answer 9

prime mover of inspiration, contraction expands thoracic activity

Question 10

rectus abdominus

Answer 10

flex and rotate vertebral column

Question 11

external oblique

Answer 11

flex vertebral column, compress abdominal contents, lateral bending

Question 12

Internal oblique

Answer 12

flex vertebral column, compress abdominal contents, lateral bending

Question 13

transverse abdominis

Answer 13

compress abdominal contents

Question 14

muscles of pelvis

Answer 14

span pelvic outlet, support pelvic organs and regulate urination and defecation

Question 15

pectoral girdle

Answer 15

elevation, depression, upward rotation and protraction, retraction

Question 16

trapezius

Answer 16

elevates scapula and depresses scapula

Question 17

rhomboid major & minor

Answer 17

retracts scapula

Question 18

levator scapulae

Answer 18

elevates scapula

Question 19

pectoralis minor

Answer 19

depresses scapula

Question 20

serratus anterior

Answer 20

protraction and upward rotation

Question 21

pectoralis major

Answer 21

flex, adducts, medially rotates arm

Question 22

deltoid

Answer 22

abducts arm

Question 23

latissimus dorsi

Answer 23

extends, adducts and medially rotates arm

Question 24

teres major

Answer 24

extends, adducts and medially rotates arm

Question 25

supraspinatus

Answer 25

abducts arm

Question 26

infraspinatus

Answer 26

lateral rotation of arm

Question 27

teres minor

Answer 27

lateral rotation of arm

Question 28

subscapularis

Answer 28

medial rotation of arm

Question 29

biceps brachii

Answer 29

flexes and supinates forearm at elbow

Question 30

brachialis

Answer 30

flexes forearm at elbow joint

Question 31

triceps brachii

Answer 31

extend forearm at elbow joint

Question 32

hypothenar group

Answer 32

moves pinky finger

Question 33

thenar group

Answer 33

moves thumb

Question 34

gluteus maximus

Answer 34

major extensor of thigh, laterally rotates thigh

Question 35

iliacus

Answer 35

flexes thigh at hip joint

Question 36

Psoas major

Answer 36

flexes thigh at hip joint

Question 37

rectus femoris

Answer 37

flex thigh at hip joint, extends knee as part of quadriceps

Question 38

sartorius

Answer 38

flex hip, flexes knee and laterally rotates thigh at hip joint

Question 39

quadriceps femoris

Answer 39

extend leg at knee joint, 4 muscles for a common tendon at tibia

Question 40

vastus lateralis

Answer 40

extends knee

Question 41

vastus medialis

Answer 41

extends knee

Question 42

hamstring (biceps femoris, semitendinosus and semimembranosus)

Answer 42

extension of thigh at hip joint, flexion of leg at knee joint

Question 43

tibialis anterior

Answer 43

dorsiflexion of foot, inverts foot

Question 44

extensor digitorum longus

Answer 44

extension of toes

Question 45

extensor hallucis longus

Answer 45

extension of big toe

Question 46

fibularis longus

Answer 46

eversion of foot, plantar flexion

Question 47

gastrocnemius

Answer 47

plantar flexion

Question 48

soleus

Answer 48

plantar flexion

Question 49

calcaneal tendon

Answer 49

Achilles tendon

Question 50

nerve supply to leg

Answer 50

tibial nerve, common fibular nerve

Question 51

nerve supply to thigh

Answer 51

tibial nerve, obturator ner and femoral nerve

Question 52

sciatic nerve branches

Answer 52

tibial nerve and common fibular nerve

Question 53

nerve supply to hands

Answer 53

ulnar nerve and median nerve

Question 54

nerve supply to arm

Answer 54

musculocutaneous nerve and radial nerve

Question 55

muscle supply to shoulder

Answer 55

axillary nerve

Question 56

cardiac muscle

Answer 56

consists of small cells that are striated and under involuntary control, fewer myofibrils

Question 57

smooth muscle

Answer 57

consists of small elongated cells that are striated and under involuntary control, move substances through internal body channels

Question 58

isotonic contractions

Answer 58

muscle generates force and shortens as it lifts weight

Question 59

isometric contractions

Answer 59

muscle stays the same length as it develops tension

Question 60

concentric isotonic contractions

Answer 60

muscle shortens as it does work

Question 61

eccentric isotonic contraction

Answer 61

muscle generates force as it lengthens

Question 62

slow oxidative fibers

Answer 62

slow, fatigue resistant, running and maintaining posture

Question 63

fast oxidative fibers

Answer 63

intermediate, moderately fatigue resistant, sprinting and walking

Question 64

fast glycolytic fibers

Answer 64

fast, fatigable, short term intense, or powerful movements

Question 65

cervical plexus

Answer 65

innervates muscles of diaphragm, neck

Question 66

brachial plexus

Answer 66

innervates skin and muscle of upper limbs

Question 67

lumbosacral plexus

Answer 67

innervates skin and muscles of anterior and medial thigh and kin of medial leg

Question 68

ball and socket joint

Answer 68

multiaxial movement

Question 69

condylar joint

Answer 69

biaxial movement

Question 70

saddle joint

Answer 70

biaxial movement

Question 71

hinge joint

Answer 71

uniaxial movement

Question 72

pivot joint

Answer 72

uniaxial movement

Question 73

plane joint

Answer 73

non axial movement