chapter 3

Question 1

skeletal muscle

Answer 1

striated, voluntary

Question 2

smooth muscle

Answer 2

visceral, involuntary

Question 3

involuntary movement of smooth muscle

Answer 3

peristalsis

Question 4

cardiac muscle

Answer 4

myocardial, involuntary

Question 5

automaticity

Answer 5

muscle can contract without involvement of nerve supply (visceral, smooth, and cardiac)

Question 6

contractility

Answer 6

skeletal muscle can contract (shorten)

Question 7

elasticity

Answer 7

muscle can return back to original state after stretching force is removed

Question 8

excitability

Answer 8

irritability; ability or skeletal muscle to receive and respond to nerve input by contracting

Question 9

extensibility

Answer 9

ability of skeletal muscle to be stretched

Question 10

abduction

Answer 10

movement away from midline

Question 11

adduction

Answer 11

movement of body part towards midline

Question 12

inversion

Answer 12

turning inward

Question 13

eversion

Answer 13

turning outward of sole of foot

Question 14

elevation

Answer 14

raising body part

Question 15

depression

Answer 15

lowering body part

Question 16

flexion

Answer 16

moving two body surfaces towards each other (bending)

Question 17

extension

Answer 17

straightening of body part after it has been flexed

Question 18

hyperextension

Answer 18

bending joint or limb past normal point of extension or range of motion

Question 19

dorsiflexion

Answer 19

movement of sole of foot upward (flexed foot)

Question 20

plantar flexion

Answer 20

movement of sole of foot away from body (pointed toes)

Question 21

rotation

Answer 21

movement of body part around longitudinal axis

Question 22

medial rotation

Answer 22

internal; rotating inward (towards midline)

Question 23

lateral rotation

Answer 23

external; rotating outward (away from midline)

Question 24

pronation

Answer 24

rotating forearm to face downward

Question 25

supination

Answer 25

rotating forearm to face upwards

Question 26

circumduction

Answer 26

rotation of arm or leg as if drawing a circle

Question 27

frontalis

Answer 27

forehead; raise eyebrows, wrinkles forehead

Question 28

trapezius

Answer 28

upper back and neck; extends neck, elevates, adducts, and rotates scapula

Question 29

deltoid

Answer 29

external shoulder; abducts, flexes, extends, and rotates arm

Question 30

pectoralis major

Answer 30

chest; flexes, adducts, and rotates arm

Question 31

triceps brachii

Answer 31

posterior upper arm; extends forearm

Question 32

biceps brachii

Answer 32

anterior upper arm; flexes arm and forearm, supinates (rotates) hand

Question 33

latissimus dorsi

Answer 33

midback and lower spine; extends, adducts, and rotates arm

Question 34

abdominal muscles

Answer 34

ribs to pubic bone; flex and rotate trunk

Question 35

gluteus medius

Answer 35

medial muscles to buttocks, outer surface of belvis; adducts and rotates thigh

Question 36

gluteus maximus

Answer 36

outer muscle of buttocks; extends and rotates thigh

Question 37

sartorius

Answer 37

anterior thigh (crosses thigh obliquely; flexes thigh, extends leg

Question 38

biceps femoris

Answer 38

hamstring; posterior thigh; extends thigh, flexes and rotates leg

Question 39

rectus femoris

Answer 39

quadricep; anterior thigh; flexes thigh, extends leg

Question 40

gastrocnemius

Answer 40

prominent muscle in posterior calf; flexes foot and leg

Question 41

tibialis anterior

Answer 41

anterior lower leg; dorsiflexes and inverts foot