muscular system

Question 1

two types of muscle

Answer 1

involuntary

voluntary

Question 2

involuntary muscle

Answer 2

can’t control

Question 3

voluntary muscle

Answer 3

can control

Question 4

two types of involuntary muscle

Answer 4

cardiac

smooth

Question 5

type of voluntary muscle

Answer 5

skeletal

Question 6

skeletal muscle characteristics

Answer 6

attached to bones
striated
voluntary

Question 7

cardiac muscle characteristics

Answer 7

striated
disks
involuntary

Question 8

smooth muscle characteristics

Answer 8

non striated
tapered on ends
digestive tract

Question 9

what is a sarcomere

Answer 9

basic unit of a muscle

made up of two kinds of myofilaments, actin and myosin

Question 10

actin

Answer 10

thin

Question 11

myosin

Answer 11

thick

Question 12

explain how a sarcomere contracts

Answer 12

based off of an impulse

reach, grab and slide together

Question 13

motor unit

Answer 13

motor neuron and all the muscle fibers it attaches to

delicate or strong

Question 14

threshold stimulus

Answer 14

the minimal stimulation required to make muscles contract

Question 15

all or non principal

Answer 15

tetanus

complete contraction of a muscle fiber

Question 16

three functions of skeletal muscle

Answer 16

movement
posture and muscle tone
body temperature

Question 17

three types of muscle movers

Answer 17

agonists
antagonists
synergists

Question 18

agonist

Answer 18

prime mover

Question 19

antagonist

Answer 19

opposite movement

Question 20

synergist

Answer 20

assists and stabilizes the agonist

Question 21

how to muscles help maintain body temperature

Answer 21

contraction produces heat

Question 22

tonic contractions

Answer 22

continuous, low strength muscle contractions to help maintain posture

Question 23

tetanic contractions

Answer 23

sustained contraction with many twitches

Question 24

twitch contractions

Answer 24

quick, jerky response to stimulus

Question 25

atrophy

Answer 25

lack of exercise which leads to muscle loss

Question 26

hypertrophy

Answer 26

increase of muscle size due to exercise

Question 27

endurance training

Answer 27

aerobic increases endurance increases number of blood vessels and mitochondria in muscle fibers

Question 28

strength training

Answer 28

resistance exercises increases number of myofilaments makes muscle fibers larger

Question 29

two main types of muscle contraction

Answer 29

isotonic | isometric

Question 30

isotonic

Answer 30

involves movement

Question 31

isometric

Answer 31

no movement, tense

Question 32

two types of isotonic contractions

Answer 32

concentric | eccentric

Question 33

concentric contraction

Answer 33

muscle shortens | causes joint movement

Question 34

eccentric contractions

Answer 34

muscle lengthens | controls joint movement