#3

Question 1

skeletal muscles are responsible for moving

Answer 1

bones

Question 2

what chemical helps to regenerate ATP

Answer 2

creatine phosphate

Question 3

muscle fibers are made of individual fibers ( not filaments) called

Answer 3

myrofibril

Question 4

connective tissue that surrounds fasicles is

Answer 4

perimysium

Question 5

poisons such as botulism that prevent the release of acetylcholine would cause muscles to

Answer 5

contract

Question 6

voluntary

Answer 6

skeletal

Question 7

involuntary

Answer 7

smooth, cardiac

Question 8

what neurotransmitter is associated with the muscles

Answer 8

acetycholine

Question 9

makes up the heart

Answer 9

cardiac

Question 10

found in digestive system

Answer 10

smooth

Question 11

what cell organelle provides atp needed for muscle activity

Answer 11

mitochondria

Question 12

the gap between the nerve and the muscle is called the

Answer 12

synapse

Question 13

muscles grow/ enlarge

Answer 13

hypertrophy

Question 14

muscle shrinkage/ become smaller

Answer 14

atrophy

Question 14

a person who has a disease that inhibits the production of cholinesterase would have what kind of symptoms

Answer 14

muscles stay contracted

Question 15

cholinesterase is an enzyme that breaks down

Answer 15

acetylcholine

Question 16

during a muscle contraction, cross bridges from between what two structures

Answer 16

actin and mysoin

Question 17

in a sacomere, the band I is made of

Answer 17

actin

Question 18

band A is made of

Answer 18

mysoin

Question 19

the dark and light fibers of the muscles give cells a ____ appearance

Answer 19

striated

Question 20

the energy source for muscle contraction is

Answer 20

ATP

Question 21

vesicles in the motor neuron store what substance

Answer 21

acetycholine

Question 22

when recruitment occurs, the number of motor units being activated

Answer 22

increase

Question 23

sustained contraction of individual fibers, even when muscle is at reset is known as

Answer 23

muscle/ tone

Question 24

the immovable ends of the muscle is the

Answer 24

origin

Question 25

the movable end of the muscle is

Answer 25

insertion

Question 26

muscle fatigue is likely due to a buildup of

Answer 26

lactic acid

Question 27

a sacromere is defined as the region between two

Answer 27

z lines

Question 28

the condition where a body becomes stiff after death is called

Answer 28

rigor mortis

Question 29

when atp has been used it becomes

Answer 29

ADP

Question 30

what is a motor unit

Answer 30

a neuron and the skeletal muscle fibers

Question 31

myofibrils are composed of

Answer 31

muscle fibers

Question 32

the muscle fiber membrane is specialized to form a _____ at the neuromuscular junction

Answer 32

motor end plate

Question 33

which type of connective tissue surrounds fascicles ( bundles)

Answer 33

perimysium

Question 34

what type of tissues surrounds the entire muscle

Answer 34

epimysium

Question 35

the substance that crosses the gap between a neuron and a muscle fiber is the

Answer 35

acetylcholine

Question 36

tendons connect ____ to ____

Answer 36

muscle, bone

Question 37

bundles of muscle fibers are called

Answer 37

fascicles

Question 38

the minimum amount of stimulus required for a muscle contraction to occur is the

Answer 38

threshold

Question 39

what model explains how muscles contract

Answer 39

sliding filament theory

Question 40

the A bands are

Answer 40

dark

Question 41

the I bands are

Answer 41

light