Test three bioskeletal

Question 1

excitability

Answer 1

ability to receive and respond to a stimulus

Question 2

contractility

Answer 2

ability of a muscle to contract and produce a force

Question 3

other word for contractility

Answer 3

irritability

Question 4

extensibility

Answer 4

ability of a muscle to be stretched without tissue damage

Question 5

elasticity

Answer 5

ability of a muscle to return to its original shape after shortening or extension

Question 6

epimysium, perimysium and endomysium leave muscle to form

Answer 6

tendon

Question 7

sarcolemma adheres to the

Answer 7

epimysium

Question 8

periosteum is fused with

Answer 8

the tendon

Question 9

the sarcoplasmic reticulum runs parallel with

Answer 9

the muscle fiber

Question 10

what is the function of the cisternae of the SR

Answer 10

container of SR, calcium is kept here and released into SR

Question 11

T-tubules function

Answer 11

run into muscle and take action potential into deep parts of the muscle from the nerves

Question 12

mitochondria function

Answer 12

aerobic power house of the cell

Question 13

what is force generated in muscle

Answer 13

the amount of acceleration changes at different joint angles

Question 14

the force generated by a muscle fiber is directly proportional to

Answer 14

the number of myosin cross-bridges that are bound to actin

Question 15

motor unit

Answer 15

a single motor neuron and all the muscle fiber it innervates

Question 16

low innervation control then

Answer 16

precise motor control

Question 17

high innervation control then

Answer 17

gross motor control

Question 18

sedentary people have what type of muscle fiber

Answer 18

50% slow and 50% fast

Question 19

twitch is also known as

Answer 19

activation

Question 20

what is rate of force development and relaxation

Answer 20

time frame from when receive signal to reach peak force and back to relax state

Question 21

peak tension is typically greater for

Answer 21

fast twitch than slow twitch

Question 22

what is the rate of force development and relaxation for fast twitch

Answer 22

faster rate of force development and relaxation

Question 23

agonist

Answer 23

acts to cause a movement

Question 24

antagonist

Answer 24

acts to slow or stop a movement

Question 25

stabilizer

Answer 25

acts to stabilize a body part against some other force

Question 26

neutralizer

Answer 26

acts to eliminate an unwanted action produced by an agonist

Question 27

synergist

Answer 27

acts to perform the same action as another muscle

Question 28

neutralizer

Answer 28

acts to keep bond, ligament, tendon, muscle in the correct path

Question 29

coordination uses

Answer 29

antagonist, stabilizer and neutralizer with agonist

Question 30

concentric

Answer 30

fibers shorten

Question 31

eccentric

Answer 31

fibers lengthen

Question 32

isometric

Answer 32

no length change

Question 33

action potential

Answer 33

series of events in muscular contraction that are set in motion by an electrical motor nerve impulse

Question 34

excitation contraction coupling

Answer 34

series of events in which the action potential makes its way to the muscle cell and initiates the contractile process

Question 35

cross bridge cycling continues as long as

Answer 35

calcium levels are sufficient in quantity to bind to troponin

Question 36

what factors affect force production

Answer 36

cross sectional area, frequency of stimulation, spatial recruitment, velocity of shortening, muscle length, action of the series elastic component, muscle architecture, electromechanical delay, muscle temperature, and genotype

Question 37

frequency of stimulation also known as

Answer 37

temporal summation

Question 38

temporal is can be related to

Answer 38

time or how quickly

Question 39

hypertrophy

Answer 39

increase in the number of myofibrils and myofilaments

Question 40

hyperplasia

Answer 40

increase in the number of fibers