Jeopardy 9 Muscles And Muscle Tissue

Front 1

Theconnective tissue that covers each myofiber is the ________.

Back 1

endomysium

Front 2

Asheet like extension of the epimysium is called

Back 2

aponeurosis

Front 3

Thickfilaments are found in the ________ of the sarcomere.

Back 3

A-band

Front 4

Ina resting muscle cell the myosin binding sites are blocked by

Back 4

tropomyosin

Front 5

Thet-tubules are an extension of the

Back 5

sarcolemma

Front 6

Whena muscle cell is at rest most of the intracellular calcium is found in the

Back 6

endoplasmicreticulum

Front 7

Calciumions will bind to ________ when present in the sarcoplasm

Back 7

troponin

Front 8

Whatsubstance must bind to myosin heads in order for the heads to detach from thethin filaments?

Back 8

ATP

Front 9

Calciumis released from the terminal cisternae in response to

Back 9

an action potential

Front 10

Howdoes calcium re-enter the terminal cisternae after muscle contraction isfinished?

Back 10

active transport

Front 11

Asingle contraction in response to a single threshold stimulus is defined as

Back 11

twitch

Front 12

Theforce exerted by a contracting muscle is

Back 12

muscle tension

Front 13

Thetime that elapses between the stimulation of a muscle and the contraction ofthat muscle is defined as

Back 13

latent period

Front 14

Whichtype of muscle contraction occurs when the muscle neither shortens norlengthens during contraction?

Back 14

isometric

Front 15

Skeletalmuscle contractions increase in strength due to }.

Back 15

. recruitment of motor units

Front 16

Theenergy source that is used directlyfor muscle contraction is

Back 16

ATP

Front 17

Musclesoreness may be due in part to which pathway of ATP production?

Back 17

anaerobic glycolysis

Front 18

Afterabout 30 minutes of exercise what substance becomes the major source of fuel?

Back 18

fattyacid

Front 19

Whichactivity will be most dependent upon creatine?

Back 19

diving

Front 20

Allof the following can occur during exercise except

Back 20

inorganic phosphate levels decrease

Front 21

Whichof the following is present in smooth muscle?

Back 21

sarcolemma

Front 22

Smoothmuscle cells can contract as a unit due to the presence of

Back 22

gap junctions

Front 23

Calciumbinds to this substance in smooth muscle.

Back 23

calmodulin

Front 24

Smoothmuscle contains ________ that correspond to the Z-discs of skeletal muscle.

Back 24

dense bodies

Front 25

Whatunique characteristic of smooth muscle allows your stomach to stretch as youeat and not contract immediately to expel food?

Back 25

stress-relaxation response