Ch 11 EOC

Question 1

A sarcomere is the X unit of x

Answer 1

contractile, nonsmooth muscle cells

Question 2

Sequence

Answer 2

Impulse along axon, protein attaching to myosin binding site, power stroke

Question 3

Skeletal Thin myofilaments Contain

Answer 3

troponin

Question 4

Skeletal Thin myofilaments have M-

Answer 4

Myosin binding sites

Question 5

Skeletal thin myofilaments interact with X ion

Answer 5

calcium

Question 6

What discs are thin filaments attached to?

Answer 6

Z

Question 7

Multiple threshold stimulations on muscle fiber tension

Answer 7

wave summation

Question 8

Contracting muscle getting longer

Answer 8

Eccentric

Question 9

Endurance training doesn’t increase

Answer 9

Amount of stored glycogen

Question 10

Needed only for smooth muscle contraction

Answer 10

Calmodulin

Question 11

Connective tissue covering skeletal muscle fascicle

Answer 11

Cisternae

Question 12

Not related to where graded potential develops on a cell

Answer 12

Troponin

Question 13

Not related to s muscle funxn

Answer 13

Phosphocreatine

Question 14

Type 1 skeletal myofibers have a X diameter than 2

Answer 14

Larger

Question 15

Do type 1 skeletal myofibers do glycolysis?

Answer 15

Yes

Question 16

Do type 1 contract faster than type 2?

Answer 16

Yes

Question 17

Can type 1 store omre glycogen than type 2?

Answer 17

no

Question 18

Repaying oxygen debt

Answer 18

Resynthesizing creating phosphate
More glycogen
Less lactic acid
More oxygen to myoglobin

Question 19

Tension<load

Answer 19

Isometric/tonic

Question 20

Resistance training does not increase

Answer 20

Myoglobin’s ability ot bind oxygen

Question 21

Varicosities aren’t associated with

Answer 21

Motor end plates

Question 22

X causes contraction of muscle cells

Answer 22

Ach

Question 23

Skeletal muscle withouth relaxation

Answer 23

Tetanus

Question 24

Treppe

Answer 24

Individual twitch tension can increase because more calcium is available

Question 25

Size principle

Answer 25

Smaller units before larger ones

Question 26

Automaticity

Answer 26

Cardiac muscle cells depolarizing and contracting automatically

Question 27

Kinas

Answer 27

Phosphorylates light chain region on myosin in smooth myofibers

Question 28

Contractile units in skeletal myofibers are called X, in myofibrils

Answer 28

Sarcomeres

Question 29

Tension through skeletal myofibers X X stretchable componenets

Answer 29

Series elastic

Question 30

Muscle contractions producing movemetn

Answer 30

Isotonic

Question 31

X X are pouch like regions of the SR that store calcium ions which can be used for muscle contraction

Answer 31

Terminal cisternae

Question 32

Myosin crossbridge pulling on an actin filament, producing tension

Answer 32

Power stroke

Question 33

X anchors a skeletal muscle to a bone. Dense regular connective tissue

Answer 33

Tendon

Question 34

Sarcomere extends between 2 X, each in the middle of an I band

Answer 34

Z discs

Question 35

Graph showing muscle tension in a muscle

Answer 35

Myogram

Question 36

A ryanodine receptor (RyR) is on a X channel in the X,

Answer 36

calcium, SR membrane.

Question 37

. More cristae would likely be found in type X skeletal myofibers than in type X myofibers.

Answer 37

few muscle cells

Question 38

8. Muscle tone is the result of a X contracting within a whole muscle.

Answer 38

few muscle cells

Question 38

3. Treppe can be experienced by a single skeletal X

Answer 38

myofiber.

Question 39

. Myofilaments are within

Answer 39

sarcomeres.

Question 40

ATP must bind to X before a X can occur in any myofiber.

Answer 40

myosin, recovery stroke