Chapter 7

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muscle fatigue

Decreasing tension in a muscle due to lowering levels of ATP is called

contract quickly

Fast fibers

oxygen debt

The amount of oxygen needed to support the conversion of lactic acid to glycogen is called the

sarcomere

The area between Z lines is the

decompose

The enzyme acetylcholinesterase caused acetylcholine to

to transmit muscle impulse to the cell's interior

What is the function of the transverse tubule?

retracts the shoulder and adducts the scapula

Which of the following describes the action of a trapezius?

red muscles are slower than white muscles

Which of the following is true about red muscles?

deltoid

Which of the following moves the humerus

ATP

A muscle cramp is most likely due to lack of

aerobic respiration

A resting muscle generates most of its ATP by

muscle tone

An example of partial but sustained contraction is

epimysium

Connective tissue that surrounds an entire muscle is called

supply energy to synthesize ATP

Creatine phosphate serves

refers to the process of anaerobic respiration

Glycolysis

latent period

In a recording of a muscle twitch, the delay between the stimulus and the muscle response is called the

calcium ions

In response to action potentials arriving from the transverse tubules, the sarcoplasmic reticulum

smooth

Nonstriated, involuntary muscle is

perimysium

Muscle fascicles are separated by

actin and myosin

Myofibrils are made primarily of

oxygen

Myoglobin stores

have many nuclei

Skeletal muscle fibers differ from "typical cells" in that these muscle fibers

the ability to produce large amounts of the enzymes and structural proteins need for contraction

The advantage of having many nuclei in a skeletal muscle fiber is

supraspinatus

The minor abductor of the upper arm that works as a synergist is the

triceps brachii

The muscle that extends the arm while doing push-ups is the

pectoral girdle

The rotator cuff refers to muscles surrounding the

myofibrils

The skeletal muscle organelles that actually contracts is (are) the

sarcoplasmic reticulum

The skeletal muscles store calcium ions in the

sarcomere arrangement

The striated appearance of skeletal muscle results from

sarcoplasmic reticula

The terminal cisternae are parts of the


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