Chapter 7
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
