Anat/Phys Muscular System #2 Question Preview (ID: 41431)


Anat/Phys Explorations. TEACHERS: click here for quick copy question ID numbers.

The molecule only found in muscle cells and acts to add a phosphate to ADP to make ATP is
a) myoglobin.
b) creatine phosphate.
c) myosin.
d) actin.

All are arrangements of muscle fascicles EXCEPT
a) pennate.
b) circular.
c) convergent.
d) trapezoid.

All of the following are used to name muscles EXCEPT
a) location.
b) movement.
c) size.
d) types of muscle fibers.

A muscle that helps the primary muscle in the movement of joint is a(n)
a) antagonist.
b) prime mover.
c) agonist.
d) synergist.

What is produced during anaerobic respiration that causes muscles to burn?
a) pyruvic acid
b) oxaloacetic acid
c) lactic acid
d) acetyl CoA

Which of the following is made of actin?
a) thin filaments
b) thick filaments
c) M line
d) thin filaments and the M line

In a sarcomere, the A band contains
a) only thick filaments.
b) only thin filaments.
c) thick and thin filaments.
d) no filaments.

The functional contractile unit of a muscle cell is
a) the sarcolemma.
b) the sarcoplasmic reticulum.
c) the sarcomere.
d) the T tubules.

Which structure stores and releases calcium inside a muscle cell?
a) mitochondrion
b) sarcoplasmic reticulum
c) sarcolemma
d) myofilaments

A contraction in which the muscle does not shorten is called
a) isotonic.
b) isometric.
c) isosceles.
d) isostatic.

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