Muscular System - 7.3 Questions With Complete Solutions

Muscular System - 7.3 Questions With Complete Solutions

A bursae is a sack-like structure filled with:

Select one:
a. blood plasma
b. blood
c. synovial fluid
d. lymph Correct Answers c

A motor neuron and all the muscle cells it stimulates are called a
motor unit. Correct Answers true

A motor neuron and all the muscle cells it stimulates are called a
neuromuscular junction. Correct Answers false

A single motor neuron with all the muscle cells it innervates is
called a:

Select one:
a. motor unit
b. neuromuscular junction
c. neurotransmitter
d. both b and c above Correct Answers a

a. Another name for the voluntary muscle
b. The attachment to the bone that moves during muscle
contraction
c. The protein that makes up the thick myofilament
d. The attachment point to the point that is stationary during
contraction

, e. Another name for visceral muscle
f. The protein that makes the thin myofilament Correct Answers
a. skeletal muscle
b. insertion
c. myosin
d. origin
e. smooth muscle
f. actin

According to the sliding filament model, in order for a
sarcomere to contract:

Select one:
a. bridges must form between actin and myosin
b. calcium must be released from the endoplasmic reticulum
c. ATP must be broken down for energy
d. all of the above Correct Answers d

All motor units in a given muscle have the same threshold
stimulus. Correct Answers false

All muscles specialize in contraction or shortening. Correct
Answers true

Another name for aerobic training is strength training. Correct
Answers false

Another name for skeletal muscle is:

Select one:
a. cardiac muscle