Muscle Misc

Question 1

What is the most accurate description of an isometric contraction?
A. When the force exceeds the load and no movement occurs
B. When the force exceeds the load and movement occurs
C. When the force is less than the load and movement occurs
D. When the force is less or equal than the load and no movement occurs
E. When the force is equal to the load and movement occurs

Answer 1

D

Question 2

The strength of skeletal muscle contraction depends on:
A. The size of motor units
B. The number of motor units that are stimulated
C. The length of the somatic motor neuron
D. Both the size and number of the motor units activated
E. The size and number of motor units activated as well as the length of the motor neuron

Answer 2

D

Question 3

Which type of muscle fiber will develop maximal tension the quickest?
A. Slow-twitch oxidative (type 1)
B. Fast twitch oxidative-glycolytic (type 2A)
C. Fast twitch glycolytic (type 2B)
D. Both fast twitch fibers (2A and 2B) will be equal quickest
E. All fibres develop maximal tension at the same rate

Answer 3

C

Question 4

Which of the following is an adaptive change in skeletal muscle to exercise?
A. Increased blood flow to muscle
B. Increase in mitochondria stores
C. Decrease in myoglobin
D. Increase in temperature
E. Delayed onset muscle soreness (DOMS)

Answer 4

B

Question 5

What is the most accurate description of an eccentric contraction?
A. When the force exceeds the load and no movement occurs
B. When the force exceeds the load and movement occurs
C. When the force is less than the load and movement occurs
D. When the force is less or equal than the load and no movement occurs
E. When the force is equal to the load and movement occurs

Answer 5

C