MICROANATOMY

MUSCLE NERVE CARTILAGE BONE

SKELETAL MUSCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A smooth, sustained contraction is called ____
A
ATP
B
synaptic cleft
C
tetanus
D
motor unit
Explanation: 

Detailed explanation-1: -This phenomenon of sustained contraction is called tetany. The length-tension relationship in muscle illustrates the tensions, or forces, produced from the cross-bridge cycle as a result of changes in muscle fiber length.

Detailed explanation-2: -tetanus: When the frequency of muscle contraction is such that the maximal force is tension is generated without any relaxation of the muscle. summation: The occurrence of additional twitch contractions before the previous twitch has completely relaxed.

Detailed explanation-3: -They are resistant to fatigue. They have a rapid onset of contractions. They cannot exhibit tetanus.

Detailed explanation-4: -A sustained muscle contraction means that after the contraction of the muscle there is a prolonged contraction that is maintained in the muscle.

Detailed explanation-5: -Tetanus is the fusion of contractions to produce a continuous contraction.

There is 1 question to complete.