Peristalsis is the involuntary contraction and relaxation of the muscles of the digestive tract that assist in moving food and waste through. The muscles controlling peristalsis must be skeletal muscle.
Answer the following statement true (T) or false (F)
False
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The spinous process of the scapula is located on the anterior scapula.
Answer the following statement true (T) or false (F)
Which of the channels shown in the figure opens and closes randomly?
a) A b) B c) C d) D e) All of these choices
Answer the following statements true (T) or false (F)
1. The force of muscle contraction is controlled by multiple motor unit summation or recruitment. 2. Eccentric contractions are more forceful than concentric contractions. 3. A motor neuron and all the muscle cells that it stimulates are referred to as a motor end plate. 4. Peristalsis is characteristic of smooth muscle. 5. A contraction in which the muscle does not shorten but its tension increases is called isometric.
Structure L is the
A) ciliary body.
B) pupil.
C) lacrimal canal.
D) macula.
E) optic disc.