What muscle forms the posterior aspect of the upper arm and what action does it perform at the elbow joint?
What will be an ideal response?
Answer: Triceps Brachii, Extension
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What happens to the diaphragm when it contracts?
A. It becomes dome-shaped and aids in expiration. B. It becomes dome-shaped and aids in inspiration. C. It becomes flatter and aids in inspiration. D. It becomes flatter and aids in expiration.
Approximately the last 15 cm of the digestive tract is the
A) anus. B) anal canal. C) rectum. D) sigmoid colon. E) rectal column.
The narrow space that separates the motor neuron and the skeletal muscle fiber in a neuromuscular junction is called the
A. motor end plate. B. synaptic vesicle. C. synaptic cleft. D. synaptic knob.
Which of the following is not a result of parasympathetic stimulation?
A) salivation B) dilation of the pupils C) increased peristalsis of the digestive viscera D) elimination of urine