The fibers that carry the action potentials that cause skeletal muscle to contract are ________
A) anulospiral endings
B) extrafusal fibers
C) intrafusal fibers
D) gamma motor neurons
E) alpha motor neurons
E
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In the anatomic position, the specimen rests horizontally on the examination table and the arms are extended away from the torso.
Indicate whether this statement is true or false.
This structure physically separates the pelvic cavity from the abdominal cavity.
a. mediastinum b. diaphragm c. mesenteries d. none of the above
Which of the following minerals is mismatched with its function?
A. calcium - bone formation B. zinc - hemoglobin synthesis C. potassium - muscle and nerve function D. cobalt - erythrocyte production E. selenium - component of many enzymes
The SA node is located in the ________.
A. right atrium near the junction with the interatrial septum B. right atrium near the junction with the interventricular septum C. left atrium near the junction with the interventricular septum D. right atrium at the junction of the superior vena cava