The amount of blood returning to the heart is the
A) afterload.
B) stroke volume.
C) end-diastolic volume.
D) cardiac reserve.
E) venous return.
E
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Which of the following is true of spongy bone?
A. Lamellae are arranged in concentric circles in osteons. B. Nourishment is supplied through a central canal. C. Bone is arranged in plates called trabeculae. D. Arrangement of the bony plates is completely random. E. The spaces are filled with yellow marrow.
The two vertebrae that articulate to allow pivoting of the head are atlas and axis.
Answer the following statement true (T) or false (F)
Both chemical and mechanical digestion start in the mouth and continue in the stomach.
Answer the following statement true (T) or false (F)
While out hiking, a friend of yours falls and suffers a trauma. You notice they start to go into shock. What do you do to help?
A. Encourage them to sit up B. Lie them down and elevate their legs C. Hold them upright in a standing position D. Lie them down and elevate their head