List four factors that affect normal body growth.
What will be an ideal response?
1. growth hormone and other hormones
2. adequate diet
3. absence of stress
4. genetics
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This figure illustrates the microscopic anatomy of spongy bone. Which number indicates a central canal?
A. 1 B. 2 C. 4 D. 5 E. None of the choices is correct.
Lymphedema can result from _____. Select one:
a. infection b. obstruction of a lymph vessel c. surgical removal of a lymph node d. all choices
Which of the following statements is false?
A. The sympathetic division has more influence under conditions of physical activity than does the parasympathetic division. B. Structures receiving dual innervation by the ANS are regulated equally by both divisions. C. Both divisions cooperate to achieve normal reproductive function. D. Dual innervation of organs by both divisions of the ANS is not universal. E. Both divisions of the ANS can produce stimulatory effects.
The superior thoracic aperture:
A) is bounded posteriorly by the axis. B) is bounded anterolaterally by the clavicle. C) is bounded anteriorly by the trachea. D) is a larger opening than the inferior thoracic aperture. E) is, anatomically, the thoracic inlet.