Identify the highlighted structure.
spermatogonia
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During extreme bouts of exercise, inspiration may be aided by (the)
A) diaphragm and external and internal intercostal muscles. B) intrinsic back muscles and the scalenus anterior and medius. C) serratus anterior and levator scapulae. D) rectus abdominis, external and internal oblique, and the transversus abdominis. E) All of the answers are correct.
Each of the following factors promotes the function of the capillaries except
a. a blood pressure forcing fluid out of these vessels b. a small total surface area c. an osmotic pressure drawing fluid into these vessels d. pores in the endothelial wall e. thin walls
Polycythemia arises from an excess or abnormal increase in the number of white blood cells
Indicate whether the statement is true or false
Lymph nodes contain blood sinuses, and red and white pulp
Indicate whether the statement is true or false.