Continuous capillaries
A. are freely permeable to large molecules such as hormones.
B. have a wall where the endothelial cells fit very tightly together.
C. are more permeable than fenestrated capillaries but not as permeable as sinusoidal capillaries.
D. have many thin areas called fenestrae.
E. are characterized by continuous pores.
Answer: B
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Plasma cells ________
A) have a great deal of rough endoplasmic reticulum reflecting the fact that they secrete a tremendous amount of protein (antibody) B) are small so that they slip between endothelial cells of capillaries to fight infection in the surrounding tissues C) have a great deal of rough endoplasmic reticulum to dispose of ingested pathogens D) are large so that they can envelope their prey by phagocytosis
The study of body structure is called
A) physiology. B) homeostasis. C) anatomy. D) positive feedback. E) negative feedback.
Oxygen that is entirely devoid of moisture:
A) is less combustible than humidified oxygen. B) will dry the patient's mucous membranes quickly. C) is optimum for patients requiring long-term oxygen. D) should be given in conjunction with bronchodilators.
The muscle that helps you to sit "cross-legged" is the
A. sartorius. B. gluteus medius. C. iliopsoas. D. rectus femoris.