The ability of a male to ejaculate is due to the action of ________.
A) parasympathetic nerves
B) the dartos muscle
C) luteinizing hormone
D) the bulbospongiosus muscles
D) the bulbospongiosus muscles
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Which of the following statements regarding phagocytes and phagocytosis is TRUE?
A. Macrophages, monocytes, and mast cells are phagocytes. B. Contact of phagocytes with microbes stimulates the phagocytes to release chemicals that mediate the inflammatory response. C. Phagocytosis is a process that only occurs within the bloodstream. D. Phagocytosis is stimulated by the presence of proteins called rhodopsins. E. Phagocytosis is the process by which leukocytes exit the bloodstream.
Chemistry is important to the study of physiology because
A) all of the above. B) chemical reactions enable our bodies to extract energy from nutrients. C) the foods that we eat are chemicals. D) body functions depend on cellular functions that reflect chemical changes.
Tracey has been experiencing a fever and a feeling that she needs to urinate every few minutes, even though she has a very low urine volume. She goes to her doctor who tells her that she has a bacterial infection of her bladder. An ultrasound of her ureters indicates that there is no infection in the ureters. Where did the infection begin?
A. Her nephrons B. Her urethra C. Her renal arteries D. Her renal pelvis E. None of these sites
Tina is a hard-working sales clerk in a busy department store. She has stood completely still behind the check-out counter for an 8-hour shift. At the end of Tina's shift, she finds that she feels somewhat dizzy and guesses that her blood pressure is quite low. When Tina gets home she also notices that her ankles are swollen. What physiological issue is most likely to blame in this scenario?
A. High hydrostatic pressure in lower leg capillaries B. Reactive hyperemia to lower leg tissues C. High osmotic pressure in her lower leg capillaries D. Lymphatic blockage in her lower legs E. None of these, the swelling is unrelated to cardiovascular issues