Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as:
A) sebaceous. B) ceruminous. C) endocrine. D) exocrine.
Answer: C
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Ependymal cells beat their cilia to help circulate cerebrospinal fluid (CSF)
Indicate whether the statement is true or false
Pulmonary ventilation is the product of
a. residual volume and respiratory rate. b. anatomic dead space and respiratory rate. c. tidal volume and inspiration capacity. d. residual volume and expiration capacity. e. tidal volume and respiratory rate.
This is a sagittal section through the abdominopelvic cavity. What serous membrane does "B" represent?
A. visceral peritoneum (covers organs) B. mesentery C. parietal peritoneum (lines cavity) D. retroperitoneal organs E. peritoneal cavity
Cytotoxic T cells destroy their target cells by releasing perforin, which causes holes to form in
A. ribosomes. B. DNA molecules. C. lysosomes. D. cell membranes.