What type of cells make up about 90% of the alveolar surface?
A. ciliated simple squamous epithelial cells
B. Type I pneumocytes
C. Type II pneumocytes
D. macrophages
B
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Of the three regions of the small intestine, the terminal (end) portion is the ________.
Fill in the blank(s) with the appropriate word(s).
Shelly has a hormone-secreting tumor of the adrenal gland. The tumor is causing her to have a deep voice, grow extensive body hair, and stop menstruating. This tumor probably involves cells of the
A) zona glomerulosa. B) zona fasciculata. C) zona reticularis. D) adrenal medulla. E) pars intermedia.
Oxyhemoglobin gives blood a dark maroon color.
Answer the following statement true (T) or false (F)
Which parts of the nervous system work together to provide much of the body's homeostasis?
A. Diencephalon and basal nuclei B. Hypothalamus and brainstem C. Cerebrum and midbrain D. Hippocampus and thalamus