In the photomicrograph of a portion of thick skin shown below, which layer is the stratum spinosum?
a) A
b) B
c) C
d) D
e) E
Answer: d
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On day 14 of a typical 28-day menstrual cycle, LH concentration in the blood will be ________. The endometrium will be ________. Estrogen concentration in the blood is ________.
A. at or near a peak; in the secretory phase; low B. level; starting the proliferative phase; level but high C. at or near a peak; near the end of the proliferative phase; relatively high D. level; sloughing off; low E. low but rising; in the secretory phase; high
Which of the following lists the levels of human structure from the most complex to the simplest?
A. Organ system, organelle, tissue, cell, organ B. Organelle, cell, tissue, organ, organ system C. Organ system, organ, cell, tissue, organelle D. Organ, organ system, tissue, cell, organelle E. Organ system, organ, tissue, cell, organelle
Which of the following is true regarding the production of intestinal juice?
A) Most of the fluid is actively transported into the lumen. B) The pancreas is the source for most of the intestinal juice. C) Intestinal juice is produced following activation by motilin. D) Local reflexes and parasympathetic stimulation increase the production of intestinal juice. E) The cephalic phase of gastric secretion produces intestinal juice.
Which of the light micrographs in the figure below shows a simple columnar epithelium?
a) A b) B c) C d) D e) E