A shallow groove on the surface of the cerebral cortex is called a
A. ventricle.
B. gyrus.
C. sulcus.
D. lobe.
Answer: C
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A long bone forms by a process known as ________ ossification.
Fill in the blank(s) with the appropriate word(s).
This is a sagittal section through the abdominopelvic cavity. What serous membrane does "C" represent?
A. Visceral peritoneum (covers organs) B. Mesentery C. Retroperitoneal organs D. Parietal peritoneum (lines cavity) E. Peritoneal cavity
Antigen-presenting cells are ________, and they display antigens to both ________ and ________.
A. any anucleate cell; helper T-lymphocytes; cytotoxic T-lymphocytes B. any blood cell; helper B-lymphocytes; cytotoxic B-lymphocytes C. immune cells; helper T-lymphocytes; cytotoxic T-lymphocytes D. immune cells; B-lymphocytes; T-lymphocytes E. any nucleated cell; B-lymphocytes; T-lymphocytes
During an ________ contraction, the length of the muscle does not change.
Fill in the blank(s) with the appropriate word(s).