All embryonic germ layers (endoderm, mesoderm, and ectoderm) contribute to ear formation.
Answer the following statement true (T) or false (F)
True
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Fibers that connect areas of the cerebral cortex within the same hemisphere are
A) projection fibers. B) commissural fibers. C) association fibers. D) all of the above.
Which of the following peripheral nervous system (PNS) neuroglia form the myelin sheaths around larger nerve fibers in the PNS?
a. Stem Cells b. Scwann Cells c. Glial Cells d. Satellite Cells
Which of the following descriptions best matches the function of platelets?
A) adhere to collagen beneath endothelium B) helper cells are one type C) produce antibodies in response to antigens D) kill bacteria using hydrogen peroxide E) often elevated in allergic individuals
What is the function of the structure labeled "6"?
A) strains materials entering the stomach B) regulates release of chyme into the duodenum C) mixes stomach juice into food D) controls contraction of stomach muscles E) prevents food from entering the esophagus