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Phys Final
| Question | Answer |
|---|---|
| The set of coordinated commands that control the programmed muscle activity mediated by extrapyramidal pathways is called the | motor program. |
| Which ear structures are responsible for the amplification and transfer of sound from the external ear to the inner ear? | Stapes |
| The immediate effect of a steroid hormone on a cell is the: | activation of adenyl cyclase. |
| Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: | erythroblasts. |
| The fastest nerve fibers in the body can conduct impulses up to approximately _____ meters per second. | 130 |
| During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? | It flows into the ductus venosus. |
| During their residence in the thymus, pre-T cells develop into _____, cells that proliferate as rapidly as any in the body | thymocytes |
| Stimulation of gastric juice secretion occurs in all of the following phases except the _____ phase. | digestive |
| Peristalsis is regulated in part by the intrinsic stretch reflexes. It is also thought to be stimulated by the hormone | cholecystokinin (CCK) |
| Saliva contains the enzyme | amylase. |
| The hormone that inhibits gastric muscle, slowing passage of food into the duodenum, is called: | gastric inhibitory peptide. |
| The hormone thought to be a messenger causing release of digestive enzymes from the intestinal mucosa is | vasoactive intestinal peptide. |