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week 6-12
anatomy wk 6-12
| Question | Answer |
|---|---|
| excitable cells that conduct the impulses are called | neurons |
| what structure of the schwann cell is essential to normal nerve growth and the regeneration of injured nerve fibers? | Neurilemma |
| The somatic nervous system carries information to the | skeletal muscles |
| The dorsal root of each spinal nerve is easily recognized as a swelling called the | dorsal root ganglion |
| Spinal cord tracts provide conduction paths to and from the brain. The tracts that conduct sensory impulses down the cord from the brain are called _______tracts. | descending |
| Gustatory cells are located in all of the following areas except: | On the apical surface of vallate papillae on the tongue |
| The hormone produced by the heart | Increases the excretion of sodium in the urine |
| Fluid filling the posterior segment of the eye. | Vitreous humor |
| Inhibition of sympathetic vasoconstrictor impulses is considered a major mechanism of | vasodilation |
| which two factors promote the return of venous blood to the heart? | skeletal muscle contractions and blood-pumping action of smooth muscle contractions |
| the vagus is said to act as a "brake" on the heart. This situation is called | Vagal inhinition |
| a common condition characterized by acute inflammation of the tracheobronchial tree is | acute bronchitis |
| the microscopic cilia function to | move mucus toward the pharynx |