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Jazmen Mckay
Stack 2
| Question | Answer |
|---|---|
| Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate. olfactory trigeminal vagus hypoglossal | C |
| Impulses from the _____ play a part in arousing or alerting the cerebrum. pons thalamus cerebellum hypothalamus | B |
| Damage to the _____ nerve could make the diaphragm unable to function. phrenic axillary radial medial cutaneous | A |
| How does a dually innervated autonomic effector differ from a singly innervated autonomic effector? | A dually innervated effector receives input from both sympathetic and parasympathetic pathways. A singly innervated autonomic effector receives input from only the sympathetic division. |
| What would the result be if the phrenic nerve received an impulse from the cervical plexus? | The diaphragm would stop contracting. |
| Cerebrospinal fluid is formed by filtration of blood in the: central canal. choroid plexuses. subarachnoid space. arachnoid villi. | B |
| The knee jerk can be classified as a segmental reflex because: | impulses that mediate it enter and leave the same segment of the cord. |
| Somatic motor and autonomic pathways share all of the following characteristics except: direction of information flow. location of peripheral fibers. number of neurons between central nervous system (CNS) and effector. acetylcholine. | C |
| Where do frequencies—from high to low pitches—cause activity in the hair cells within the cochlear duct? | the apex of the cochlea between the base and the apex of the cochlea |
| During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? flows into the inferior vena cava. flows into the superior vena cava. flows into the ductus venosus. flows into the ductus arteriosus. | A |
| The ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is called: innate immunity. nonspecific immunity. self-tolerance. adaptive immunity. | C |