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Janelle Unger
Physiology Week 7-13
| Question | Answer |
|---|---|
| The first event to occur when an adequate stimulus is applied to a neuron is: | some of the sodium channels at the point of stimulation open. |
| If the dorsal root ganglia of the spinal nerve were destroyed, a person would lose _____ related to that pathway. | sensory perception |
| Which membrane receptor acts to directly change ion permeability when stimulated? | Gated-channel receptor |
| The groove between the frontal and parietal lobes of the cerebral cortex is the | central sulcus. |
| Another name for the parasympathetic nervous system is the nervous system. | craniosacral |
| A reflex consists of either a muscle contraction or a | glandular secretion. |
| Both sympathetic and parasympathetic divisions are tonically active, which means they | continually conduct impulses to autonomic effectors. |
| What functions as an emergency mechanism when hypoxia or hypercapnia endangers the stability of the internal environment? | chemoreceptor reflex |
| Fluid that is clear, watery and contains protein molecules, salts, and other substances is called | intercellular fluid |
| Pepsinogen is converted to pepsin by hydrochloric acid, which is produced by the _____ of the gastric glands. | parietal cells |
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