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Isabel Medina #2
SCI 221 week 7-13
| Question | Answer |
|---|---|
| Stimulus-gated channels open in response to: | sensory stimuli |
| Compared with the outside of the neuron, the inside has a(n) ____ charge. | negative |
| Dopamine, epinephrine, and norepinephrine are classified as: | catecholamines |
| Which of the following is not one of the main chemical classes of neurotransmitters? A. Triglycerides B. Amines C. Amino acids D. Neuropeptides | A |
| True or False? The preganglionic neurons of both the sympathetic and the parasympathetic divisions are cholinergic. | True |
| Somatic motor and autonomic pathways share all of the following characteristics except: A. direction of information flow. B. location of peripheral fibers. C. number of neurons between central nervous system (CNS) and effector. D. acetylcholine. | C. |
| Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate. | vagus |
| If you slammed your finger in a car door, it would stimulate _____ pain fibers. | acute |
| The receptors responsible for sensing crude and persistent touch are the: | Ruffini corpuscles |
| The last step in the nonsteroid hormone mechanism of action is: | protein kinases activate other enzymes |
| The body’s defense mechanisms can be organized into one of two major categories of immune mechanisms; these are: | innate and adaptive immunity |
| Molecules formed by the reactions of the complement cascade assemble themselves on the enemy cell’s surface, which results in: | cytolysis |
| Which organ has several functions, including defense, hematopoiesis, red blood cell and platelet destruction, and blood reservoir? | spleen |
| Which protein interferes with the ability of viruses to cause disease? | interferon |
| Standard atmospheric pressure is _____ mm Hg. | 760 |
| Which gas law deals with the solubility of gases in solution? | Henry |
| The tendency of the thorax and lungs to return to the preinspiration volume is called: | elastic recoil |
| Polysaccharides are hydrolyzed into disaccharides by enzymes known as: | amylase |
| The final product of carbohydrate digestion is a: | monosaccharide. |
| Which of these is not an example of mechanical digestion? A. Moistening the food B. Changing food from large to small particles C. Propelling food through the digestive tract D. All of the above are examples of mechanical digestion | A. |
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issyp