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Human Physiology
Chapters 7-13
| Question | Answer |
|---|---|
| Serotonin is an example of a | amine neurotransmitter |
| If the magnitude of the local depolarization surpasses a limit called the ______, voltage gated Na+ channels are stimulated to open | threshold potential |
| "Fight of flight" physiological changes include all of the following EXCEPT | constriction of respiratory airways |
| Which of the following statements is not true? | The major function of the parasympathetic division is to serve as an "emergency" system |
| If the dorsal root ganglia of the spinal nerve were destroyed, a person would lose ____ related to that pathway. | sensory perception |
| What goes wrong in the function of insulin in type 2 diabetes? | the cells don't respond to insulin like they should |
| Which hormone is released by the pituitary to stimulate the thyroid gland? | thyrotropin |
| The sequence of auditory ossicles in the middle ear starting at the tympanic membrane and ending at the oval window is: | malleus, incus, and stapes |
| Which sphincters function as regulatory valves that reduce the flow of blood through a network of capillaries when they contract and constrict the arterioles? | precapillary sphincters |
| The term used to describe the collection of mechanisms that influence the circulation of blood is: | hemodynamics |
| The lymphatic organs proudce | lymphocytes |
| Molecules formed by the reactions of the complement cascade assemble themselves on the enemy cell's surface, which result in | cytolysis |
| Which of the following is a powerful poison that acts directly on any cell and quickly kills it? | lymphotoxin |
| The lymphatic system serves various functions in the body. The two most important functions of this system are | fluid balance and immunity |
| Which antibody is synthesized by immature B cells and then inserted into their plasma membranes? | immunoglobulin M |
| Hyperpnea means a(n) | increase in breathing |
| Which oxygen-binding protein helps move oxygen out of the blood and into muscle cells? | myoglobin |
| The compound formed when carbon dioxide combines with hemoglobin is | carbaminohemoglobin |
| Which type of breathing is characterized by repeated sequences of deep gasps and apnea, and is usually seen in people with increased intracranial pressure? | Biot's breathing |
| Which of the following constitutes total lung volume? | Residual volume and vital capacity |
| The ejection of bile from the gallbladder is controlled by which hormones? | CCK and secretin |
| During which stage of swallowing is there a risk of food entering respiratory pathways? | Oropharyngeal |
| An end product of fat digestion is | glycerol |
| The final product of carbohydrate digestion is a | monosaccharide |
| The process of swallowing is known as | deglutition |
| Which blood vessel carries absorbed food from the GI tract to the liver? | Portal vein |
| Peristalsis is regulated in part by the intrinsic stretch reflexes. It is also thought to be stimulated by the hormone | cholecystokinin (CCK) |
| Standard atmospheric pressure is ___mm Hg | 760 |
| The vital capacity is equal to the sum of the: | inspiratory reserve volume, tidal volume, and expiratory reserve volume |
| During the respiratory cycle, intrapleural pressure is always less than alveolar pressure. The difference is called | transpulmonary pressure |
Created by:
elaine.mancilla
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