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Physiology
Weeks 7-13
| Question | Answer |
|---|---|
| Which membrane receptor acts to directly change ion permeability when stimulated? | gated-channel receptor |
| A term commonly used as a synonym for action potential is | depolarization |
| Acetylcholine is in the same class of neurotransmitters as | histamine |
| The somatic motor system includes all the ____ motor pathways ____ the CNS. | voluntary; within |
| Danielle has sustained an injury that has reduced her ability to complete simple tasks such as lifting a pencil, manipulating eating utensils, and brushing her hair. The injury has affected the _____ motor pathways ____ the CNS. | voluntary; outside |
| Nerves that innervate the floor of the pelvic cavity and some of the surrounding areas are found in the ______ plexus | coccygeal |
| Parasympathetic stimulation has no effect on any of the following areas except: | sweat glands |
| The sequence of auditory ossciles in the middle ear starting at the tympanic membrane and ending at the oval window is: | malleus, stapes, and incus |
| Accommodation for near vision necessitates | an increase in the curvature of the lens, constriction of the pupils, and convergence of the two eyes. |
| Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: | hematopoietic stem cells |
| During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? | It flow into the inferior vena cava |
| The vagus is said to act as a "brake" on the heart. This situation is called | vagal inhibition |
| The chemoreceptors in the carotid bodies are particularly sensitive to: | hypercapnia |
| Fluids that is clear, watery and contains protein molecules, salts, and other substances is called | intercellular fluid |
| The T cells is considered | the communicator |
| Which of the following is a powerful poison that acts directly on any cell and quickly kills it? | lymphotoxin |
| The sensors that provide feedback information to the medullary rhythmicity area are the | central chemoreceptors and peripheral chemoreceptors |
| What variations exist in the body to temporarily store or carry oxygen? | neuroglobin, myoglobin, and fetal hemoglobin |
| External respiration can be defined as: | the exchange of gases between the lung and the blood capillaries in the lung and pulmonary ventilation |
| Chemical digestion requires the secretion of | digestive enzymes and bile |
Created by:
anjelicar0176