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Yolitza Ortega
Physiology - Week 14 StudyStack Set 2
| Question | Answer |
|---|---|
| No impulse can be sent through a neuron: | during the absolute refractory period. |
| Which of the following is a description of the principle of autonomic antagonism as it relates to the autonomic nervous system? | If sympathetic impulses tend to stimulate an effector, parasympathetic impulses tend to inhibit it. |
| 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. |
| 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 central nervous system (CNS). | voluntary; outside |
| Nerves that innervate the floor of the pelvic cavity and some of the surrounding areas are found in the _____ plexus. | coccygeal |
| Which is not true of the hormone somatostatin? | It stimulates the secretion of insulin. |
| Which of the following is not a characteristic of the endocrine system? | Chemical messenger travels a short distance. |
| When you are looking at a large green field, which cones would be sending the green wavelength to the brain? | M |
| Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: | hematopoietic stem cells. |
| Inhibition of sympathetic vasoconstrictor impulses is considered a major mechanism of | vasodilation |
| Activities that result in central movement or flow of lymph are called | lymphokinetic activities. |
| The _____ postulates that when an antigen enters the body, it selects the clone whose cells are committed to synthesizing its specific antibody and stimulates these cells to proliferate and to thereby produce more antibodies. | clonal selection theory |
| The PCO2 in alveolar air is _____ blood. | less than in the systemic venous equal to the systemic arterial Both A and C are correct. |
| Standard atmospheric pressure is _____ mm Hg. | 760 |
| The PCO2 in the atmosphere is: | less than in the alveolar air. |
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