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BAO
Physiology Week 1-13
| Question | Answer |
|---|---|
| Which of the following epithelial functions is a primary activity of glandular epithelium? | Secretion |
| What structure is formed by the union of the basal and reticular lamina? | Basement membrane |
| In intramembranous ossification, the process of appositional growth refers to the: | addition of an outside layer of osseous tissue on flat bones. |
| Bones act as a reservoir for which of the following minerals? | Calcium, Phosphorus |
| The papillary layer of the dermis: | produces the ridges that make fingerprints. |
| Which type of tissue has the greatest capacity to regenerate? | Epithelial |
| The chief function of the T-tubules is to: | allow for electrical signals to move deeper into the cell. |
| The purpose of creatine phosphate in muscle contraction is to: | replenish energy supply. |
| After it is released from the sarcoplasmic reticulum, the calcium combines with which protein? | Troponin |
| Stimulus-gated channels open in response to: | sensory stimuli. |
| The fastest nerve fibers in the body can conduct an impulse that is how much faster than the slowest fibers in the body? | Almost 300 times faster |
| When current leaps across an insulating myelin sheath from node to node, the type of impulse conduction is called: | saltatory conduction. |
| Which of the following antidepressants acts by blocking the action of monoamine oxidase (MAO)? | Phenelzine |
| When an impulse reaches a synapse: | chemical transmitters are released. |
| In comparison with the nervous system, the regulatory effects of the endocrine system are: | slow to appear but long-lasting. |
| Dynamic equilibrium depends on the functioning of the | crista ampullaris. |
| Which of the following is not true of a receptor potential? | It follows the all-or-none law. |
| Sensory impulses ending in what part of the CNS trigger imprecise or “crude” sensation awareness? | Thalamus |
| What is the difference between a somatic reflex and an autonomic reflex? | A somatic reflex is caused by contraction of skeletal muscles, whereas an autonomic reflex consists of contraction of smooth or cardiac muscle or secretions of glands. |
| Acetylcholine can stimulate _____ receptors. | nicotinic |
| The vomiting reflex is mediated by the: | medulla |
| When current leaps across an insulating myelin sheath from node to node, the type of impulse conduction is called: | saltatory conduction. |
| Excitatory neurotransmitters are most likely to: | initiate an action potential. |
| Serotonin is an example of a(n): | amine neurotransmitter. |
| The fastest nerve fibers in the body can conduct impulses up to approximately _____ meters per second. | 130 |
| During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? | It flows into the inferior vena cava. |
| Inhibition of sympathetic vasoconstrictor impulses is considered a major mechanism of | vasodilation. |
| 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 ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is called: | self-tolerance. |
| The function of the vibrissae in the vestibule is to: | provide an initial “filter” to screen particulate matter from air that is entering the system. |
| The function of surfactant is to: | prevent each alveolus from collapsing as air moves in and out during respiration. |
Created by:
b.trinh
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