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Phy. 12/2/2020
Question | Answer |
---|---|
Which neuron could transmit a nerve impulse the fastest? | A large-diameter neuron with myelin |
The parasympathetic and sympathetic divisions always act with a cooperative influence, and through summation of the impulses, the effect can be increased | False |
Which is the only plexus that contains fibers from the thoracic region of the spinal cord? | Brachial |
Nerves that innervate the floor of the pelvic cavity and some of the surrounding areas are found in the _____ plexus. | coccygeal |
The immediate effect of a steroid hormone on a cell is the: | transcription of RNA. |
The receptors responsible for sensing crude and persistent touch are the: | Ruffini corpuscles. |
The clear and potassium-rich fluid that fills the labyrinth is | endolymph. |
Blood volume per kilogram of body weight varies inversely with: | body fat. |
In the extrinsic pathway of stage 1 of the clotting mechanism, chemicals released from damaged tissues trigger the cascade of events that ultimately result in the formation of | prothrombin activator. |
The vagus is said to act as a “brake” on the heart. This situation is called | vagal inhibition. |