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Physio stack 2
weeks 7-13
Question | Answer |
---|---|
Neurotransmitters are released in a synapse and bind to: | receptors on the postsynaptic neuron. |
No impulse can be sent through a neuron: | during the absolute refractory period. |
When current leaps across an insulating myelin sheath from node to node, the type of impulse conduction is called: | saltatory conduction |
“Fight or flight” physiological changes include all of the following EXCEPT | constriction of respiratory airways. |
Another name for the parasympathetic nervous system is the nervous system. | craniosacral |
The effect of sympathetic stimulation on the urinary bladder is | relaxation. |
The set of coordinated commands that control the programmed muscle activity mediated by extrapyramidal pathways is called the | motor program |
Tongue movement is controlled by which cranial nerve? | hypoglossal |
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 |
Conduction by the sixth cranial nerve results in sensations of hearing. | false |
Impulses from the _____ play a part in arousing or alerting the cerebrum. | Thalamus |
The knee jerk can be classified as a segmental reflex because: | impulses that mediate it enter and leave the same segment of the cord |
Somatic motor and autonomic pathways share all of the following characteristics except: | number of neurons between central nervous system (CNS) and effector. |
Which of the following statements is not true of the pineal gland? | Melatonin is stimulated by the presence of sunlight |
When a small amount of one hormone allows a second hormone to have its full effect, the phenomenon is called: | permissiveness. |
The major hormone produced by the corpus luteum is: | progesterone. |
Clearness or sharpness of visual perception is known as: | visual acuity |