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Simegn Tessema

Physiology Week 7-13

QuestionAnswer
The membrane potential maintained by a non-conducting neuron's plasma membrane is called A. Membrane potential B. Local potential C. Resting membrane potential (RMP) D. none of the above C. Resting Membrane Potential
A synapse is the place where signals are transmitted from one neuron called the presynaptic neuron, to another neuron called the postsynaptic neuron A. True B. False A. True
If the sum of the local potentials reaches the threshold potential, voltage gated channels in the axon membrane open, producing an action potential. This phenomenon called A. temporal summation B. spatial summation C. Summation D. A & B B. Spatial summation
Spinal cord tracts provide conduction paths to and from the brain. Ascending tracts conduct sensory impulses up the cord to the brain, Descending tracts conducts motor impulses down the cord from the brain. A. False B. True B. True
The Spinal cord performs two general functions A. It provides conduction routes to and from the brain and serve as the integrator B. reflex center, for spinal reflexes C. A & B D. none of the above C. A & B
which of the following is the function of the cerebellum A. Acts with the cerebral cortex to produce skilled movement by planning and conducting the activities of group of muscle B. Helps control posture C.Control skeletal muscles to maintain balance E. All of the above
Under ordinary resting condition, the sympathetic division act to maintain the normal functioning of dually innervated autonomic effectors. It does this A. By opposing the effect of parasympathetic impulses to these structure B. By contracting parasymp C. A & B
Tropic hormones are hormones that target other endocrine glands and stimulate their growth and secretion A True B. False A True
One of the function of RBCs is critical role in the transport of oxygen and carbon dioxide depends on Hemoglobin A. False B. True B True
Lymph nodes perform two distinct functions: defense and hematopoiesis A true B False A True
Created by: Simegn Tessema
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