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Fatima Celso

Human Physiology Week 7 to 13

QuestionAnswer
When current leaps across an insulating myelin sheath from node to node, the type of impulse conduction is called: saltatory conduction.
When neurotransmitters from synaptic knobs stimulate a postsynaptic neuron in rapid succession, their effect can add up over a brief period to produce an action potential. This is called temporal summation.
Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate. vagus
If the ventral nerve root of a spinal nerve were destroyed, a person would lose _____ related to that pathway. willed movement
When a small amount of one hormone allows a second hormone to have its full effect, the phenomenon is called: permissiveness.
When the right cornea senses a tactile stimulus, what happens to the left eye? blinks
During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? It flows into the inferior vena cava.
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.
Chemotaxis is the process by which a cell navigates toward the source of the chemotactic factor by way of detecting and then moving toward higher concentrations of the factor.
Fluid that is clear, watery and contains protein molecules, salts, and other substances is called intercellular fluid
External respiration can be defined as: the exchange of gases between the lung and the blood capillaries in the lung. pulmonary ventilation.
The sodium cotransport or coupled transport acts to transport sodium ions and glucose molecules _____ the GI lumen. passively out of
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