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Ulises Baeza

SCI221-05 Human Physiology

QuestionAnswer
What is the difference between sodium and potassium in the generation of an action potential? Sodium causes depolarization, and potassium causes repolarization of the cell membrane.
What is the movement of the membrane potential away from zero (below the usual Resting Membrane Potential) called? Hyperpolarization
Dopamine, epinephrine, and norepinephrine are classified as what? Catecholamines
What effects do nerve impulses over the vagus nerve cause? Increased peristalsis and decreased heart rate
Which hormone is released by the pituitary to stimulate the thyroid gland? Thyrotropin (TSH)
Which receptors are responsible for sensing crude and persistent touch? Ruffini corpuscles
The olfactory tract carries impulses associated with what sense? Smell
What is the clear, potassium-rich fluid that fills the labyrinth? Endolymph
Erythrocytes begin their maturation in red bone marrow from nucleated cells known as what? Hematopoietic stem cells
What is a decrease in the amount of white blood cells called? Leukopenia
What type of membranous tissue lines the heart and blood vessels? Endothelium
Created by: ubaeza
 

 



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