Parathyroid hormone (PTH) O allows the kidneys to retain calcium. O increases calcium excretion by the intestine. O tends to inhibit osteoclasts. O decreases blood calcium levels. The all-or-none law means that O the size of the action potential does NOT depend on the strength of the stimulus O the size of the stimulus is the same for all neurons O the threshold stimulus is the same for all neurons O the size of the action potential DOES depend on the strength of the stimulus
Parathyroid hormone (PTH) O allows the kidneys to retain calcium. O increases calcium excretion by the intestine. O tends to inhibit osteoclasts. O decreases blood calcium levels. The all-or-none law means that O the size of the action potential does NOT depend on the strength of the stimulus O the size of the stimulus is the same for all neurons O the threshold stimulus is the same for all neurons O the size of the action potential DOES depend on the strength of the stimulus
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Parathyroid hormone (PTH)
allows the kidneys to retain calcium.
increases calcium excretion by the intestine.
tends to inhibit osteoclasts.
decreases blood calcium levels.
The all-or-none law means that
the size of the action potential does NOT depend on the strength of the stimulus
the size of the stimulus is the same for all neurons
the threshold stimulus is the same for all neurons
the size of the action potential DOES depend on the strength of the stimulus
Which of the following scenarios does not contribute to the resting membrane
potential?
O O O
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