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billyhilly billyhilly
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Posts: 479
5 years ago

Question 1.

In circumstances where the body requires prolonged or increased levels of a hormone, the DNA of target cells will specify the synthesis of more receptors on the surface of the cells of the target organ. This is known as ________.

• cellular affinity

• sensitivity increase

• a stressor reaction

• up-regulation

Question 2.

A release of parathyroid hormone (PTH) will trigger ________.

• increased activation of vitamin D by the kidney

• increased osteoblast activity

• a drop in blood calcium levels

• a reduction of calcium reabsorption in the kidney tubules
Textbook 
Human Anatomy and Physiology

Human Anatomy and Physiology


Edition: 11th
Authors:
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bli14bli14
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Posts: 390
5 years ago
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billyhilly Author
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5 years ago
Thanks
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