Which statement is not true?

a. Vitamin D deficiency is the cause of rickets.
b. PTH is the most important hormone in the control of calcium metabolism.
c. Both calcitonin and PTH are produced in the follicle cells of the thyroid gland.
d. Vitamin D is actually a hormone that increases calcium absorption in the intestine.
e. Parathyroid hormone is essential for life.


C

Anatomy & Physiology

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Multiple sclerosis (MS) is one of the better known diseases resulting from demyelination of axons (in MS, only CNS axons are affected). Some of the earliest symptoms of the disease are difficulty in focusing the eyes, such as in reading, and difficulty in maintaining balance, and frequently not being able to make adjustments in posture to avoid falling. How do these symptoms "fit" with what you

know about nerve impulses, myelin sheaths, and the location of gated ion channels in the membranes of axons? What will be an ideal response?

Anatomy & Physiology

"The infectious agent should be detectable in sick animals, but not healthy animals" is one of the ________________________________________ postulates

Fill in the blank(s) with correct word

Anatomy & Physiology

How do parasympathetic neurons in the medulla respond to increased blood pressure?

A) Heart rate is increased. B) Vasoconstriction is promoted. C) Sympathetic activity is inhibited. D) Cardiac output is increased.

Anatomy & Physiology

Platelets are roughly the same size as erythrocytes, and like erythrocytes, they eject their nucleus just before entering circulation.

Answer the following statement true (T) or false (F)

Anatomy & Physiology