Where in the body does the production of precursors for the synthesis of calcitriol occur?
A) bone
B) kidneys
C) small intestine
D) liver
E) skin
E
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The blood is injected with a special dye that stains the areas where it passes through. Where in the brain and spinal cord would you expect to see the stain?
A. No stain would be found inside the cranium or vertebral column. B. The space outside of the dura mater (between dura mater and bone) would be stained. C. Any space occupied by the CSF would be stained. D. The brain and spinal cord would be stained.
Answer the following statements true (T) or false (F)
1. The protein found in large amounts in the outermost layer of epidermal cells is collagen. 2. Joe just burned himself on a hot pot. A blister forms and the burn is best be described as a third-degree burn 3. Destruction of the matrix of the hair bulb would result in its inability to produce oil. 4. The hyponychium is commonly called the cuticle. 5. The reason that the nail bed appears pink is the presence of a large number of melanocytes in the underlying dermis.
Fetal hemoglobin becomes largely replaced with adult hemoglobin
A) after the first trimester. B) from 4 months after birth. C) at birth. D) when a child starts school.
All of the following are typical characteristics of neurotransmitters exceptÂ
A. they alter the physiology of the postsynaptic cell. B. they bind to specific receptors on the postsynaptic cell. C. they are synthesized by a presynaptic neuron. D. they are released in response to stimulation. E. they are released into the bloodstream before reaching the postsynaptic cell.