Fixed macrophages that are found in the central nervous system are called
A) astrocytes.
B) oligodendrocytes.
C) microglia.
D) Kupffer cells.
E) ventricular macrophages.
C
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What is the term used for the process of chewing?
A. Peristalsis B. Mastication C. Deglutition D. None of these are correct.
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.
Determine the type of tissue grafts that would be most unlikely to experience rejection and explain why
What will be an ideal response?
A researcher genetically modifies an organism so it is paralyzed because its motor neurons can send signals to muscles, but none of the motor neurons can receive signals sent from the brain through other neurons. What is wrong with these motor neurons?
A. The motor neurons cannot reach the muscles. B. The motor neurons lack dendrites. C. The motor neurons lack axons. D. The other neurons lack nuclei.