Glial cells outnumber neurons in the nervous system by a ratio of approximately ________ to one. (Note: Be sure to spell out your answer).
Fill in the blank(s) with the appropriate word(s).
five
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Osteogenic cells are bone stem cells that differentiate into osteoblasts and osteoclasts.
Answer the following statement true (T) or false (F)
The stratified squamous epithelium is located within which of the following layers of the alimentary canal?
A) serosa B) submucosa C) mucosa D) muscularis externa
The main disadvantage of using a scoop stretcher to transfer a patient to a long backboard is:
A) inability to conduct a visual exam of the back for injuries. B) patient discomfort due the cold metal frame of the scoop. C) unnecessary patient movement and the risk for further harm. D) inability to palpate the spinal vertebrae for gross deformities.
The pigmented skin that surrounds the nipple is the
A) zona reticularis. B) fornix. C) zona pellucida. D) peripapilla. E) areola.