The nasal cavity:
A) contains two bony shelves known as turbinates.
B) is extremely delicate and has a rich blood supply.
C) requires significant trauma to result in hemorrhage.
D) is separated by a septum that is midline in all people.
Answer: B) is extremely delicate and has a rich blood supply.
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Which structure allows upper respiratory infections to spread from the throat to the tympanic cavity?
A. Oval window B. Cochlear duct C. Auditory canal D. Auditory (Eustachian) tube E. Tympanic cavity
In order to be able to respond to the vast number of antigens present in the environment, which the body might encounter, the lymphoid system has populations of cells with ________.
Fill in the blank(s) with the appropriate word(s).
List the factors that could cause abnormal levels of secretion from endocrine glands, and explain why target cells may display abnormal responsiveness to a hormone
What will be an ideal response?
Which of the following is not found in the epidermis?
A. Stem cells B. Keratinocytes C. Tactile cells D. Melanocytes E. Fibroblasts