________, released by damaged tissue and mast cells, causes capillaries to dilate and become more permeable.
A. Lysozyme
B. Complement
C. Serotonin
D. Histamine
Answer: D
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Mammography and bone densitometry are good examples of which of the following types of medical imaging?
a) computed tomography b) magnetic resonance imaging c) ultrasound scanning d) radionuclide scanning e) low-dose radiography
How many lobes does the thyroid gland have?
a. 1 b. 2 c. 3 d. 4 e. 5
What structure contains the receptor cells for hearing?
What will be an ideal response?
Explain how the heart can be in the thoracic cavity but not the pleural cavity
A) The pleural cavity is only associated with the lungs. B) The thoracic cavity contains all organs protected by the ribs, sternum, and thoracic vertebrae. C) The mediastinum is a double-walled membrane surrounding the heart but not the lungs. D) The pericardial cavity encloses the heart as well as the lungs.