Consider a disease whereby cilia within the epithelial lining of the paranasal sinuses are destroyed. What would be some of the consequences?
The ciliated epithelium moves mucus back toward the throat, where it is eventually swallowed or expelled coughing. Mucus traps foreign particulates, such as dust or microorganisms, which in the absence of cilia would build up within the paranasal sinuses. Possible consequences may include congestion, pain, sinusitis, and spread of infections into the respiratory tract.
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The point where the right and left common iliac veins form the inferior vena cava (IVC) is at
A. the sacrum. B. L5. C. L4. D. L3.
The only amine hormone to act like a steroid is ________.
A) TH B) ACTH C) GH D) ADH
________ does not occur upon exposure to cold
a. Skin vasoconstriction b. Decreased muscle tone c. Nonshivering thermogenesis d. Behavioral adaptations e. Stimulation of thermoreceptors
Nonfluent aphasia, due to a lesion in the ________, results in slow speech, difficulty in choosing words, or use of words that only approximate the correct word.
A. primary auditory area B. cerebral lateralization C. Broca area D. primary motor area E. Wernicke area