Inhaled air is humidified and warmed by the
A. pharynx and the paranasal sinuses.
B. tonsils and the paranasal sinuses.
C. nasal cavity and the paranasal sinuses.
D. nasal cavity and the pharynx.
E. nasal cavity and the larynx.
Answer: C
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The heart is lined by epithelium, called the myocardium.
Answer the following statement true (T) or false (F)
Acetylcholinesterase removes ACh from receptors
Indicate whether the statement is true or false
Portion of the nephrons attached to the collecting duct
A) proximal convoluted tubule
B) medullary portion of the collecting duct
C) distal convoluted tubule
D) descending limb of the nephron loop
E) glomerulus
Serum is essentially identical to plasma except for the absence of ________
A) nitrogenous wastes B) fibrinogen C) albumin D) glucose E) platelets