The larynx lining transitions at the vocal cords from stratified squamous nonkeratinized epithelium to:
A) pseudostratified ciliated columnar epithelium. B) transitional epithelium.
C) simple squamous epithelium. D) simple columnar epithelium.
Answer: D
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An increase in the osmolarity of the blood supplying the hypothalamus is a powerful stimulus for thirst.
Answer the following statement true (T) or false (F)
Why is it sometimes advantageous to inject drugs intramuscularly rather than subcutaneously or intravenously?
A. Drugs injected into muscles are absorbed very rapidly into the bloodstream. B. Drugs may be injected more superficially if they are injected into muscle bellies. C. Skeletal muscle tissue contains more mitochondria so drugs are metabolized more quickly in muscles. D. Drugs injected into muscles are absorbed gradually into the bloodstream. E. Smaller quantities of drugs are more effective when injected into muscle bellies.
A tennis player complains of severe pain in the shoulder when serving or returning an overhead volley. Which of the rotator cuff muscles is probably damaged?
A. Infraspinatus B. Deltoid C. Teres major D. Supraspinatus E. Subscapularis
Receptors contain modality-gated channels within their plasma membranes.
Answer the following statement true (T) or false (F)