Which of the following parts of a hair are usually seen because they are located outside of the body?
A) bulb, root, shaft
B) hard keratin, bulb, root
C) follicle, bulb, cuticle, cortex
D) cortex, medulla, shaft
E) shaft only
E) shaft only
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The pulmonary trunk divides into
a) brachiocephalic trunk and left subclavian artery b) right and left subclavain arteries. c) right and left pulmonary veins. d) right and left pulmonary arteries. e) right and left common carotid arteries.
Which of the following is NOT part of the brainstem?
A. Thalamus B. Pons C. Medulla oblongata D. Midbrain
Which cranial nerve transmits impulses for the senses of hearing and balance?
A) oculomotor B) vestibulocochlear C) hypoglossal D) accessory E) glossopharyngeal
Orange juice is acidic. When people drink orange juice and the acid enters their blood, the extra hydrogen ions combine with ________, providing a helpful buffer.
A. bicarbonate B. calcium C. hemoglobin D. hydrochloric acid