Dietary glucose is transported into a cell down its concentration gradient with the aid of membrane proteins called Na+/glucose _____.
A. aquaporins
B. channel proteins
C. receptor proteins
D. symporters
E. antiporters
Answer: D. symporters
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Second-order neurons from the medial lemniscus and spinothalamic tracts synapse with third-order neurons in the thalamus.
Answer the following statement true (T) or false (F)
Prehospital treatment of the patient with a traumatic brain injury must focus primarily on:
A) maintaining cerebral perfusion pressure. B) hyperventilating the patient at 20 breaths/min. C) maintaining a systolic blood pressure of at least 120 mm Hg. D) taking measures to decrease intracranial pressure.
When normal buffer mechanisms are overwhelmed by excessive numbers of hydrogen ions, which of the following will result?
A. acidosis B. alkalosis C. neither of these
Which of the following is NOT true of the biceps brachii muscle?
A. It inserts on the olecranon process of the ulna. B. It flexes the elbow, and also supinates the forearm and hand C. It is innervated by the musculocutaneous nerve. D. The name of the muscle implies that it has 2 origins. E. All of these are true of the biceps brachii muscle.