Which back muscle extends and rotates the vertebral column?
A. erector spinae
B. longissimus capitis
C. interspinales
D. multifidus
E. psoas minor
D
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The classes of muscles based upon the arrangement of the fasciculi include fusiform, _____.
A. parallel, round, square, and rectangular B. circular, parallel, pennate and convergent C. single, double, and triple
Except for potassium ions, tubular secretion of most unwanted substances occurs in the ________.
A. collecting duct B. proximal convoluted tubule C. distal convoluted tubule D. nephron loop
Which function(s) is/are NOT continuously regulated by the GI tract?
A) motility only B) absorption only C) secretion only D) All 3 functions are regulated. E) None of the 3 functions are regulated.
Though the autonomic innervation by autonomic centers in the brainstem cannot initiate a heartbeat, it can increase or decrease the heart rate.
Answer the following statement true (T) or false (F)