What transport process uses the energy stored in a Na+ or H+ concentration gradient to drive other substances across the membrane against their own concentration gradients?
a) primary active transport
b) secondary active transport
c) facilitated diffusion
d) passive diffusion
e) osmosis
Answer: b
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The major extensor of the elbow that also extends and adducts the shoulder and originates on the scapula is the long head of the ________ muscle.
Fill in the blank(s) with the appropriate word(s).
The connection between a tooth and jaw bone is an example of a joint.
Answer the following statement true (T) or false (F)
The region between the lungs is known as the ___________.
Fill in the blank(s) with the appropriate word(s).
Which is TRUE about gastric motility?
A. The basic electrical rhythm of the gastric smooth muscle (three depolarizations per minute) is the same regardless of whether or not food is present. B. Gastric contractions are strongest in the fundus of the stomach. C. The force of contraction is decreased by gastrin and increased by enterogastrones. D. When a wave of excitation reaches the pyloric sphincter, action potentials become inhibitory and the sphincter opens wide to allow chyme to exit. E. The term "slow waves" refer to gastric contractions, while "pacemaker" refers to gastric action potentials.