Which of the following are characteristics of diarthrodial joints?
A. Articulating bone surfaces are covered with articular cartilage.
B. An articular capsule surrounds the joint.
C. They are lubricated by synovial fluid.
D. both A and B
E. all of the above
E. all of the above
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Which is caused by increased levels of the hormone cholecystokinin?
A. Secretion of HCO3- from the pancreatic duct cells B. Contraction of the gallbladder C. Contraction of the sphincter of Oddi D. Inhibition of pancreatic enzyme secretion E. Secretion of gastric H+
Which of the following types of neurons is the most common type of neuron found in the brain and spinal cord?
a) bipolar neuron b) multipolar neuron c) unipolar neuron d) nonpolar neuron e) pseudounipolar
The knee-jerk (patellar) reflex is classified as which of the following?
A. Flexor reflex B. Intersegmental reflex C. Monosynaptic reflex D. Crossed extension reflex E. Golgi tension reflex
Which of the following are found in lymph nodes?
A. T lymphocytes B. B lymphocytes C. Macrophages D. All apply.