A muscle that contracts to assist the main muscle in performing a particular action is called a(n)
A. synergist.
B. antagonist.
C. prime mover.
D. agonist.
E. fixator.
Answer: A
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In intervertebral joints, which ligament connects the laminae of adjacent vertebrae?
A. Ligamentum nuchae B. Interspinous ligament C. Posterior longitudinal ligament D. Ligamentum flavum E. Anterior longitudinal ligament
Pelvic lymph drainage:
A) is associated with six primary groups of well-defined lymph nodes. B) is defined by well-developed flow patterns that permit prediction of the spread of metastatic cancer from one organ to another. C) includes vessels that drain the testis. D) is characterized by terminal efferent vessels that pass the lymph to lumbar (caval/aortic) nodes. E) rigidly follows venous drainage patterns.
Where are the giant multipolar neurons called Purkinje fibers found?
A. The dorsal horn of the spinal cord B. The ventral horn of the spinal cord C. The cerebral cortex D. The cerebellum E. The reticular formation
Compare bradycardia with tachycardia
A) Bradycardia is an abnormally weak ventricular contraction and tachycardia is an abnormally strong ventricular contraction. B) Bradycardia is an abnormally strong ventricular contraction and tachycardia is an abnormally weak ventricular contraction. C) Bradycardia is a heart rate above 100 beats per minute and tachycardia is a heart rate below 60 beats per minute. D) Bradycardia is a heart rate below 80 beats per minute and tachycardia is a heart rate above 120 beats per minute. E) Bradycardia is a heart rate below 60 beats per minute and tachycardia is a heart rate above 100 beats per minute.