A motor neuron and the muscle fibers that it controls constitute a motor unit.
Answer the following statement true (T) or false (F)
True
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The actual mass of an atom is known as its
A) chemical weight. B) atomic weight. C) atomic mass. D) chemical mass. E) chemical force.
When there is more blood in the ventricle of the heart, the heart will contract more forcefully and increase stroke volume. This phenomenon is known as the __________
Fill in the blank with correct words.
People with REM sleep disorder most likely have:
a. damage in the pons and midbrain. b. damage to areas of the brain that normally produce movements during REM. c. restricted oxygen intake during sleep due to factors associated with obesity. d. abnormally high levels of serotonin in the brain.
Which structure is the adult remnant of the umbilical vein?
A) Fossa ovalis B) Ligamentum venosum C) Ligamentum arteriosum D) Ligamentum teres