Which of the following types of muscle tissue contract when excited by their own autorhythmic muscle fibers?
a) cardiac muscle
b) slow twitch oxidative skeletal muscle
c) multi-unit smooth muscle
d) fast twitch glycolytic skeletal muscle
e) All of these choices are correct.
a
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This artery is sometimes referred to as the "widowmaker" because blockage of it often leads to fatal heart attack. It serves the front of the heart and is more formally called the (2 words) _________ __________ artery
Fill in the blank with correct word.
Hyperparathyroidism, which is usually caused by a hypersecreting tumor in one of the parathyroid glands, is characterized by hypocalcemia and hyperphosphatemia
a. True b. False Indicate whether the statement is true or false
The enzyme DNA polymerase is synthesized
A. at the rough endoplasmic reticulum, and it is secreted from the cell. B. at a ribosome, and it remains within the cell. C. in the nucleus, and it is converted to RNA for export outside the cell. D. at the Golgi apparatus, and it is embedded in the cell membrane.
Veins of the upper arm include all of the following veins except the
A) basilic vein. B) cephalic vein. C) brachial vein. D) axillary vein. E) median cubital vein.