An action potential is ________
A) a depolarization of the cell membrane
B) a rapid depolarization and repolarization of the cell membrane that is propagated
C) a refractory period of the cell membrane
D) a repolarization of the cell membrane
Answer: B
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Besides the supinator, which other muscle is a powerful supinator of the forearm?
A. Brachialis B. Triceps brachii C. Pronator quadratus D. Biceps brachii E. Pronator teres
Which supply the pancreas? a: Inferior mesenteric arteryb: Gastroduodenal arteryc: Gastroepiploic arteryd: Splenic arterye: Superior mesenteric artery
A. b, e B. a, d, e C. a, c, e D. b, c, e E. b, d, e
Where are synaptic vesicles found?
A. In the synaptic cleft B. In the synaptic knob C. In the motor end plate D. In the junctional folds E. In the terminal cisternae
Answer the following statements true (T) or false (F)
1. Sweat glands are apocrine glands. 2. Endocrine glands are often called ducted glands. 3. Blood is considered a type of connective tissue. 4. Nervous tissue consists mainly of neurons and collagen fibers. 5. The atomic weight is only an average of relative weights of an atom and its isotopes, and it may vary from the weight of a specific isotope.