adductel b y thes extended, medially rotated, and dorsi b. Triceps brachii c. Bi
ID: 3481175 • Letter: A
Question
adductel b y thes extended, medially rotated, and dorsi b. Triceps brachii c. Biceps brachii d. Deltoid e. 19. The arm is abducted and rotated by the: aLatissimns dont b. Trieeps brachii o. Biceps brachii d. Deltoid e. Brachialis , t. 20. The forearn is flexed by the: a Latissiimus dorsi b hriceps brachii o Biceps brachii d. Deltoid e. Pectorallis major 21. The after-hyperpolarization that follows an action potential occurs due to a rapid: a. Outflow of sodium ions b. Outflow of potassium ions c. Influx of sodium ions d. Influx of potassium ions e. Release of neurotransmitter 22. Which of the following events ocurs first in an action potential? A. After-hyperpolarization b. c. Repolarization d. Saltatory conduction e. Refractory period 23·The term "saltatory conduction" refers to the: a·"Leaping" of an action potential across a synapse b. Movement of sodium ions into the cell during depolarization c. One-way conduction of a nerve impulse actoss a synapse d. Conduction of a nerve impulse along a myelinated axon e e. Action of the sodium-potassiium pumpExplanation / Answer
18 ) A Teres major is extended and Medially rotates and adducts the arm (The teres major muscle is positioned above the latissimus dorsi muscle and assists in the extension and medial rotation of the humerus)
19 ) D deltoid (medial and lateral rotation of the arm and abduction)
20) B Triceps brachii is going to Extends forearm
21 ) D influx of potassium ions
22 ) B depolarisation
23 ) D increasing conduction of a nerve impulse along with the myelinated axon
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