Which of the following is most distal in location on the humerus?
A. Trochlea
B. Medial epicondyle
C. Anatomical neck
D. Deltoid tuberosity
E. Greater tubercle
Answer: A
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Of the coronary vessels listed, which one receives blood first?
A) Right coronary artery B) Marginal artery C) Circumflex artery D) Anterior interventricular artery
What type of membrane proteins form a passageway through the plasma membrane?
A. carrier proteins B. receptor proteins C. enzymes D. channel protein E. marker molecules
Answer the following statements true (T) or false (F)
1. The force of muscle contraction is controlled by multiple motor unit summation or recruitment. 2. Eccentric contractions are more forceful than concentric contractions. 3. A motor neuron and all the muscle cells that it stimulates are referred to as a motor end plate. 4. Peristalsis is characteristic of smooth muscle. 5. A contraction in which the muscle does not shorten but its tension increases is called isometric.
A branch of the inferior alveolar nerve supplies somatic motor innervation to the _________ muscle.
A. geniohyoid B. stylohyoid C. anterior belly of digastric D. posterior belly of digastric E. platysma