Which blood vessel supplies blood to the pericardium, mediastinum, and the diaphragm?
A) ventral thoracic artery
B) vertebral artery
C) internal mammary artery
D) internal maxillary artery
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Question 2) The human aortic arch has three major branches: the brachiocephalic, the left common carotid, and the left subclavian artery. Which of these three arteries does NOT branch off from the aortic arch in a pig?
A) left common carotid artery
B) brachiocephalic artery
C) left subclavian artery
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Question 3) A graph of the muscle's electrical activity is displayed as ________.
A) a spirometry
B) an electrocardiogram (ECG)
C) an electromyogram (EMG)
D) None of the listed responses is correct.
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Question 4) The fetal pulmonary trunk is attached to the fetal aorta via the ________.
A) ductus arteriosus
B) ligamentum arteriosum
C) brachiocephalic artery
D) left subclavian artery
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Question 5) What type of muscle contraction occurs while you are holding a book?
A) isotonic
B) isometric
C) treppe
D) myogram
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Question 6) ________ muscle contraction occurs when the muscle length is relatively constant but the muscle tension changes.
A) A wave summation
B) An isotonic
C) An isometric
D) A complete tetanus
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Question 7) Most muscle work is accomplished by ________.
A) treppe
B) complete tetanus
C) wave summation
D) incomplete tetanus
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Question 8) In humans, the large vessel that drains blood from the head, neck, and upper limbs is called the ________ vena cava; in pigs this vessel is called the ________ vena cava.
A) superior; anterior
B) superior; inferior
C) inferior; posterior
D) inferior; superior
E) inferior; anterior
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Question 9) If the rate of stimulation to a muscle is such that the relaxation phase is completely eliminated, the contraction type is ________.
A) complete tetanus
B) wave summation
C) incomplete tetanus
D) None of the listed responses is correct.
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Question 10) The process called ________ stimulates more motor units to be activated.
A) treppe
B) wave summation
C) recruitment
D) concentric contractions
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