The pulmonary trunk carries
A. oxygenated blood from the left ventricle toward the lungs.
B. oxygenated blood from the right ventricle toward the lungs.
C. oxygenated blood from the lungs toward the left atrium of the heart.
D. deoxygenated blood from the right ventricle toward the lungs.
E. deoxygenated blood from the lungs to the right atrium of the heart.
D
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In nervous system physiology, the definition of a reflex is a ________
A) rapid, predictable, involuntary motor response to a stimulus B) variable response to a startling stimulus C) well thought out, therefore slow, response to an emergency situation D) voluntary response, which can be withheld
The second heart sound is produced by the
a. opening of the AV valves. b. closing of the AV valves. c. opening of the semilunar valves. d. closing of the semilunar valves. e. blood rushing through the AV valves during diastole, creating a turbulent flow.
A landscaper accidentally had their leg crushed by a tree. Their femur was impacted with such force that a section of the bone completely shattered into fragments. What type of break is this?
A. A fissured fracture B. An oblique fracture C. A greenstick fracture D. A comminuted fracture
The pectinate line of the anal canal:
A) denotes the separation of the external and internal sphincter ani muscles. B) denotes the separation between the rectal and anal mucosa. C) separates the part of the anal canal that is sensitive to laceration from the part that is not. D) separates the part of the anal canal that is innervated by sympathetic fibers from that innervated by parasympathetic fibers. E) indicates the anorectal junction.