Which laryngeal piece of cartilage is one of a pair?
A. Epiglottis
B. Thyroid
C. Cuneiform
D. Cricoid
Answer: C
Anatomy & Physiology
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What structure is known as the "pacemaker" of the heart because it starts the action potential that triggers each heartbeat?
A. atrioventricular (AV) node B. sinoatrial (SA) node C. Purkinje fibers D. Bundle of His (AV bundle)
Anatomy & Physiology
Structure H is the
A) nasal.
B) lacrimal.
C) maxilla.
D) ethmoid.
E) palatine.
Anatomy & Physiology
The most deadly kind of skin cancer is ________.
Fill in the blank(s) with the appropriate word(s).
Anatomy & Physiology
The ________ controls movement of chyme between the last segment of the small intestine and the beginning of the large intestine.
A) pyloric sphincter B) duodenal papilla C) internal anal sphincter D) ileocecal valve E) hepatopancreatic sphincter
Anatomy & Physiology