What is the function of the heart valves?
A. To give support to the heart
B. To prevent the backflow of blood
C. To push blood
D. To stimulate the heart
Answer: B
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Which statement is true regarding the location of the trachea?
A. It lies anterior to the esophagus, inferior to the larynx, and inferior to the primary bronchi of the lungs. B. It lies posterior to the esophagus, inferior to the larynx, and superior to the primary bronchi of the lungs. C. It lies superior to the esophagus, inferior to the larynx, and superior to the primary bronchi of the lungs. D. It lies superior to the esophagus, superior to the larynx, and superior to the primary bronchi of the lungs. E. It lies anterior to the esophagus, inferior to the larynx, and superior to the primary bronchi of the lungs.
The thyroid cartilage is part of the __________
Fill in the blank(s) with the appropriate word(s).
________ is a disease in which bones lose mass, become porous, and are prone to fractures.
Fill in the blank(s) with the appropriate word(s).
Directly under the occipital lobes of the cerebrum is a large cauliflower-like structure known as the __________.
A. brain stem B. cerebellum C. diencephalon