The adult spinal cord ends between the level L1 and L2 of the vertebral column
Indicate whether the statement is true or false
TRUE
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__________ are structures that promote the upward flow of blood in leg veins by preventing backflow.
Fill in the blank(s) with the appropriate word(s).
The coronary sulcus is a groove that
A) marks the border between the atria and ventricles. B) marks the boundary line between the right and left ventricles. C) marks the boundary line between the right and left atria. D) separates the atrioventricular valves from the atria. E) separates the coronary arteries from the coronary veins.
Which of the following is a retroperitoneal organ?
A) jejunum B) liver C) stomach D) pancreas
Which structure of the larynx vibrates to produce sound?
A) epiglottis B) vestibular ligaments C) tracheal rings D) vocal ligaments