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
C
Explanation:
A) The ventral thoracic artery arises and passes caudally to supply the medial ends of the pectoral muscles.
B) Each vertebral artery gives off branches to the deep neck muscles and to the spinal cord near the foramen magnum.
D) Each internal maxillary and each carotid plexus carries blood to the brain, eye, and other deep structures of the head.
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Which of the following is incorrect pertaining to the thoracic sympathetic trunk?
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Which of the following is the last step in the sequence of events happening when cyclic AMP acts as a second messenger?
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During crossbridge cyclin, tension is created by...
What will be an ideal response?