Pectinate muscles are found on the
A. posterior wall of the right ventricle.
B. external wall of the right atrium.
C. anterior wall of the right ventricle.
D. posterior walls of the right and left ventricles.
E. internal walls of the right and left atria.
Answer: E
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The cervical plexus is formed by the
A. posterior rami of spinal nerves C2-C6. B. posterior rami of spinal nerves C4-C8. C. anterior rami of spinal nerves C1-C4. D. anterior rami of spinal nerves C3-C7. E. rami communicantes of spinal nerves C1-C7.
The sheet of fibrous connective tissue that gives attachment to muscular fibers and is a means of origin or insertion for flat muscle is called:
A) ligament B) aponeurosis C) fascia D) tendon
Which bulk mineral is a major cation in body fluids and is essential for normal membrane function?
A) calcium B) iron C) sodium D) chloride E) phosphorus
Which of the following valves would be affected if papillary muscles and/or chordae tendinae stopped functioning?
What will be an ideal response?