How is the patella classified based on shape?
A) Irregular bone
B) Sesamoid bone
C) Long bone
D) Flat bone
Answer: B
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In addition to producing cerebral spinal fluid, ependymal cells may
a. contribute to the formation of the blood-brain barrier. b. act as immune cells. c. function as neural stem cells. d. conduct neural impulses. e. produce myelin.
A man eating in a restaurant chokes on a piece of food. He grabs his neck, unable to speak. Why is it significant that the man cannot talk? Where has the food lodged?
What will be an ideal response?
The proximal portion of the nail is the
A. nail root. B. hyponychium. C. nail body. D. nail fold. E. eponychium.
Which of the following statements regarding intrinsic regulation of the heart is true?
A. Stretching the SA node will decrease generation of action potentials in the node. B. Decreased venous return increases cardiac output. C. The heart's pumping effectiveness is greatly influenced by small changes in afterload. D. If cardiac muscle fibers are slightly stretched, they have a stronger contraction force. E. If cardiac muscle fibers are slightly stretched, they have a weaker contraction force.