The “universal donor” blood type is:
a. type A
b. type B
c. type AB
d. type O
d. type O
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In a gomphosis, a tooth is held in place by fibrous structures known as __________ membranes
Fill in the blank with correct word.
Structures in the heart that carry electrical signals from the SA node to the AV node are called
A) the chordae tendineae. B) bundle branches. C) Purkinje fibers. D) internodal pathways. E) None of the answers are correct.
Which tonsils are the largest and most frequently infected?
A. Adenoids B. Pharyngeal tonsils C. Crypt tonsils D. Lingual tonsils E. Palatine tonsils
Which of the following statements regarding a closed head injury is correct?
A) In a closed head injury, the dura mater remains intact. B) Diffuse brain injury occurs with all open head injuries. C) Closed head injuries are less common than open head injuries. D) Intracranial pressure is usually minimal in a closed head injury.