The dilation stage of labor ________.
A) occurs about an hour after the onset of true labor
B) includes dilation of the cervix
C) usually is short—a few minutes in length
D) has contractions of the uterus spread only a few minutes apart
E) All of the answers are correct.
Ans: B) includes dilation of the cervix
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Blocklike masses that form from paraxial mesoderm and develop into muscle, axial skeleton, cartilage, and dermis are known as __________
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NK cells attack
A) cancer cells. B) foreign cells. C) virus-infected cells. D) All of the answers are correct. E) None of the answers are correct.
Sympathetic stimulation ____________________ the heart rate, whereas parasympathetic stimulation ____________________ it
Fill in the blank(s) with correct word
What is the value of transitional epithelium in the urinary system?
A. It allows distension. B. Its cilia help propel the urine. C. It can contract to produce peristalsis. D. It provides cushioning. E. It protects against trauma.