________ are clusters of lymphatic nodules deep to the epithelial lining of the small intestine.
A) Tonsils
B) Adenoids
C) Peyer's patches
D) Immune complexes
E) Lymph glands
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Question 2) Fraternal twins result from
A) one egg that is fertilized by two different sperm.
B) two different zygotes.
C) one zygote that splits into two zygotes.
D) two eggs fertilized by one sperm cell.
E) a blastula that splits into two blastulas.
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Question 3) ________ are large lymphatic nodules that are located in the walls of the pharynx.
A) Tonsils
B) Peyer's patches
C) Lymph nodes
D) Immune complexes
E) Spleens
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Question 4) In a(n) ________, an incision is made in the perineal musculature.
A) episiotomy
B) lumbar puncture
C) crowning
D) epidural
E) peritoneal cut
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Question 5) The medulla of a lymph node contains ________ lymphocytes and macrophages.
A) cytotoxic T
B) medullary
C) NK
D) B
E) cordal
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Question 6) Uterine contractions that are irregular and brief that occur toward the end of gestation are called
A) parturition.
B) expulsion.
C) true labor.
D) Braxton-Hicks.
E) dilation.
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Question 7) Most of the lymph returns to the venous circulation by way of the
A) right lymphatic duct.
B) thoracic duct.
C) cisterna chyli.
D) hepatic portal vein.
E) dural sinus.
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Question 8) An infant born ________ prematurely has a good chance of survival.
A) 1.5 months
B) 3 months
C) 4 months
D) 5 months
E) 6 months
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Question 9) All of the following are true of the thymus gland except that it
A) activates B cells.
B) reaches its greatest relative size during the second year of life.
C) involutes after puberty.
D) produces T cells.
E) lies in the anterior mediastinum.
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Question 10) The stage of labor during which the fetus emerges from the vagina is called the ________ stage.
A) emergence
B) dilation
C) placental
D) expulsion
E) fetal