The ________ divides the aorta into the thoracic aorta and the abdominal aorta.
A) pericardium
B) mediastinum
C) diaphragm
D) peritoneum
E) pleura
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Question 2) Which of the following is not part of oocyte activation?
A) softening of the zona pellucida
B) influx of sodium ion
C) membrane depolarization
D) release of calcium ion from smooth ER
E) discharge of exocytotic vesicles adjacent to the oocyte membrane
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Question 3) Near the carotid sinus,
A) the common carotid divides into an internal and an external branch.
B) the internal carotids fuse with the vertebral arteries.
C) the external carotid forms the internal carotid.
D) veins and arteries anastomose.
E) the aorta gives rise to the common carotids.
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Question 4) Sperm cannot fertilize an oocyte until they
A) undergo capacitation.
B) undergo meiosis.
C) lose their flagellum.
D) are in the vagina for 3 days.
E) are activated by sustentacular cells of the vagina.
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Question 5) The internal carotids and the basilar artery are interconnected by an anastomosis called the
A) common carotid artery.
B) basal ring.
C) cerebral arterial circle.
D) external carotid artery.
E) arterial bypass.
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Question 6) The transfer of genetically determined characteristics from generation to generation is termed
A) development.
B) differentiation.
C) inheritance.
D) phylogeny.
E) maturity.
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Question 7) The ________ carries nutrient-rich blood into the liver.
A) hepatic artery
B) gastric vein
C) myenteric capillaries
D) hepatic portal vein
E) superior mesenteric vein
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Question 8) The formation of different types of cells required in development, or ________, occurs through selective changes in genetic activity.
A) differentiation
B) cupellation
C) deployment
D) gametogenesis
E) phylogeny
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Question 9) The two vertebral arteries fuse to form a large artery called the
A) cerebral arterial circle.
B) common carotid artery.
C) external carotid artery.
D) internal carotid artery.
E) basilar artery.
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Question 10) The gradual modification of anatomical structures and physiologic characteristics from fertilization to maturity is termed
A) gametogenesis.
B) ontogeny.
C) development.
D) transformation.
E) disablement.
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