Which of the following correctly matches the valve to its function?
A. Aortic valve-permits one-way blood flow from the right ventricle to the pulmonary trunk
B. Mitral valve-permits one-way blood flow from the left atrium to the left ventricle
C. Tricuspid valve-permits one-way blood flow from the right to the left atrium
D. Pulmonary valve-permits one-way blood flow from the left ventricle to the aorta
Answer: B
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Which of the following anchors the conceptus to the uterine wall?
A. Cytotrophoblast B. Syncytiotrophoblast C. Embryoblast D. Blastomere E. Yolk sac
Match the mesentery or membrane with its appropriate description.A. Mesentery of the small intestineB. Serous membrane that covers organsC. Attaches the liver to the diaphragmD. Connects lesser curvature of stomach to the liverE. Mesentery of the colonVisceral peritoneum
Fill in the blank(s) with the appropriate word(s).
Which of the following is/are possible uses of amino acids in energy production?
A. forming a ketoacid that can enter the citric acid cycle B. forming intermediate molecules of carbohydrate metabolism C. forming NADH that enters the electron-transport chain. D. All of the choices are uses of amino acids in energy production.
As the resistance of the air passages increases, the airflow through them _______________ (increases or decreases?) if the pressure gradient remains constant
Fill in the blank(s) with correct word