Blood flowing out of the pulmonary veins flows into the ________ and then proceeds through the ________.
A. pulmonary trunk; right ventricle
B. left ventricle; aortic semilunar valve
C. left atrium; mitral valve
D. right atrium; tricuspid valve
E. right ventricle; pulmonary trunk
Answer: C
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A ________ allele will always be expressed regardless of what the other allele happens to be
A) homologous B) homocentric C) recessive D) maternal E) dominant
Bones are constantly undergoing resorption for various reasons. Which of the following cells accomplishes this process?
A) osteoclast B) osteocyte C) osteoblast D) stem cell
Which type of cell releases chemicals in response to injury and plays an important role in inflammation?
A. Adipocyte B. Osteoclast C. Mast cell D. Stem cell E. Macrophage
The infundibulum is a ________.
A. bulky nucleus composed of the paraventricular nucleus and the supraoptic nucleus B. depression of the sphenoid bone that protects the pituitary gland C. portal system between the hypothalamus and the pituitary gland D. mass of endocrine and neural cells E. projection of the hypothalamus from which the pituitary gland hangs