Which of the terms below describes the beginning or first discernable indication of the development of an organ or structure?
a) Conceptus
b) Primordium
c) Epigenesis
d) Karyotype
e) Fertilization age
b
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The type of connective tissue shown in the figure is the least specialized in adults. What is its primary function?
A) It cushions organs and provides support but permits independent movement. B) It provides a storage of energy resources. C) It provides firm attachment of muscles to bone, and conducts the pull of muscles. D) It provides insulation. E) It provides strength to resist forces applied from many directions.
While auscultating heart sounds during a checkup, Andy's doctor hears a high-pitched sound during ventricular contraction. Which type of valve could cause this?
A) incompetent tricuspid valve B) deficient pulmonary semilunar valve C) insufficient mitral (bicuspid) valve D) stenotic aortic semilunar valve
During embryological development the body first developed into ________ primary germ layers. (Note: Be sure to spell out your answer).
Fill in the blank(s) with the appropriate word(s).
High levels of testosterone inhibit the release of:
A) growth hormone-releasing hormone (GHRH). B) gonadotropin-releasing hormone (GnRH). C) corticotropin-releasing hormone (CRH). D) thyrotropin-releasing hormone (TRH).