Which of the following statements accurately describes the pattern of ventricular contraction?
A. The ventricles contract from the base toward the apex moving blood into the great arteries located superior to the ventricles.
B. The ventricles contract from the apex toward the base moving blood into the great arteries located inferior to the ventricles.
C. The ventricles contract from the base toward the apex moving blood into the great arteries located inferior to the ventricles.
D. The ventricles contract from the apex toward the base moving blood into the great arteries located superior to the ventricles.
Answer: D
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a) Mucosa b) Lamina propria c) MALT d) Muscularis e) Epithelium
B-lymphocytes are categorized as part of the adaptive branch of the immune system for all of the following reason but one. Which of the following is not one of the reasons B-lymphocytes are considered part of the adaptive immunity?
A) Their receptors will bind to only one antigen. B) They are a first line of defense that can begin killing pathogens immediately. C) They require costimulation from an activated T-helper cell. D) They produce memory cells when activated.
Which is not correct regarding the urinary bladder?
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Which of the following is considered a "feminizing hormone"?
A. Estrogen B. Female gonadotropin-releasing hormone C. Follicle-stimulating hormone D. Androgen and progesterone E. Androgen