Soon after birth, what happens to the foramen ovale?
A. It closes to form the fossa ovalis.
B. It only allows blood to flow between the left and right ventricles.
C. It forms the ductus arteriosus.
D. It forms the ligamentum arteriosum.
Answer: A
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A flexible instrument, passed through a body channels for withdrawal of fluids from or introduction of fluids into the body cavities, is called a:
A) cautery B) hemostat C) cystocentesis D) endotracheal tube E) catheter
An example of gross anatomy would be ________.
A. viewing an x-ray B. using a microscope C. performing a complete cellular blood count D. determining the etiology of a disease
The results of the ECG with various leads (arrangements of positive and negative electrodes) are identical, so it does not matter which lead is used.
Answer the following statement true (T) or false (F)
T lymphocytes ________.
A. mature in the thymus B. secrete antibodies C. differentiate in the bone marrow D. All of the choices are correct.