Name two shunts that bypass the lungs in a fetus. Briefly explain the structures these shunts connect
What will be an ideal response?
1. The foramen ovale is a flap-like opening between the right atrium and the left atrium of the fetal heart. Some of the blood entering the right atrium flows directly into the left atrium, bypassing pulmonary circulation.
2. The ductus arteriosus is a vessel connecting the pulmonary trunk and the aorta. Blood that happens to enter the right ventricle is pumped into the pulmonary trunk, supposedly on its way to the lungs. However, that blood is transported from the pulmonary trunk through ductus arteriosus into the aorta.
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Most muscles that move the thigh originate on the
A. iliotibial tract. B. os coxae. C. sacral spine. D. linea alba. E. head of the femur.
Morris has lung cancer and is given the drug Avastin. His doctor says that the drug is a
monoclonal antibody. This means that the drug consists of A) a single type of antigen. B) a cocktail of many types of antibodies. C) a cocktail of many types of antigens. D) a single type of antibody.
In adults, the medullary cavities of most long bones contain red marrow
Indicate whether this statement is true or false.
The inferior cerebellar peduncles connect the cerebellum to the midbrain.
Answer the following statement true (T) or false (F)