How many sections is the small intestine divided into?

The middle section of the pharynx is the

The pendulous pouch that contains the testes is the

What organ is located in a retroperitoneal position?

The inferior, constricted area of the uterus is the

In which chamber of the heart does pulmonary circulation terminate?

Which of the following is used to describe bones which are always present in the human skeleton?

Which of these structures is an orifice of the heart through which oxygenated blood passes?

A 24-year-old male presents to his primary care physician for evaluation of recurrent fever, night sweats, and weight loss. The patient reports that he has been experiencing these symptoms for the past several weeks. After a complete physical exam and a series of laboratory and diagnostic tests, the patient undergoes an excisional lymph node biopsy (see image). He is determined to have Stage IIB disease. Which of the following clinical findings would be an adverse prognostic factor in this patient?  

A patient develops fever, chills, and back pain shortly after starting a blood transfusion. Laboratory tests show an increase in bilirubin and a decrease in haptoglobin levels. Which of the following is the most appropriate diagnostic test to confirm an acute hemolytic transfusion reaction?