Online Access Free USMLE Exam Questions

What type of cells secrete insulin?

• A.Acinar cells
• B.Alpha cells
• C.Plasma cells
• D.Beta cells

Which of the following passageways contain the maxillary nerve and blood vessels?

• A.Foramen ovale
• B.Stylomastoidforamin
• C.Inferior orbital fissure
• D.Carotid canal

The release of Angiotension II causes which of the following to occur?

• A.Increased filtration rate
• B.Decreased glomerular hydrostatic pressure
• C.Increase synthesis of Vitamin E
• D.Increased release of erythropoietin

Juxtaglomerular cells combine with _______ cells to form the juxtagomerular apparatusin the kidney.

• A.Renal pelvis
• B.Nephron
• C.Renal sinus
• D.Macula densa

Which of the following months matches with an infant first having the ability to sit-up independently?

• A.6 months
• B.8 months
• C.4 months
• D.10 months