Network of specialized cardiac muscle fibers that carry the cardiac impulse from the atrioventricular node to the ventricles of the...

Reflex changes in the size of the pupil triggered by the amount of light entering the eye. Bright light stimulates...

In anatomy, small area or point (e.g., punctum lacrimale, tiny opening of the tear ducts in the inner comers of...

Bacterial infection and septicemia occurring in a woman after childbirth, usually due to unsanitary conditions. Symptoms include inflammation of the...

Stone (calculus) in a salivary gland.  

Gradual and progressive acquisition and attainment of skills involving both mental and motor activity, as a child of 5 or...

Accumulation of pus and other inflammatory material (e.g., white blood cells) within either of the two psoas muscles of the...

Form of arthritis characterized by a painful, sudden attack of a hot, very swollen, red joint, caused by calcium crystals...

Small tumor containing sand-like particles and occurring in the meninges, ovaries, and certain other organs; also called sand tumor.  

Any disease, such as malaria, caused by a protozoan.