A large vein that receives blood from the head, neck, upper extremities, and thorax and delivers it to the right atrium of the heart.
- Superior vena cava syndrome
The symptoms that result from compression of the large vein that carries blood down to the heart. The superior vena cava is a large vein that transmits blood from the upper body back to the heart. The superior vena cava is located in the middle of the chest and is surrounded by rigid structures and […]
Lying just above or upon. Overlying. The opposite of superjacent is subjacent. Other related terms include adjacent and circumjacent. From super-, above, over + the Latin jacere, to lie = to lie above.
Beyond the normal number, extra. For example, a supernumerary chromosome is an extra one beyond the usual number of 46, and a supernumerary digit is an extra finger or toe.
- Supernumerary nipple
An extra nipple. Supernumerary nipples are usually smaller than normal and vestigial (nonfunctional, without accompanying mammary glands). They tend to occur along a roughly curved line that extends from near the armpit, through the center of the normal breast, and down to the lower abdomen. This distribution is very similar to the location of nipples […]
- Supernumerary placenta
A succenturiate or accessory placenta.