Suprasternal notch

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Suprasternal notch
SSNa.jpg
Suprasternal notch
Gray1194.png
Anterolateral view of head and neck. (Jugular notch labeled at bottom center.)
Latin Incisura jugularis sternalis,
fossa jugularis sterni
Gray's p.120
Anatomical terms of bone

The suprasternal notch (fossa jugularis sternalis), also known as the jugular notch, is part of human anatomy. It is a large, visible dip.

Structure[edit]

The jugular notch is found at the superior border of the manubrium of the sternum, between the clavicular notches.

Clinical significance[edit]

Intrathoracic pressure is measured by using a transducer held in such a way over the body that an actuator engages the soft tissue that is located above the suprasternal notch. Arcot J. Chandrasekhar, MD of Loyola University, Chicago, is the author of an evaluative test for the aorta using the suprasternal notch.[1] The test can help to recognise the following conditions:

To carry out this test it is necessary to place an index finger or middle finger on the notch and palpate it. In a young normal person there should be no palpable pulse. A prominent pulse may be indicative of an uncoiled aorta, arch aneurysm, or a tortuous blood vessel. The most likely cause of a suprasternal pulse in an adult is an aortic arch aneurysm, while the most likely cause in a child is coarctation of the aorta.

References[edit]

  1. ^ MedEd at Loyola MEDICINE/PULMONAR/PD/pstep37a.htm - Evaluative tests using the suprasternal notch