Mohrenheim pit
The Mohrenheim-Grube or in Latin Fossa infraclavicularis (also called Trigonum clavipectorale , Trigonum deltoideopectorale and Sulcus deltoideopectoralis ) is a depression below the collarbone (clavicle). The name is derived from the doctor Joseph Jakob von Mohrenheim (1759–1799, surgeon in Vienna and St. Petersburg). It is bounded by the collarbone, the deltoid muscle and the pectoralis major muscle . It continues into the deltopectoral sulcus .
The Mohrenheim pit is divided into a superficial and a deep layer by the clavipectoral fascia. In the area of the Mohrenheimgrube, the cephalic vein flows into the axillary vein after passing through the clavipectoral fascia . In addition, the thoracoacromial artery breaks through the fascia and splits into several branches:
- Ramus deltoideus
- Ramus acromialis
- Ramus clavicularis
- Rami pectorales (accompanied by Nervi pectorales)
The large vessels and nerve bundles supplying the arm are visible in the deeper layer. These are the axillary artery , the axillary vein and the three nerve cords of the brachial plexus , the pars infraclavicularis . In addition, below the fascia to the axillary lymph nodes associated lymph nodes axillary apical .
Further laterally, there are also the arteria , vena, and suprascapular nerve .
swell
- Roche Medical Lexicon. 4th edition. Munich 1999.
- Pocket Atlas of Anatomy. 8th edition. 2003 Stuttgart.