Corpus: Subcutis
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Synonyms: subcutis, subcutaneous tissue, hypoderm, hypodermis, tela subcutanea, hypodermis, subcutaneous cell tissue
English:
Definition[Bearbeiten]
The term subcutis' refers to the layer of the skin below the cutis, which consists mainly of loose connective tissue and fatty tissue and in its entirety forms the panniculus adiposus.
Structure[Bearbeiten]
The fatty tissue of the subcutis is structured by connective tissue septa into lobular islands of fatty tissue. Retinacula of collagen fibres radiating into the cutis keep the subcutis in contact with the underlying fascia and the overlying skin layers.
Blood vessels and nerve fibres run in the connective tissue septa. The subcutis is richly vascularised and thus ensures the oxygen supply and nutrition of the skin. Numerous fine nerve branches are responsible for the sensitive supply. In addition, the subcutis contains special sensory cells (Vater-Pacini corpuscles) for the perception of vibrational stimuli.
Tasks[Bearbeiten]
The subcutis primarily serves as a sliding layer between the actual skin and the body fascia. It also plays an important role in the body's heat balance, as it serves as insulation. Another aspect is its importance as an energy store by mobilising fat reserves when needed.
Clinic[Bearbeiten]
The subcutis can be the seat of tumours, e.g. lipomas or liposarcomas.
Podcast[Bearbeiten]
Image source[Bearbeiten]
- Podcast image source: ©Leonardo Rossatti / Pexels