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Many adjacent epithelial tissues (which are avascular) get their nutrients from the interstitial fluid of areolar tissue; the lamina propria is areolar in many body locations. Its fibers run in random directions and are mostly collagenous, but elastic and reticular fibers are also present. Areolar tissue is highly variable in appearance.
It consists mainly of loose areolar and fatty adipose connective tissue and is the layer that primarily determines the shape of a body. [ medical citation needed ] In addition to its subcutaneous presence, superficial fascia surrounds organs , glands and neurovascular bundles , and fills otherwise empty space at many other locations.
Pus moves by the path of least resistance, [5] e.g. the fluid will more readily dissect apart loosely connected tissue planes, such the fascial spaces, than erode through bone or muscles. In the head and neck, potential spaces are primarily defined by the complex attachment of muscles, especially mylohyoid, buccinator, masseter, medial ...
The connective tissue of the lamina propria is loose and rich in cells. The cells of the lamina propria are variable and can include fibroblasts, lymphocytes, plasma cells, macrophages, eosinophilic leukocytes, and mast cells. [2] It provides support and nutrition to the epithelium, as well as the means to bind to the underlying tissue.
On either side, the epicranial aponeurosis attaches to the anterior auricular muscles and the superior auricular muscles. Here it is less aponeurotic , and is continued over the temporal fascia to the zygomatic arch as a layer of laminated areolar tissue .
The human earlobe (lobulus auriculae), the lower portion of the outer ear, is composed of tough areolar and adipose connective tissues, lacking the firmness and elasticity of the rest of the auricle (the external structure of the ear). In some cases the lower lobe is connected to the side of the face.
There are multiple ways of classifying tissues: one classification scheme is based on tissue functions and another analyzes their cellular components. Stromal tissue falls into the "functional" class that contributes to the body's support and movement. The cells which make up stroma tissues serve as a matrix in which the other cells are ...
A male breast. The human areola (areola mammae, / ə ˈ r iː ə l ə / [1] [2] or / ˌ ær i ˈ oʊ l ə / [2] [3]) is the pigmented area on the breast around the nipple.More generally, an areola is a small circular area on the body with a different histology from the surrounding tissue, or other small circular areas such as an inflamed region of skin.