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Section of dermis. The papillary dermis consists of loose connective tissue. Loose connective tissue, also known as areolar tissue, is a cellular connective tissue with thin and relatively sparse collagen fibers. They have a semi-fluid matrix with lesser proportions of fibers. Its ground substance occupies more volume than the fibers do.
The human areola (areola mammae, / əˈriːələ / [1][2] or / ˌæriˈoʊlə / [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.
The lamina propria is a thin layer of loose (areolar) connective tissue, which lies beneath the epithelium, and together with the epithelium and basement membrane constitutes the mucosa. As its Latin name indicates, it is a characteristic component of the mucosa, or the mucosa's "own special layer." Thus, the term mucosa or mucous membrane ...
Special connective tissue consists of cartilage, bone, blood and lymph. [9] Other kinds of connective tissues include fibrous, elastic, and lymphoid connective tissues. [10] Fibroareolar tissue is a mix of fibrous and areolar tissue. [11] Fibromuscular tissue is made up of fibrous tissue and muscular tissue.
The epicranial aponeurosis or galea aponeurotica is a tough layer of dense fibrous tissue which anchors the above layers in place. It runs from the frontalis muscle anteriorly to the occipitalis posteriorly. L: Loose areolar connective tissue. This layer has a gel-like consistency, and allows the more superficial layers of the scalp to shift ...
This vascular membrane is held together by areolar tissue covered by mesothelial cells from the delicate strands of connective tissue called the arachnoid trabeculae. In the perivascular spaces, the pia mater begins as mesothelial lining on the outer surface, but the cells then fade to be replaced by neuroglia elements. [9]
Skin. Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation. Other animal coverings, such as the arthropod exoskeleton, have different developmental origin, structure and chemical composition. The adjective cutaneous means "of the skin ...
Endomysium. Structure of a skeletal muscle. (Endomysium labeled at bottom center.) The endomysium, meaning within the muscle, is a wispy layer of areolar connective tissue that ensheaths each individual muscle fiber, or muscle cell. [1][2][3] It also contains capillaries and nerves. It overlies the muscle fiber's cell membrane: the sarcolemma.