BIO 1700 Lecture Notes - Lecture 7: Abdominal Cavity, Loose Connective Tissue, Chondroblast
5 Mar 2017
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Ch 5- structure and evolution of skin and the importance of the ozone layer. Elastic fibres: contains adipocytes, contains melanocytes, contains mesenchyme cells (have stem cells in the embryo cells) Can produce osteoblasts (basic bone cells: contains microphages, areolar tissues: padding. Wo(cid:374)"t ask spe(cid:272)ifi(cid:272)s o(cid:374) ea(cid:272)h (cid:272)ell type: adipose tissues: similar to areolar tissues but in higher quantity. Found under skin, in glutes, in hips, on abdominal cavity, etc. Dense conjunctive tissues: irregular and dense conjunctive tissues (in the dermis), regular and dense conjunctive tissues (ligaments, bind bones to other bones. Skin- structure and function: 7-8% of mass, storage of lipids (under the skin, split into epidermis and dermis, hypodermis= adipocytes (excess= cellulite). Skin colour: melanocyte-> melanin -> grouped in melanosomes, eumelanin: brown-black, pheomelanine: brown-red orange. Glands: sebaceous glands: alveolar, associated with hair, produce sebum (fatty acids + cholesterol + waxes), lubrication of hair and epidermis, sudoripares glands: excretion associated with stress.
