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Epithelial tissue
Connective tissue
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Cartilaginous tissue
It is built of intercellular substance (basic) in which protein fibres and cell elements are immersed. Cell elements are cartilaginous cells (chondrocytes) and cartilaginous lacunas that surround them. In case of any mechanical injuries, some chondrocytes metamorphose into chondrogenic cells, and another ones - into chondroclastic cells, which heals the injury.
Cartilaginous tissue is uninnervated and unvascularized.
We can divide cartilaginous tissues into following groups:
Hyaline tissue
resistant to attrition
builds joints and sternal rib ends
forms skeleton in embryonal and fetal periods
Elastic tissue
does not ossify (does not undergo mineralization)
forms auricle
contributes to part of larynx and epiglottis
Fibrous tissue
built of collagen fibres
high resistance to injuries
places:
spine intervertebral discs
places where tendons and bones are joined
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