TISSUES: Groups of cells that are similar in structure and ...



TISSUES: Groups of cell which are similar in structure and function.

|TYPE & DESCRIPTION |SUBGROUPS |APPEARANCE |FUNCTION |LOCATION |

|EPITHELIAL | | | | |

|“covering” |SIMPLE SQUAMOUS | | | |

| | | | | |

|-closely packed cells | | | | |

|-classified by 2 names, |SIMPLE CUBOIDAL | | | |

|first - # of layers | | | | |

|second - shape of cells | | | | |

|-apical or free surface |SIMPLE COLUMNAR | | | |

|-no blood supply | | | | |

|(avascular), depends on | | | | |

|diffusion of nutrients from| | | | |

|underlying connective |PSEUDOSTRATIFIED COLUMNAR | | | |

|tissue | | | | |

|-basement membrane | | | | |

|-regenerates |STRATIFIED SQUAMOUS | | | |

| | | | | |

| | | | | |

| |TRANSITIONAL | | | |

|MUSCLE | | | | |

|“movement” |SKELETAL |-striated | | |

| | |-multinucleated | | |

|-elongated cells called | | | | |

|fibers that contract | | | | |

|-voluntary (skeletal) and | | | | |

|involuntary (smooth, and | | | | |

|cardiac) |SMOOTH |-uninucleated | | |

|-amitotic, cell does not | |-no stripes | | |

|divide after puberty | | | | |

|-injured tissue repaired | | | | |

|with scar tissue (fibrosis)| | | | |

| | | | | |

| |CARDIAC | | | |

| | |-striated | | |

| | |-uninucleated | | |

| | |-intercalated disks | | |

|TYPE & DESCRIPTION |SUBGROUPS |APPEARANCE |FUNCTION |LOCATION |

|CONNECTIVE | | | | |

|“support” |BONE | | | |

| | | | | |

|-extracellular matrix, inorganic | | | | |

|material surrounding living cells | | | | |

|-matrix is secreted by the cells |CARTILAGE | | | |

|-matrix varies from liquid (blood, | | | | |

|areolar) to gel-like (hyaline | | | | |

|cartilage) to solid (bone) | | | | |

|-matrix may include collagen, elastic, |DENSE CONNECTIVE | | | |

|or reticular fibers (also secreted by | | | | |

|cells) | | | | |

|-good blood supply, with exceptions | | | | |

|-regenerates |AREOLAR | | | |

| | | | | |

| | | | | |

| | | | | |

| |ADIPOSE | | | |

| | | | | |

| | | | | |

| | | | | |

| |RETICULAR | | | |

| | | | | |

| | | | | |

| | | | | |

| |BLOOD | | | |

| | | | | |

| | | | | |

|NERVE | | | | |

|“control” |NEURONS | | | |

| | | | | |

|-conduct and receive electrochemical | | | | |

|impulses | | | | |

|-extensions of cytoplasm, axons (send | | | | |

|impulses), dendrites (receive impulses)|SUPPORTING CELLS | | | |

|-amitotic after birth |called | | | |

|-injured tissue repaired with scar |___________ | | | |

|tissue (fibrosis) | | | | |

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