MindMap Gallery Connective tissue
This is a mind map about connective tissue, with the main contents including: blood and lymph, bone tissue, cartilage tissue, narrow sense connective tissue, definition and function.
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Connective tissue
Definition and Function
Definition: consists of cells and a large number of extracellular matrix (fibrous matrix), which plays a role in connection, support, protection, transportation, etc.
Important functions
Connecting organs and tissues
Provide mechanical support (such as bone, cartilage)
Storage of energy (fat tissue)
Immune Defense (white blood cells)
Transport substances (blood transports oxygen and nutrients)
Connective tissue in narrow sense
Intrinsic connective tissue
Loosen connective tissue (cellular tissue)
Features: Loose fibers and many types of cells.
composition
Cells: fibroblasts, macrophages, plasma cells, mast cells, and adipocytes.
Fiber: collagen fibers (toughness), elastic fibers (elastic), mesh fibers (support).
Matrix: proteoglycans, glycoproteins (such as laminin).
Distribution: interorgan filling, surrounding blood vessels.
Functions: Connect, repair, defense.
Tight connective tissue
Features: dense fibers, few cells
Classification
Regularly dense (such as tendons, ligaments, and fibers are arranged in parallel).
Irregularly dense (such as dermis, organ membranes, fiber interweaving).
Function: tensile resistance, mechanical protection.
Fat tissue
Cell: Adipocytes (storage lipid droplets)
Classification
White fat (energy storage, heat insulation)
Brown fat (heat production)
Distribution: subcutaneous, visceral
Reticular connective tissue
Composition: reticular cells reticular fibers
Distribution: bone marrow, lymph nodes, spleen
Function: Constituting a hematopoietic and immune microenvironment
Cartilage tissue
Features: Solid matrix (containing chondroitin sulfate), avascular
Classification
Clear cartilage (such as articular surface, nasal cartilage): less fiber, anti-pressure
Elastic cartilage (such as auricle, epiglottis): many elastic fibers, flexible
Fibrocartilage (such as intervertebral disc, pubic joint): Collagen fibers are dense and anti-friction.
Cell: Chondrocytes (located in the cartilage trap).
Distribution: joints, respiratory tract, auricle.
Bone tissue
Features: Hard (calcified matrix).
structure
Cells: Osteocytes (located in bone traps), osteoblasts, osteoclasts.
Matrix: Collagen fibers Hydroxyapatite (calcium salt).
Bone unit (Havers system): Concentric circular bone plates surround the central canal.
Functions: Support, protect, and calcium storage.
Blood and lymph
blood
composition
Blood cells
Red blood cells (Transport O₂/CO₂)
Leukocytes (immunity: neutrophils, lymphocytes, etc.)
Platelets (coagulation)
Plasma: water, protein (albumin, globulin), electrolyte.
Functions: Transport, immunity, hemostasis.
lymph
Composition: Lymph Lymphocytes.
Distribution: lymphatic vessels, lymph nodes.
Function: Immune defense, bodily fluid reflux.