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Connective Tissues
Important information to know regarding the types of connective tissues!
Term | Definition |
---|---|
Areolar Connective Tissue Locations | Under the epithelial layer of organ systems with external openings (digestive track, respiratory system, and under the dermis of the skin). |
Reticular Connective Tissue Locations | Bone Marrow, Peyer’s Patches, lymph nodes, kidney, liver, and spleen. |
Adipose Connective Tissue Locations | Under your skin (subcutaneous fat), between your internal organs (visceral fat), and even in the inner cavities of bones (bone marrow adipose tissue). |
Dense Regular Connective Tissue Locations | Tendons, ligaments, aponeuroses, the respiratory tract, and blood vessel walls. |
Dense Irregular Connective Tissue Locations | Mostly in the reticular layer (or deep layer) of the dermis, the sclera, and the deeper skin layers. |
Hyaline Cartilage Connective Tissue Locations | At the end of bones in free-moving joints as articular cartilage, at the ends of the ribs, in the nose, larynx, trachea, and bronchi. |
Elastic Cartilage Connective Tissue Locations | Nasal tip, external ear, eustachian tubes, larynx. |
Fibrocartilage Connective Tissue Locations | Meniscus in the knee, disks between the vertebrae in your spine, supporting muscles, tendons, and ligaments throughout the body. |
Areolar Connective Tissue Characteristics | Has an abundance of ground substances, plus thin and relatively few fibers and cells. The main cellular elements are fibroblasts and a smaller amount of adipocytes. |
Reticular Connective Tissue Characteristics | Has a branched and mesh-like pattern, often called reticulum, due to the arrangement of reticular fibers (reticulin). |
Adipose Connective Tissue Characteristics | Mainly composed of fat cells called adipocytes. |
Dense Regular Connective Tissue Characteristics | A white, flexible tissue that contains tightly packed bundles of collagen fibers. |
Dense Irregular Connective Tissue Characteristics | Fibers that are not arranged in parallel bundles. It consists of mostly collagen fibers and has less ground substance. |
Hyaline Cartilage Connective Tissue Characteristics | It is texturally slippery and smooth. It is a collagen matrix that is packed with glycoproteins. |
Elastic Cartilage Connective Tissue Characteristics | Provides tensile strength and resistance to stretching. It contains both elastin and collagen fibers called fibroblasts. |
Fibrocartilage Connective Tissue Characteristics | Glossy blue-white in appearance and very resilient. It is tough, and very strong. It has large bundles of collagen fibers made up of Type 1 Collagen. |
Areolar Connective Tissue Functions | It provides support and helps to protect organs, muscles, and many other tissues. It also helps to bind the skin together. |
Reticular Connective Tissue Functions | Acts as structural support by creating and maintaining the fine networks of fibers that serve as the framework for most lymphoid organs (spleen, red bone marrow, lymph node stromal cells). |
Adipose Connective Tissue Functions | Primarily serves as an energy storing reservoir, but it also insulates the body from extreme temperatures, cushions vital organs, and secretes hormones and biological factors. |
Dense Regular Connective Tissue Functions | Supports, protects, and holds bones, muscles, and other tissues and organs in place. |
Dense Irregular Connective Tissue Functions | Provides strength, making the skin resistant to tearing by stretching forces from different directions. |
Hyaline Cartilage Connective Tissue Functions | Helps your bones move smoothly past each other in your joints. |
Elastic Cartilage Connective Tissue Functions | Supports parts of your body that need to bend and move to function. It can bounce back to its original shape, even after a strong force. |
Fibrocartilage Connective Tissue Functions | Acts as a cushion within joints, where it helps manage compression forces and reduces stress placed on joints. |