Lab Chapter 6

Catilage

The extracellular matrix is dense and firm and contains collagen fibers. Used to protect, connect, assist with movement, and more

Bone

The extracellular matrix is dense and firm and contains collagen fibers. Used to protect, connect, assist with movement, and more. Calcium phosphate and other chemicals make the done more solid.

Hyaline cartilage

Forms the articular cartilage on the ends of the long bones and more. Contains a large amount of collagen fibers, and it can provide firm support with some flexibility

Elastic Cartilage

Found in the outer structure of the ear and epiglottis which has the task of blocking the entrance to the larynx during swallowing

Fibrocartilage

Contains densely packed collagen fibers that contribute to its function of support. Intervertebral disc and menisci in your knee are made of fibrocartilage.

Chondrocyte

Chondros=cartilage, cyte=cell. Used to be condroblast which makes the matrix

Lacuna

In both types of bone tissue

Compact bone

The lamellae form a distinctive pattern of concentric circles around the central canal. Always present at the surface of the bone

Spongy

The lamellae have no apparent pattern

Osteocyte

Responsible for maintaining healthy bone matrix. Reside in lacunae. Connect to each other with tentacle like extensions. In both types of bone tissue. Once an osteoblast that made bone matrix. Monitor what happens in bone

Calcium phosphate

Hardens bone and in important in resisting compressive forces. In both types of bone tissue

Canaliculus

Connect the lacunae. In both types of bone tissue. Gap junctions are found at the end

Lamella

In both types of bone tissue, the matrix is formed into thin layers. Made of collagen

Central Canal

The tube that surrounds the blood vessel

Perforating canal

Allow blood vessels to travel from one central cana; to another

Concentric lamella(blue dots)

Circular layers of matrix. Share the same center

Haversian system/Osteon

Osteon. Each central canal and concentric lamellae that surround the concentric lamellae

Interstitial lamella

What the gaps between the osteons that are filled with portions of matrix

Circumferential lamella

Multiple layers for the smooth outermost surface of compact bone

Periosteum

Protective lining made of dense irregular connective tissue. Tightly attached to the outer surface of the bone by perforating fibers

Endosteum

Protective lining made of dense irregular connective tissue

Perforating fiber

Sharpeys fibers. Bundles of collagen. Link the periosteum to the bone