Fluid Connective Tissues

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Spongy Bone

Cancellous bone lacks osteons and is comprised of an irregular lattice of thin columns of bone called trabeculae.

Concentric lamellae

Concentric rings

Osteon

Haversian system, which is a cylindrical structuren resembling a sectioned tree trunk.

Elastic cartilage

Identical to hyaline cartilage except that it contains an abundant network of fine elastic fibers in addition to collagen fibers. Located in hte auricle of the external ear, larynx, and epiglottis.

Osteocytes

Mature Cells.

platelets

Small cell fragments that lack nuclei and are frequently clumped together. Perform a hemostatic function to stop bleeding when there is a trauma to blood vessels.

Compact Bone

The densest and most prevalent form of bone tissue.

Perichondrium

The membrane surrounding cartilage

Hyaline Cartilage

The most abundant type of cartilage in the body, a conduit for nutrients and waste products.

Plasma

The transport medium for the formed elements as well as for nutrients and metabolic by products that must be removed from the blood.

Fibrocartilage

This cartilage is not enveloped by perichondrium. It is found in the pubic symphisis, outer portion of intervertebral discs and discs of knee joints.

Location of Hyaline Cartilage

Tracheal and bronchi

Cartilage

a specialized form of connective tissue with a firm consistency of extracellular matrix that allows thte tissue to bvear mechanical stress without permanent distortion.

lacunae

fluid cavities

Hematopoisesis

production of red blood cells (occurs in spongy bone, where bones are not heavily stressed or stress occurs from many directions).

erythrocytes

red blood cells; appear as pink biconcave discs that are filled with hemoglobin and lack nuclei.

leukocytes

white blood cells have dense purple nuclei of varying shapes.


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