TYPES OF CONNECTIVE TISSUES

Connective tissues are classified on the basis of types and relative abundance of cells, fibers and ground substance, and on the organization of fibers.

TYPES OF CONNECTIVE TISSUES:

1. Connective Tissue Proper which is subdivided into loose connective tissues and dense connective tissues.

Loose Connective Tissues. The fibers of loose connective tissues are loosely arranged between cells. The types of loose connective tissues are areolar connective tissue, adipose tissue, and reticular connective tissue.

A. AREOLAR CONNECTIVE TISSUE

B. ADIPOSE TISSUE

C. RETICULAR CONNECTIVE TISSUE.

Dense connective tissues contain more fibers, which are thicker and more densely packed, but have considerably fewer cells than loose connective tissues. There are three types: dense regular connective tissue, dense irregular connective tissue, and elastic connective tissue.

D. DENSE REGULAR CONNECTIVE TISSUE

E. DENSE IRREGULAR CONNECTIVE TISSUE

F. ELASTIC CONNECTIVE TISSUE

2. Supportive Tissues that include the cartilage and the bone.

Cartilage consists of a dense network of collagen fibers and elastic fibers firmly embedded in chondroitin sulfate, a gel-like component of the ground substance.

A. HYALINE CARTILAGE

B. FIBROCARTILAGE

C. ELASTIC CARTILAGE

Bone Tissue

Bone Tissue is composed of the mature bone cells called osteocytes. They are connected together by very fine tentacle-like cytoplasmic processes. Osteocytes lie within chambers in the matrix called lacunae. Radiating in all direction from the lacunae are minute canals called canaliculi. They connect the lacunae with each other. Canaliculi are filled with extracellular fluid and contain the slender cytoplasmic processes of the osteocytes.

s3. Vascular Tissue (Blood)Blood tissue (or simply blood) is a connective tissue with a liquid extracellular matrix and formed elements. The extracellular matrix is called blood plasma. The blood plasma is a pale yellow fluid that consists mostly of water with a wide variety of dissolved substances—nutrients, wastes, enzymes, plasma proteins, hormones, respiratory gases, and ions. Suspended in the blood plasma are formed elements—red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).Red blood cells transport oxygen to body cells and remove some carbon dioxide from them. White blood cells are involved in phagocytosis, immunity, and allergic reactions. Platelets (PLĀT-lets) participate in blood clotting.

Sources:Principles of Anatomy and Physiology, 13th Edition by Gerard J. Tortora and Bryan Derricksonhttp://www.zoology.ubc.ca/~biomania/tutorial/tuthisto/ct02.htmhttps://en.wikipedia.org/wiki/Connective_tissue_proper