Supportive connective tissues: It is a connective tissue in which matrix is rigid and the living cells occur in fluid filled spaces called lacunae. 

(a) Cartilage: 

1. Cartilage is a non-porous, firm but flexible supportive tissue. 
2. It has solid matrix which is composed of chondrin. Secreted by the chondrocytes. Chondrocytes lie in the matrix singly or in groups of two or four surrounded by fluid filled space called lacunae. 
3. Cartilage is present in the tip of nose, outer ear, joints in the vertebral column, limbs and hands in adults. 
4. It provides support and flexibility to various parts of the body. 

(b) Bones: 

1. Bone is a strong, rigid and non- flexible tissue. Bone is the hardest tissue of the body. 
2. It consists of solid matrix with fluid filled lacunae having osteocytes or bone cells. 
3. Matrix is composed of collagenous protein complex called ossein and mineral matter like salts of calcium, phosphorus, and magnesium. 
4. The hardness of bone is due to deposition of mineral matter (calcium salts and collagen fibres). 
5. The matrix in mammalian bone like in thigh bone is arranged in concentric rings or lamellae around nutrient filled haversian canals. 
6. The osteocytes lie on the lamellae and give out branched processes which join with those of the adjoining cells. 
7. The soft connective tissue present in the bone cavity is known as bone marrow. Sheath of bone is called peri steum. A layer of osteoblasts or bone forming cells lie below it.

Location : Bones are found all around the body. It forms the supportive framework of the body. 

Fluid connective tissue : It consists of cells and matrix without fibers. Plasma is the extra cellular fluid of matrix, the ground substance. Blood and Lymph are two types of fluid connective tissue.