Changes

*'''Macrophages.''':They are ameoboid in shape and are wandering cells.They defend against micro-organisms and ingest them and hence are called '''phagocytes'''.

*'''Macrophages.''':They are ameoboid in shape and are wandering cells.They defend against micro-organisms and ingest them and hence are called '''phagocytes'''.

'''Adipose tissue'''

'''Adipose tissue'''<br>

Fat-storing adipose tissue is found below the skin and between internal organs. The cells of this tissue are filled with fat globules. The tissue stores fat which are used as and when the body requires.Storage of fat provides insulation against cold and protects the body like a shock absorber.<br>

Fat-storing adipose tissue is found below the skin and between internal organs. The cells of this tissue are filled with fat globules. The tissue stores fat which are used as and when the body requires.Storage of fat provides insulation against cold and protects the body like a shock absorber.<br>

Obesity in animals, including humans, is not dependent on the amount of body weight, but on the amount of body fat - specifically adipose tissue.

Obesity in animals, including humans, is not dependent on the amount of body weight, but on the amount of body fat - specifically adipose tissue.

'''Figure showing the location of adipose tissue below epidermis'''

'''Figure showing the location of adipose tissue below epidermis'''

'''Reticular tissue'''

'''Reticular tissue'''<br>

Reticular connective tissue is a type of connective tissue.It has a network of reticular fibers, made of type III collagen.Reticular connective tissue is found around the liver, the kidney, the spleen, and lymph nodes, as well as in bone marrow.Reticular connective tissue resembles areolar connective tissue, but the only fibers in its matrix are reticular fibers, which form a delicate network along which fibroblasts called reticular cells lie scattered. Although reticular fibers are widely distributed in the body, reticular tissue is limited to certain sites. It forms a labyrinth-like stroma or internal framework, that can support many free blood cells (large lymphocytes) in lymph nodes, the spleen, and red bone marrow.It forms the architectural framework of: liver, adipose tissue, bone marrow, spleen and basement membrane, to name a few.

Reticular connective tissue is a type of connective tissue.It has a network of reticular fibers, made of type III collagen.Reticular connective tissue is found around the liver, the kidney, the spleen, and lymph nodes, as well as in bone marrow.Reticular connective tissue resembles areolar connective tissue, but the only fibers in its matrix are reticular fibers, which form a delicate network along which fibroblasts called reticular cells lie scattered. Although reticular fibers are widely distributed in the body, reticular tissue is limited to certain sites. It forms a labyrinth-like stroma or internal framework, that can support many free blood cells (large lymphocytes) in lymph nodes, the spleen, and red bone marrow.It forms the architectural framework of: liver, adipose tissue, bone marrow, spleen and basement membrane, to name a few.

'''Reticular tissue'''

'''Reticular tissue'''

'''Tendons and ligaments'''

'''Tendons and ligaments'''<br>

A tendon is a fibrous connective tissue which attaches muscle to bone or cartilage.Tendons contain more of white fibres. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.They contain more of elastic fibres.

A tendon is a fibrous connective tissue which attaches muscle to bone or cartilage.Tendons contain more of white fibres. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.They contain more of elastic fibres.

'''Figure showing tendons and ligaments'''

'''Figure showing tendons and ligaments'''

'''Dense connective tissue'''

'''Dense connective tissue'''<br>

Connective tissue consisting of hard matrix called dense connective tissue.The cells are embedded in a dense matrix which is composed of calcium carbonate and calcium phosphate.<br>

Connective tissue consisting of hard matrix called dense connective tissue.The cells are embedded in a dense matrix which is composed of calcium carbonate and calcium phosphate.<br>

Dense connective tissue is of two types:'''cartilage and bone'''<br>

Dense connective tissue is of two types:'''cartilage and bone'''<br>

'''Cartilage'''

'''Cartilage'''<br>

Cartilage is a flexible connective tissue found in many areas in the bodies of humans and other animals, including the joints between bones, the rib cage, the ear, the nose, the bronchial tubes and the intervertebral discs. It is not as hard and rigid as bone but is stiffer and less flexible than muscle.<br>

Cartilage is a flexible connective tissue found in many areas in the bodies of humans and other animals, including the joints between bones, the rib cage, the ear, the nose, the bronchial tubes and the intervertebral discs. It is not as hard and rigid as bone but is stiffer and less flexible than muscle.<br>

Cartilage is composed of specialized cells called chondrocytes that produce a large amount of extracellular matrix composed of collagen fibers, abundant ground substance rich in proteoglycan, and elastin fibers. Cartilage is classified in three types, elastic cartilage, hyaline cartilage and fibrocartilage, which differ in the relative amounts of these three main components.Chondroblasts that get caught in the matrix are called chondrocytes. They lie in spaces called lacunae with up to eight chondrocytes per lacuna.<br>

Cartilage is composed of specialized cells called chondrocytes that produce a large amount of extracellular matrix composed of collagen fibers, abundant ground substance rich in proteoglycan, and elastin fibers. Cartilage is classified in three types, elastic cartilage, hyaline cartilage and fibrocartilage, which differ in the relative amounts of these three main components.Chondroblasts that get caught in the matrix are called chondrocytes. They lie in spaces called lacunae with up to eight chondrocytes per lacuna.<br>

Cartilage found in between the vertebrae in the vertebral column chiefly contains collagen fibres.They are called '''fibrous cartilage'''.They bring about bending and stretching movements.<br>

Cartilage found in between the vertebrae in the vertebral column chiefly contains collagen fibres.They are called '''fibrous cartilage'''.They bring about bending and stretching movements.<br>

'''Bone tissue'''

'''Bone tissue'''<br>

Bone tissue is a type of connective tissue that contains lots of calcium and phosphorous salts. About 25% of bone tissue is water, another 25% is made up of protein fibers like collagen. The other 50% of bone tissue is a mixture of mineral salts, primarily calcium and phosphorous.<br>

Bone tissue is a type of connective tissue that contains lots of calcium and phosphorous salts. About 25% of bone tissue is water, another 25% is made up of protein fibers like collagen. The other 50% of bone tissue is a mixture of mineral salts, primarily calcium and phosphorous.<br>

Bone tissue consists of cells embedded in a firm calcified matrix.The matrix chiefly consists of collagen fibres,protiens and inorganic salts like calcium phosphate,chlorides of potassium,sodium and magnesium.<br>

Bone tissue consists of cells embedded in a firm calcified matrix.The matrix chiefly consists of collagen fibres,protiens and inorganic salts like calcium phosphate,chlorides of potassium,sodium and magnesium.<br>