Match the structures given in Column I with the tissue given in Column II in which they are present. Select the correct answer using the codes given below : Column I Column II 1. Chondrocyte (a) Nervous tissue 2. Fat cells (b) Voluntary muscle fibre 3. Myofibril (c) Cartilage 4. Axon (d) Bone 5. Periosteum (e) Adipose tissue

• The cartilage is made up of cells called chondrocytes.
• They are essential for the formation of the cartilage matrix and the maintenance of the extracellular matrix.
• Proteoglycans and collagen make up the majority of them.
• Chondrocytes are surrounded by collagenous fibres and release chemicals that help cartilage become stronger and more flexible.
• The structure of chondrocytes in the cartilage matrix is round or polygonal, with the exception of tissue borders, where chondrocytes might be discoid or flattened at the articular surfaces of joints.

Adipose Tissue(underneath the skin)

• Adipocytes, also known as lipocytes or fat cells, are the cells that make up adipose tissue and are responsible for storing energy in the form of fat.
• Adipocytes can differentiate into osteoblasts, myocytes, and other cell types in cell culture.
• Body fat is a term used to describe adipose tissue.
• It can be found in every part of the body.
• It's found beneath the skin (subcutaneous fat), surrounding internal organs (visceral fat), between muscles, in bone marrow, and in breast tissue.

• A myofibril (also called a muscle fibril or sarcostyle) is a muscle cell's basic rod-like organelle.
• Muscles are made up of tubular cells called myocytes, which in striated muscle are known as muscle fibres, and these cells contain multiple chains of myofibrils.

• The part of a nerve cell (neuron) that transports nerve impulses away from the cell body is known as an axon.
• A neuron has one axon that connects it to other neurons, muscle cells, and gland cells.
• Some axons can be quite long, extending from the spinal cord to a toe, for example.

• The periosteum is a membranous substance that surrounds your bone surfaces.
• The periosteum is made up of two different layers and is essential for both bone repair and growth.