Question

Match the following and choose the correct combination from the options given

• A. a - 1, b - 2, c - 3, d - 4.
• B. a - 4, b - 3, c - 2, d - 1.
• C. a -1 , b - 3, c - 2 , d - 4.
• D. a - 4, b - 2, c - 3 . d - 1.

Answer 1

The Correct Option is B

Answer (b) a - 4, b - 3, c - 2, d - 1.

Answer 2

Ans. Cartilages are non-vascular connective tissue that supports the other tissues throughout the body. It provides protection and supports the structure of the body. It is primarily made up of water and exists in the nose, airway, joints, ear, and intervertebral disc of the spine. Chondrocytes are specialized cells that produce a mixture of collagen, proteoglycans, and other non-collagen proteins that make up the cartilage.

Cartilage is referred to as the connective tissue that makes up the skeleton of the mammalian embryos before the formation of the bone begins, and persisting in the part of the human skeleton in adulthood. It is the only component of the skeleton that is found in some of the certain primitive vertebrates, including sharks and lampreys. Cartilage is formed of a dense network of collagen fibres embedded in a firm gelatinous ground substance.

• Cartilages provide support to the embryo and act as a cushion to the bone
• Cartilages promote rapid growth and development of the musculoskeletal system
• Cartilages initiate smooth facial movement and provide support to the structure in the external ear, septum, and tip of the nose. 
• Cartilages prevent damage and abrasion in the places where two bones meet each other, thus acting as a shock absorber. 
• The flexibility of the joints is because of cartilage.
• The trachea is surrounded by rings of cartilages to prevent damage and collapse
• The upward and outward movement of the rib cage during inhalation is due to the cartilages present at the end of the rib 
• Cartilages help in the bone repair in embryo