4. Give a brief account of cartilage.
5. Describe structure and functions of bone.
6. Describe the composition of human blood.
Answers
Answer:
Cartilage gives shape, support, and structure to other body tissues. It also helps to cushion joints. Cartilage also smoothens the bone surfaces at the joints. It is essential for the development and growth of long bones.
Answer:
1•Cartilage (cartilaginous tissue) is a resilient and smooth elastic tissue, rubber-like padding that covers and protects the ends of long bones at the joints and nerves, and is a structural component of the rib cage, the ear, the nose, the bronchial tubes, the intervertebral discs, and many other body components
2• Bone is a mineralized connective tissue that exhibits four types of cells: osteoblasts, bone lining cells, osteocytes, and osteoclasts [1, 2]. Bone exerts important functions in the body, such as locomotion, support and protection of soft tissues, calcium and phosphate storage, and harboring of bone marrow
3• It has four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues. ... carrying cells and antibodies that fight infection.