Question

Tendon and ligament are examples of

A. Dense regular connective tissue.

B. Dense irregular connective tissue.

C. Loose connective tissue.

D. Specialised connective tissue.

Answer 1

Connective tissues are the most abundant tissues present in the human body. They have three main components: cells, fibers, and ground substance. They function in binding and protection of the body. A tendon is defined as a tough band of tissue that helps to connect muscle to bone and it is capable of resisting tension. Tendons and ligaments are similar as they both are made of collagen. Ligaments help to connect one bone to another, whereas tendons connect muscle to bone.

Complete answer:

The major functions of connective tissues include binding and supporting, protection, storing the reserve fuel, transport of substances within the body. The structure of connective tissue is made up of ground substance, fibers, and cells. These connective tissues are divided into four categories:

• Connective proper

• Cartilage

• Bone

• Blood

The connective proper has two subclasses, loose and dense. Loose connective tissues are further divided into areolar, adipose, and reticular. Dense connective tissues are further divided into dense irregular, dense regular and dense elastic.

Keep in mind that- tendons and ligament are the examples of dense regular connective tissue, which consists of three components-

1. fibre producing cells or also called fibroblast cells. Fibroblast cells help to remake and produce collagen fibres of the tissue,

2. fibres, and

3. an extracellular fluid matrix.

Fibres are divided into two types: collagen fibres and elastin fibres. Collagen fibres provide strength and also help to replace dead skin cells, and on the other hand the elastin fibres give elasticity and help the skin for stretching or contracting.

Remember, the extracellular fluid matrix is defined as a jelly-like material which is made of water, carbohydrate, and protein molecules which together makes a ground substance which gives structural and biochemical strength to the surrounding cells.

Dense regular connective tissues consist of closely packed bundles of collagen fibers which run in the same direction. These collagen fibers are wavy and can stretch a little bit. Due to the tensile strength of collagen, the tissue forms tendons, aponeurosis, and ligaments. This tissue also forms the fascia. It is a fibrous membrane that wraps around the muscles, blood vessels, and the nerves.

This kind of tissue is seen in ligaments (that joins bone to bone at joints) and tendons (connects bones or cartilage and muscle).

Therefore, the correct answer is option A.

Note:
So, to recap, A tendon (or also called as sinew) is a tough band of fibrous connective tissue which helps to make connection of muscle to bone, and is made to withstand tension. Tendons are the same as ligaments but except for the fact that- ligaments join one bone to another bone. Tendons as well as muscles work together and only exerts a pulling force. Blood is a specialized form of connective tissue. Cartilage is a flexible connective tissue found in many parts of the body including joints, rib cage, ear, nose, elbow, knee, and ankle. The adipose tissue is the subcutaneous fat present beneath the skin.