Question

The reticular layer of the skin is thick and it strengthens the skin, provides elasticity and supports other components of the skin, such as hair follicles and sweat glands. The presence of which of the tissue helps them to carry out these functions?
A. Areolar connective tissue
B. Dense irregular connective tissue
C. Adipose tissue
D. Stratified squamous epithelium

Answer 1

Hint: Connective tissues provide great strength and flexibility to the muscles. Large number of connective tissues provides more strength for any action. Tissues present in the skin work together and perform unique and critical functions. Outer layer of skin has hair follicles and sweat glands. Various sensory and autonomic nerve fibers are present in it to communicate with the brain and provide response.

Complete answer:
The skin is the accessory structure that provides protection to the overall body. Deep inside the skin vascular bundles of tissues are present. It is made up of multiple layers of cells and tissues.
Areolar tissues are found surrounding the blood vessels, nerve bundles, muscles and organs. It connects the skin with the underlying muscle. Adipose tissue plays an important role in the regulation of whole body homeostasis and acts as an energy source. Stratified squamous epithelium consists of flattened epithelial cells which are arranged in a layer of the basal membrane.
In dense irregular connective tissue fibers are not arranged in parallel bundles. It consists of collagen fibers. The deepest layer of the dermis is the reticular layer. Due to the presence of high collagen fiber, dense irregular connective tissues provide great strength. It makes the skin more resistant to tearing and stretching forces from different directions.
From the above information we know that presence of dense irregular connective tissue helps the skin to carry out various functions.

Therefore, option B is the correct answer.

Note: In the digestive tract this type of dense irregular connective tissue layer helps to make sub mucosa layers. It helps the organs to resist excessive stretching and distension. Fibrous capsules of joints and lymph nodes are also formed by this. Adipose tissues include loose connective tissues. Adipose tissues help in the thermoregulation.