Final answer:
Dense irregular connective tissue can be found in the dermis of the skin, fibrous capsules of organs, submucosa of the gastrointestinal tract, and arterial walls.
Step-by-step explanation:
Dense irregular connective tissue is a type of fibrous connective tissue that contains a high amount of collagen fibers arranged in a disordered or irregular pattern. This tissue structure provides strength and resistance to stress applied from multiple directions. Four areas in the body where dense irregular connective tissue can be found are:
- The dermis of the skin, which provides strength, flexibility, and elasticity to the skin.
- The fibrous capsules around organs, such as the kidneys and liver, that protect and provide structural support to these organs.
- The submucosa layer in the gastrointestinal tract, which helps withstand the stresses of peristalsis.
- Wall of arteries (arterial walls), where dense irregular elastic tissues provide the strength to endure the pressure of pulsating blood, and allow the arteries to regain their shape after stretching.