Question

Describe the functions of the following components of the transport system.
a. Blood
b. Lymph

Answer 1

Blood is a body fluid in humans that helps the body to deliver necessary substances such as nutrients and oxygen to the cell and also to transport metabolic waste products away from the cells. Lymph is a fluid that flows continuously through the lymphatic system composing of lymph vessels and lymph nodes.

Complete answer:
There are different functions for both blood and lymph in the human body.
The functions of blood include:
Blood is a fluid connective tissue composed of 55 percent plasma and 45 percent formed elements consisting of RBC, WBC and platelets and it is the only fluid tissue in the body.
Blood provides the cell with oxygen and helps in removing the carbon dioxide. The blood absorbs oxygen from the lungs and transport It throughout the cells and removes carbon dioxide from these cells and takes it back to the lungs.
Blood helps in the transport of nutrients and hormones into the cells. It plays a larger role in digestion and endocrine system functions. Digested nutrients are absorbed into the bloodstream through capillaries in the villi and transported to all cells.
Blood also regulates the body temperature and platelets clot blood at sites of injury.
The function of lymph includes:
- It keeps the body cells moist and does not allow it to get dried.
- It also plays the role in transporting blood and taking away metabolic waste.
- It transports antibodies and lymphocytes to the blood.
- It helps in the maintenance of tissue fluid composition and prevents the invasion of microbes into our bodies.

Note: In animals and humans the extracellular fluid divides into interstitial fluids and plasma.
Both plasma and interstitial fluid are the same due to the continuous exchange of small solute water and ions across the capillary walls of the issues.