Lymphatic System

Question 1

What is the lymphatic system?

Answer 1

A secondary circulatory system that collects excess tissue fluid and returns it to the blood. (One way)

The lymphatic system plays a crucial role in maintaining fluid balance in the body.

Question 2

Is the lymphatic system a one-way or two-way system?

Answer 2

A one-way system that moves lymph towards the heart.

This unidirectional flow is essential for the proper functioning of the lymphatic system.

Question 3

How is lymph formed?

Answer 3

When tissue fluid is pushed out of capillaries; 90% returns to blood, 10% enters lymph vessels.

This process is vital for the removal of excess fluid from tissues.

Question 4

What does lymph contain?

Answer 4

White blood cells, proteins, and fats.

These components are crucial for immune response and nutrient transport.

Question 5

How does lymph move through lymph vessels?

Answer 5

By muscle contractions, body movements, and valves that prevent backflow.

The movement is similar to how blood is moved in veins.

Question 6

Where does lymph re-enter the bloodstream?

Answer 6

At the subclavian veins near the collarbones.

This is the point where lymph is returned to the circulatory system.

Question 7

What are lymph nodes?

Answer 7

Small structures that filter lymph and contain white blood cells to fight infection.

They are key components of the immune system.

Question 8

What is the function of lymph nodes?

Answer 8

To filter bacteria and pathogens, and store and mature white blood cells.

This function is critical for the body’s defense against infections.

Question 9

What are lacteals?

Answer 9

Specialized lymphatic capillaries in the small intestine that absorb fats.

Lacteals play an important role in nutrient absorption during digestion.

Question 10

What is the function of lacteals?

Answer 10

To absorb and transport fats from digestion into the lymphatic system.

This process is essential for the body’s fat metabolism.

Question 11

What are the three main functions of the lymphatic system?

Answer 11

1. Collect and return tissue fluid to blood.
2. Defend the body against infection.
3. Absorb and transport fats.

These functions highlight the importance of the lymphatic system in overall health.

Question 12

What type of White Blood Cells are found in lymph nodes

Answer 12

Lymphocytes