Lymphatic System

Question 1

Name five structures of the lymphatic structures of the lymphatic system ?

Answer 1

1) lymphatic vessels
2) red bone marrow
3) thymus
4) spleen
5) lymph nodes

Question 2

What are the 3 main functions for the lymphatic system ?

Answer 2

1) drain tissue spaced o excess interstitial fluid
2) transports dietary fats and fat-soluble vitamins from the gastrointestinal tract through the blood
3) protects boy from cancer cells and micro organisms via immune response

Question 3

What is interstitial fluid ?

Answer 3

Is the fluid found around tissue cells

Question 4

What happens when there’s excessive interstitial fluid ?

Answer 4

The extra fluid around the tissues ( interstitial fluid ) enters the lymphatic capillaries

When this fluid starts to circulate through the lymphatic vessels it’s called a lymph .

Question 5

Define a lymph ?

Answer 5

The intestinal fluid that circulate through the lymphatic vessels .

Question 6

Name three things about lymphatic capillaries

Answer 6

1) highly permeable - capillaries are found b/w tissue cells
2) lymphatic capillaries are closed in one end
3) cells are overlapped and open door when pressure of interstitial fluid is high and once it enters , the end closes

Question 7

What is the flow of lymph ? 5 travel points

Answer 7

Lymp flows

1st through the lymphatic capillaries

2nd then flows through the larger vessels

3rd then the lymphatic ducts

4th down to the right or left subclavian vein then finally

5) down the vena cava

Question 8

How does lymph flow occur ?

Answer 8

Lymph flow occurs through the skeletal muscle during contractions and respiratory movement

Question 9

What is the function of right lymphatic duct ?

Answer 9

Drains right arm

Chest

Torso

Lower limbs

Question 10

What is the function of the thoracic duct ?

Answer 10

Drains left arm chest torso and Lower limbs

Question 11

Where is the thymus located ? And its function ?

Answer 11

The thymus is located in the mediastinum and medial to the kings

Thymus’s function is to produce at T cells ( t lymphocytes )

Question 12

Decribe 4 things about lymph modes and its function

Answer 12

Lymph nodes are :

• oval structure located along the lymphatic vessels
• scattered throughout the body
• rich in T - cells and B cells

Function : immunity , and filters and removes foreign substances

Question 13

What is the spleen ?

Answer 13

Spleen is the largest lymphatic tissue in the body

Located between the stomach and diaphragm

Question 14

What are the 2 functions of the spleen

Answer 14

1( blood reservoir

2) degradation of aged and damaged red blood cells and platelets
3) immunity - consists of macrophages which engulf bacteria and lymphocytes