Lymphatic System

Question 1

What is the function of the lymphatic system? (2)

Answer 1

• Provides defense against pathogens.

- Recycles fluid and other nutrients, which are lost from the cardiovascular system, into the venous system for reuse..

Question 2

The lymphatic system is composed of: (4)

Answer 2

• Lymph
• Lymphatic vessels (lymphatics)
• Lympoid tissues and organs
• Red bone marrow

Question 3

Lymphatic vessels found in most areas of the body except: (4)

Answer 3

• CNS
• Splenic pulp
• Bone marrow
• Cornea

Question 4

Function of Lymph node?

Answer 4

Filter lymph

Question 5

Pale yellow fluid which is similar in composition to interstitial fluid.

Answer 5

Lymph

Question 6

Transport Lymph.

Answer 6

Lymphatic vessels

Question 7

Site of lymphocyte production.

Answer 7

Red bone marrow

Question 8

Originate as Microscopic lymphatic capillaries in the space between cells are are found in most parts of the body.

Answer 8

Lymphatic vessels

Question 9

Unite to form larger structures called lymphatic vessels.

Answer 9

Lymphatic capillaries

Question 10

Are structurally adapted to ensure the return of proteins, which leak out of blood capillaries to the cardiovascular system.

Answer 10

Lymphatic capillaries

Question 11

Have a unique structure that permits interstitial fluid to flow into them, but not out of them.

Answer 11

Lymphatic capillaries

Question 12

Are lymphatic capillaries larger or smaller than blood capillaries?

Answer 12

Slightly larger.

Question 13

End blindly, unlike blood capillaries which are continuous with arterioles and venules.

Answer 13

Lymphatic capillaries

Question 14

Resemble veins in structure, but have a thinner wall and more valves than veins.

Answer 14

Lymphatic vessels

Question 15

Contain lymph nodes at various intervals along their length.

Answer 15

Lymphatic vessels

Question 16

Deliver lymph into two large vessels called lymphatic ducts.

Answer 16

Lymphatic vessels

Question 17

Drain into subclavian veins

Answer 17

Lymphatic ducts

Question 18

Sac like chamber at the inferior end o the thoracic duct.

Answer 18

Cisterna Chyli

Question 19

Is a specialized form of loose connective tissue that contains lymphocytes.

Answer 19

Lymphoid tissue

Question 20

Large masses of lympoid tissue that are not surrounded by a capsule.

Answer 20

Lymphoid nodules (lymphatic follicles)

Question 21

Lympoid nodules that are scattered throughout the mucous membranes.

Answer 21

(MALT) Mucosa-associated lympoid tissue

Question 22

Cluster of lympoid nodules in the lining of the small intestines.

Answer 22

Aggregated lympoid nodules (Peyer’s Patches)

Question 23

Large lympoid nodules in the pharynx.

Answer 23

Tonsils

Question 24

How many tonsils do we have?

Answer 24

5

Question 25

Types of Tonsils?

Answer 25

- Palatine tonsils (left and right) - Lingual tonsils (left and right) - Pharyngeal tonsil (adenoid)

Question 26

Formed by the 5 tonsils

Answer 26

Waldeyers ring

Question 27

Are srrounded by a capsule that is composed of dense connective tissue.

Answer 27

Lymphoid organs

Question 28

Small lymphoid organs located along lymphatic vessels.

Answer 28

Lymph Nodes

Question 29

Outer cover of lymph node.

Answer 29

Capsule

Question 30

Bundles of collagen fibers that extend from capsule to interior of the lymph node to divide the lymph node into compartments.

Answer 30

Trabeculae

Question 31

Core of lymph node

Answer 31

Medulla

Question 32

Shallow indentation where blood vessels and nerve attach to the lymph node.

Answer 32

Hilum (Hilus)

Question 33

Carry lymph toward the lymph node.

Answer 33

Afferent lymphatic vessels

Question 34

Carry lymph away from the lymph nodes.

Answer 34

Efferent lymphatic vessels

Question 35

Located in mediastinum, pink in color, and has a cortex and medulla.

Answer 35

Thymus gland

Question 36

Largest collection of lymphoid tissue. Filters blood.

Answer 36

Spleen

Question 37

Located on left side towards back, behind stomach.

Answer 37

Spleen

Question 38

Smooth surface that conforms to the shape of the diaphragm.

Answer 38

Diaphragmatic surface

Question 39

Surface that conforms to the shape of the stomach.

Answer 39

Visceral surface

Question 40

Area on the visceral surface where blood and lymphatic vessels connect to the spleen.

Answer 40

Hilum

Question 41

Transport O2, nutrients, and wastes to and from spleen.

Answer 41

Splenic artery and vein

Question 42

Has high quantities of RBCs in spleen.

Answer 42

Red pulp

Question 43

Has high quantities of lymphocytes in spleen.

Answer 43

White pulp