Lymphatic system

Question 1

Lymph passes through lymph vessels and?

Answer 1

Lymph nodes before returning to the blood.

Question 2

How is lymph formed?

Answer 2

Tissue fluid returns to the capillaries at their venous end, and the remainder diffuses through the more permeable walls of lymph capillaries.

Question 3

What does the lymphatic system consists of?

Answer 3

Lymph
Lymph vessels
Lymph nodes
Lymph organs: spleen, thymus
Diffused lymphoid tissue: tonsils
Bone marrow

Question 4

Functions of the lymphatic System

Answer 4

1) Tissue Drainage
2) Absorption in the small intestine
3) Immunity

Question 5

T:F The lymphatic system prevents tissue edema.

Answer 5

True

Question 6

What transports lipids absorbed form the small intestine into the lymphatic vessels and ultimately into the blood?

Answer 6

Lacteals

Question 7

Where are the Lacteals located?

Answer 7

In the villi

Question 8

What are the white blood cells which are involved in the the immune response of the animal?

Answer 8

Lymphocytes

Question 9

What organs are concerned with the production and maturation of lymphocytes?

Answer 9

Lymphatic Organs

Question 10

T:F Bone marrow is considered to be lymphatic tissue?

Answer 10

True

Since lymphocytes are produced there

Question 11

What is lymph?

Answer 11

A clear watery fluid, similar in composition to plasma, with the exception of plasma proteins, and identical in composition to interstitial fluid.

Question 12

Functions of lymph

Answer 12

Transport plasma proteins
Carries away large particles
Contains Lymphocytes

Question 13

What is lymph called after lacteals absorb fat giving lymph a milky appearance?

Answer 13

Chyle

Question 14

What are the small blind-ended terminal lymph vessels permeate almost every tissue of the body?

Answer 14

Lymph capillaries: initial lymphatics

Question 15

What is the difference between blood capillaries and lymph capillaries?

Answer 15

They are much more permeable to all intestinal fluid

Question 16

Where does the lymph capillaries empty into the venous system?

Answer 16

Near the point where the point where the blood enters the right atrium.

Question 17

What kind of muscle do the larger lymph vessels have?

Answer 17

Smooth muscle and elastic tissue

Question 18

What ensures that lymph flows only one way?

Answer 18

Cup-shaped valves called semilunar valves

Question 19

T:F The Lymphatic system has a pump that is involved in the movement of lymph.

Answer 19

False
There is no pump like the heart, the muscle layers in the walls of the lymph vessels has an intrinsic ability to contract rhythmically

Question 20

What are the lymph nodes?

Answer 20

Oval or bean shaped organs that lie, often in groups, along the length of lymph vessels

Question 21

What is the concave surface of the lymph node that an artery and vein enters and the efferent lymph vessel leaves?

Answer 21

Hilum

Question 22

Functions of the lymph nodes?

Answer 22

Filtering and phagocytosis

Proliferation of lymphocytes

Question 23

Functions of the spleen

Answer 23

Phagocytosis
Storage of blood and platelets
Immune response

Question 24

T:F The thymus gland increases function as the animal ages

Answer 24

False

It is found in young animals and decreases in size and function as animal ages

Question 25

What are the main groups of Mucosa-associated lymphoid tissue?

Answer 25

Tonsils and Peyer’s Patches