Lymphatic

Question 0

What are the functions of the lymphatic system?

Answer 0

• return excess interstitial (tissue) fluid to blood
• returns plasma proteins to blood
• body defense
• transports fat-soluble vitamins/fatty acids from intestines (to blood) to liver

Question 1

Describe a lymphatic capillary

Answer 1

• one layer thick
• closed-ended tubes
• porous
• lacteal
• they just kind of “start”

Question 2

Describe a lymphatic vessel

Answer 2

• similar to veins
• thin-walled
• valves

Question 3

What do lymph trunks do?

Answer 3

Transport fluid from vessels to trunks

Question 4

What do Collecting Ducts do?

Answer 4

-empty into venous circulation (return fluid back)

Question 5

What is the order of fluid flow in the lymphatic system?

Answer 5

1) Lymphatic Capillary
2) Afferent lymphatic vessel
3) Lymph node
4) Efferent lymphatic vessel
5) lymphatic trunk
6) collecting duct
7) subclavian vein

Question 6

How does the Right Lymphatic Collecting Duct work?

Answer 6

• Drains right head, neck, arm, thorax

- Empties into the right subclavian vein

Question 7

What are two Collecting Ducts?

Answer 7

• Right Lymphatic

- Thoracic Duct

Question 9

What part of the body empties into the thoracic duct?

Answer 9

-Drains rest of body

Question 10

What is a Lymph?

Answer 10

-Tissue fluid enclosed within lymphatic vessel

Question 11

What is the color of lymph?

Answer 11

Normally clear watery fluid but may appear “milky” (chyle) (fat digestion)

Question 12

What makes up lymph?

Answer 12

-Contains water, proteins, immune substances, nutrients, etc

Question 13

What must exist for lymph to flow

Answer 13

A pressure gradient

Question 14

What creates pressure gradients?

Answer 14

1. Skeletal muscle contraction 2. breathing movements 3. contractility of vessels

Question 15

What is edema/lymphedema

Answer 15

Build up of fluid

Question 16

What are the lymphatic organs? (4)

Answer 16

1. Lymph nodes 2. Thymus 3. Spleen 4. Bone marrow

Question 17

Are lymph nodes found in groups?

Answer 17

Yes

Question 18

Name the superficial lymph groups. (3)

Answer 18

1. Cervical 2. Axillary 3. Inguinal

Question 19

Name the deep lymph groups. (3)

Answer 19

1. Pelvic 2. Abdominal 3. Thoracic

Question 20

Are lymph nodes lacking in CNS?

Answer 20

Yes

Question 21

Name two specialized lymph nodes.

Answer 21

1. Peyer’s patches 2. Tonsils

Question 22

Where is the thymus located?

Answer 22

In the mediastinum

Question 23

Which lymph organ atrophies with age?

Answer 23

Thymus

Question 24

Where does T cell development occur?

Answer 24

Thymus

Question 25

What does the thymus secrete?

Answer 25

Thymosins

Question 26

Where is the spleen located?

Answer 26

Upper left abdomen

Question 27

Which organ contains blood sinuses?

Answer 27

Spleen

Question 28

What do the lobules in the spleen consist of?

Answer 28

Pulp (red and white)

Question 29

Lymphocytes are primarily where?

Answer 29

White pulp

Question 30

What is the function of the spleen? (3)

Answer 30

1. Blood reservoir 2. Filters blood 3. Body Defense

Question 31

What vitamins are fat soluble?

Answer 31

A, D, E, K

Question 32

What does the thoracic collecting duct originate at?

Answer 32

-Originates as “cisterna chyli”

Question 33

What does the thoracic collecting duct receive from the liver?

Answer 33

-Receives chyle from intestines

Question 34

What vein does the thoracic collecting duct empty into?

Answer 34

Left subclavian vein (is returned by the left subclavian vein)