Chapter 20 Lymphatic System (quiz 2)

Question 1

3 Main Functions of the Lymphatic System

Answer 1

1. Drains excess interstitial fluid (fluid that surrounds cell)
2. Transports dietary lipids (fats)
3. Carries out immune response

Question 2

Once the interstitial fluid enters the Lymphatic System it is then called?

Answer 2

Lymph

Question 3

Lymph consists of?

Answer 3

• interstitial fluid leaked out of capillaries

- fats absorbed from digestive system (this makes it turn white-ish)

Question 4

What carries Lymph?

Answer 4

Lymphatic Vessels

Question 5

Flow of Lymph through Lymphatic Vessels

Answer 5

1. Lymphatic Capillaries lacteals (lymphatic capillaries in small intestine)
2. Lymphatic collecting vessels (has valves and lymph nodes)
3. Lymphatic trunks (has valves and lymph nodes)
4. Ducts
   a. right lymphatic duct
   b. thoracic duct

Question 6

What do valves do?

Answer 6

prevent backflow

Question 7

What do Lymph Nodes do?

Answer 7

WBCs filter the harmful things of out Lymph through the lymph nodes

Question 8

Flow of Lymph through Lymphatic Vessels; Ducts: Right Lymphatic Duct

Answer 8

drains lymph from specific parts of the body, any lymph coming from the upper right part of the body
- lymph enters at the junction between the right subclavian vein and the right internal jugular vein

Question 9

Flow of Lymph through Lymphatic Vessels; Ducts: Thoracic Duct

Answer 9

drains from the entire left side of body + everything below the diaphragm
-drop lymph at the junction between 2 veins: left subclavian vein and left internal jugular vein

Question 10

How many liters of blood leave the cardiovascular system?

Answer 10

3 liters

Question 11

“Pumps” of Lymphatic System

Answer 11

1. Muscular pump
2. Respiratory pump
   - They work with valves so the lymph keeps moving to the heart

Question 12

Muscular Pump

Answer 12

consists of skeletal muscle

-contracting muscle squeezing on lymph vessel (generate pressure + valves open up)

Question 13

Respiratory Pump

Answer 13

breathing, create pressure + move lymph through rest of lymphatic vessels

Question 14

Cells Present In Lymphatic Tissue

Answer 14

1. Lymphocytes- B cells, T cells
2. Macrophages- develop from monocytes, Phagocytes
3. Dendritic cells- phagocytes (engulf foreign cells (damaged cells))
4. Reticular cells- make reticular fibers, which are the housing from which immune cells work out of)

Question 15

What are most Lymphatic tissue + organs made of?

Answer 15

reticular connective tissue

Question 16

MALT

Answer 16

mucosa-associated lymphatic tissue

• lines open body cavity, where microorganisms can come in
• helps get rid of microorganisms
  1. Peyer’s patches- Ileum (last part of small intestine)
  2. Tonsils
• 1 pharyngeal (adenoids)
• 2 palatine (on the sides)
• 2 lingual (back of tongue)
  3. Appendix- MALT in large intestine
• MALT in respiratory, digestive, urinary, and reproductive tracts

Question 17

Different types of MALT

Answer 17

1. Peyer’s patches- Ileum (last part of small intestine)
2. Tonsils
   - 1 pharyngeal (adenoids)
   - 2 palatine (on the sides)
   - 2 lingual (back on tongue)
3. Appendix- MALT in large intestine