Lymphatic System: Questions

Question 1

Water moves from the blood capillary into the interstitial space (tissue space) due to:

Answer 1

blood pressure (called hydrostatic pressure).

Question 2

10 - 15% of the water moved out into the interstitial space (tissue space) is absorbed by the:

Answer 2

Lymphatic capillaries

Question 3

What happens to the 85-90% of the water pushed into the interstitial space (tissue space)?

Answer 3

Reabsorbed in the blood capillaries by osmosis.

Question 4

Fluid being returned to the blood system is checked by the lymphatic system for ___________________.

Answer 4

Toxins, microbes and other threats.

Question 5

The lymphatic system not only checks the lymph but also guards openings of the:

Answer 5

Digestive and Respiratory tracts. Example: the tonsils.

Question 6

Special lymphatic capillaries located in the small intestine are called:

Answer 6

Lacteals

Question 7

What do the lacteals transport from the digestive system?

Answer 7

Dietary lipids

Question 8

Lymph capillaries are found in:

Answer 8

Most of the body’s tissues near blood capillaries.

Question 9

What are the two names of the lymphatic collecting ducts?

Answer 9

• Right lymphatic duct
• Thoracic duct

Question 10

What fluids drain into the right lymphatic duct?

Answer 10

Fluids from the:
• Right side of head
• Right side of neck
• Right side of chest
• Right upper limb

Question 11

What fluids drain into the thoracic duct?

Answer 11

Fluids from the:
• Left side of head
• Left side of chest
• Left upper limb
• Rest of body

Question 12

Both the right lymphatic and thoracic duct empty into the:

Answer 12

subclavian veins (under the bones called the clavicles).

Question 13

As lymph moves through the lymph system, what functions to filter and cleanse the lymph?

Answer 13

Lymph nodes

Question 14

Macrophages are found within the lymph nodes. What is the function of macrophages?

Answer 14

To “eat” phagocytize the pathogens and cellular debris of lymph.

Question 15

Lymphocytes are found within the lymph nodes. What is the function of lymphocytes?

Answer 15

Detect foreign pathogens and activate the immune system.

Question 16

Axillary lymph nodes would be found in the __________.

Answer 16

Armpit

Question 17

Mediastinal lymph nodes would be found in the _________.

Answer 17

Thoracic cavity

Question 18

Inguinal lymph nodes would be found in the ___________.

Answer 18

Groin

Question 19

Cervical lymph nodes would be found in the ____________.

Answer 19

Neck

Question 20

We learned the term “afferent” in the nervous system. What does afferent mean?

Answer 20

Traveling towards something.

Question 21

A lymph vessel that brings lymph towards a lymph node is called an __________________.

Answer 21

Afferent lymph vessel

Question 22

We learned the term “efferent” in the nervous system. What does efferent mean?

Answer 22

Traveling away from something

Question 23

What would a lymph vessel that transports lymph away from the lymph node be called?

Answer 23

Efferent lymph vessel

Question 24

Arrange the following in order of flow:
- channels through sinuses of lymph node
- afferent lymph vessels
- efferent lymph vessels

Answer 24

1. afferent lymph vessels bring lymph into lymph node.
2. lymph travels in channels through sinuses in the node.
3. cleansed lymph leaves the lymph node via efferent lymph vessels.

Question 25

Tonsils are patches of _______________ located at the entrance of the pharynx.

Answer 25

Lymphatic tissue

Question 26

What is the function of the tonsils?

Answer 26

Guard against inhaled and ingested pathogens.

Question 27

The lingual tonsils are located at the:

Answer 27

root of the tongue.

Question 28

The palatine tonsils are located in the:

Answer 28

posterolateral (back and towards the sides) of the oral cavity. These are the tonsils that the physician sees when we open our mouth and say Aaagh!

Question 29

The pharyngeal tonsils are located in the:

Answer 29

nasopharynx (the upper part of the pharynx).

Question 30

What organ has a similar function to the lymph nodes only instead of filtering and cleaning lymph, this organ filters blood, gets rid of old damaged blood cells and destroys bacteria?

Answer 30

The spleen.

Question 31

What quadrant would one find the spleen?

Answer 31

Upper left quadrant

Question 32

The spleen contains many macrophages and lymphocytes. What are their functions?

Answer 32

Monitor and destroy pathogens. Recall lymphocytes check for foreign invaders and macrophages “eat” (phagocytize) bacteria and cell debris.

Question 33

The lymphatic System is a network of vessels, lymphatic tissues and organs and a fluid called

Answer 33

Lymph