Lab 4 (Chapter 21)

Question 1

What lymph node is located in the armpit?

Answer 1

Axillary

Question 2

What lymph node is located in the area between the upper thigh and groin?

Answer 2

Inguinal nodes

Question 3

What lymph node is located in the neck?

Answer 3

Cervical node

Question 4

What node is located below the sides of the jaw?

Answer 4

Submandibular node

Question 5

What organ is tucked right behind the kidney?

Answer 5

Spleen

Question 6

What is located right below the right axillary lymph nodes?

Answer 6

Right lymphatic duct

Question 7

What could be described as a medial white line that runs down the abdomen?

Answer 7

Thoracic duct

Question 8

What is the bump on the thoracic duct called?

Answer 8

Cisterna chyli

Question 9

What is the small worm-looking organ located near the lower right portion of the abdomen?

Answer 9

Appendix

Question 10

Collecting vessels are what color on most models? What about lymph nodes?

Answer 10

Collecting vessels are usually white, and lymph nodes are typically green or yellow

Question 11

What are the 4 major functions of the lymphatic system?

Answer 11

1) Drains off excess interstitial fluid, “cleans” it with the lymph nodes, and returns it to blood
2) Returns any leaked plasma proteins back to blood
3) Transports dietary fats
4) Immune responses

Question 12

Lymph is chemically identical to what type of fluid?

Answer 12

Interstitial fluid (aka tissue fluid)

Question 13

True or false: there is a one-way flow of lymph until the lymph is returned to the blood

Answer 13

True

Question 14

What is the order of lymph through the lymphatic system?

Answer 14

1) Lymphatic capillaries
2) Lymphatic collecting vessels
3) Lymphatic trunks
4) Right lymphatic duct OR the thoracic duct
5) Right subclavian vein OR left subclavian vein

Question 15

The lymphatic trunks originate from what two ducts?

Answer 15

1) Right lymphatic duct
2) Thoracic duct

Question 16

What does the right lymphatic duct drain?

Answer 16

Drains the upper right side of the body (right head, right neck, right thorax, right arm)

Question 17

What blood vessel does the right lymphatic duct drain into?

Answer 17

Right subclavian vein

Question 18

What blood vessel does the thoracic duct drain into?

Answer 18

Left subclavian vein

Question 19

What does the thoracic duct drain?

Answer 19

The rest of the body (upper left portion of body, abdomen, both legs)

Question 20

The beginning of the thoracic duct starts where?

Answer 20

In the abdomen

Question 21

Describe the cisterna chyli

Answer 21

It’s the beginning of the thoracic duct, and is an enlarged sac that several trunks empty into

Question 22

What is the beginning of the thoracic duct called?

Answer 22

Cisterna chyli

Question 23

The lymphatic vessels are most similar to what type of blood vessel? Why?

Answer 23

Veins, because they both have:
1) Unidirectional valves
2) Thin walls

Question 24

What are the two primary lymphoid organs?

Answer 24

1) Red bone marrow
2) Thymus gland

Question 25

Describe the location of the thymus gland

Answer 25

In the superior mediastinum between the sternum and aortic arch

Question 26

What are the two types of lymphoid organs?

Answer 26

Primary and secondary

Question 27

Give examples of secondary lymphoid organs

Answer 27

1) Spleen
2) Appendix
3) Tonsils
4) Lymph nodes

Question 28

Lymph nodes are an example of what?

Answer 28

A secondary lymphoid organ

Question 29

What is the purpose of the lymph nodes?

Answer 29

To filter lymph

Question 30

Where are the tonsils located?

Answer 30

The pharynx

Question 31

What are the 4 types of tonsils?

Answer 31

1) Tubal
2) Pharyngeal
3) Lingual
4) Palentine

Question 32

Describe the location of the tubal tonsils

Answer 32

A pair of tonsils found in the nasopharynx surrounding the opening to the auditory tubes

Question 33

What are the adenoids formally named?

Answer 33

The pharyngeal tonsils

Question 34

Describe the location of the lingual tonsils

Answer 34

Multiple tonsils found in the oropharynx at the base of the tongue (almost looks attached to the tongue on the models)

Question 35

Describe the location of the palatine tonsils

Answer 35

A pair of tonsils found in the oropharynx just posterior to the oral cavity

Question 36

What looks like an orange spot behind the tongue on the models in the lab?

Answer 36

The palatine tonsils

Question 37

What tonsils are found in the oropharynx?

Answer 37

Lingual and palentine