The Lymphatic System

Question 1

______ vessels carry interstitial fluid and return it to the blood.

Answer 1

Lymphatic

Question 2

_____ transport absorbed fats to the circulation.

Answer 2

Lacteals

Question 3

Put the following in the order of a lymphatic pathway:
collecting duct
lymph node
subclavian vein
afferent lymphatic vessel
lymphatic capillary
efferent lymphatic vessel
lymphatic trunk

Answer 3

lymphatic capillary
afferent lymphatic vessel
lymph node
efferent lymphatic vessel
lymphatic trunk
collecting duct
subclavian vein

Question 4

Lymphatic capillaries have walls made up of __ layer of ____ cells.

Answer 4

1

epithelial

Question 5

Interstitial fluid within a lymphatic capillary is called ___

Answer 5

lymph

Question 6

Lymphatic vessels have ____ to prevent backflow of blood.

Answer 6

valves

Question 7

______ ______ pass through lymph nodes and merge to form lymphatic trunks.

Answer 7

Lymphatic vessels

Question 8

______ ______ empty into collecting ducts.

Answer 8

Lymphatic trunks

Question 9

There are 2 collecting ducts - name them

Answer 9

right lymphatic duct

thoracic duct

Question 10

What does the right lymphatic duct drain and what does it empty into?

Answer 10

Drains - right side of head and neck, right arm and right thorax
empties into - right subclavian vein

Question 11

What does the thoracic duct drain and what does it empty into?

Answer 11

much larger …
Drains - rest of the body
empties into - left subclavian vein

Question 12

How does tissue fluid get forced into lymphatic capillaries?

Answer 12

By hydrostatic pressure

Question 13

What are the functions of lymph? (2)

Answer 13

Returns small substances back to the blood

Transports foreign particles to the lymph nodes for distruction.

Question 14

Lymph moves through lymphatic vessels by… (3)

Answer 14

skeletal muscle contraction
pressure changes due to breathing
contraction of smooth muscle in vessel walls

Question 15

Lymphatic tissue contains ____ , _____ and other cells.

Answer 15

lymphocytes

macrophages

Question 16

What are the 3 encapsulated lymphatic organs?

Answer 16

Lymph nodes
Thymus gland
Spleen

Question 17

Lymph nodes are located along _____ _____

Answer 17

lymphatic vessels

Question 18

What is the function of lymph nodes?

Answer 18

Lymphocytes and macrophages within lymph nodes filter the lymph as it flows through and remove pathogens.

Question 19

Lymph nodes are centres of _____ production

Answer 19

Lymphocyte

Question 20

Lymph enters lymph nodes through _____ lymphatic vessels and leaves through _____ lymphatic vessels

Answer 20

afferent

efferent

Question 21

Blood vessels, nerves and lymphatic vessels enter and exit through the ____ of the lymph node

Answer 21

hilum

Question 22

Lymph nodes are not found in the _____ nervous system

Answer 22

central

Question 23

The thymus gland is located behind the _____

Answer 23

Sternum

Question 24

The thymus gland is divided into ______ containing ______.

Answer 24

Lobules

lymphocytes

Question 25

Some lymphocytes produced in the thymus gland mature into T lymphocytes dye to the hormone ______

Answer 25

Thymosis

Question 26

The _____ is the largest lymphatic organ

Answer 26

spleen

Question 27

The spleen is located in …

Answer 27

the upper left abdominal cavity

Question 28

The spleen is composed of ____ ____ and ____ _____

Answer 28

white pulp

red pulp

Question 29

The white pulp of the spleen contains _____

Answer 29

lymphocytes

Question 30

The red pulp of the spleen contains ____ , _____ and ______

Answer 30

RBCs
macrophages
lymphocytes

Question 31

What is the function of the spleen?

Answer 31

Filters blood, removes damaged blood cells and bacteria