Chapter 20 Quiz - Lymphatic System

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1

Both lymph and venous blood flow are heavily dependent on ________.

skeletal muscle contraction and differences in thoracic pressures due to respiration movement

2

Largest lymphatic organ

Spleen

3

Antibodies that act against a particular foreign substance are released by ________________.

plasma cells

4

Name 3 lymphatic tissues that are considered mucosa-associated

tonsils,Peyer's Patches and appendix

5

Because lymph vessels are very low pressure conduits, movements of adjacent tissues are important in propelling lymph through lymphatics
(T or F)

True

6

Receives lymph from most of the body

Thoracic duct

7

Digested fats are absorbed from the intestine by lymph capillaries (T or False)

True

8

Isolated clusters of lymph follicles found in the wall of the small intestine

Peyer's patches

9

The thymus is the only lymphoid organ that does not __________.

directly fight antigens

10

What effect does age have on the size of the thymus?

it initially increases in size and then decreases in size from adolescence through old age

11

Lymphatic capillaries are permeable to proteins (T or F)

True

12

What cells produce plasma cells, which secrete antibodies into the blood?

B cells

13

Which lymphatic organ stores blood platelets?

spleen

14

Small organs associated with lymphatic vessels are called ________.

lymph nodes

15

Protein containing fluid within lymphatic vessels

Lymph

16

The tonsils located at the base of the tongue are the _________.

lingual tonsils

17

What is bubo?

an infected Peyer's patch

18

Which lymphatic structure drains lymph from the right upper limb and the right side of the head and thorax?

right lymphatic duct

19

Lymphoid tissue is predominately reticular connective tissue (T or F)

True

20

Which cells become immunocompetent due to thymic hormones?

lymphocytes

21

The thymus is the most active during _____.

childhood