lymph

Question 1

1. The net pressure pushing fluid ____of capillaries at the ____end is 10 mm Hg
2. The net pressure pushing fluid back ____ to the capillaries at the ______ end is only 8 mm Hg
3. Therefore, more fluid leaves than is __________ (about 3 L a day)
4. The extra fluid is picket up by the ___________system to prevent ______

Answer 1

1. The net pressure pushing fluid out of capillaries at the arterial end is 10 mm Hg
2. The net pressure pushing fluid back in to the capillaries at the venous end is only 8 mm Hg
3. Therefore, more fluid leaves than is reabsorbed (about 3 L a day)
4. The extra fluid is picket up by the lymphatic system to prevent edema

Question 2

Lymph capillaries are contained within

Answer 2

the loose connective tissue between the tissue cells and blood capillaries.

Question 3

Lymph capillaries absorb the leaked fluid through

Answer 3

one-way “minivalves”

Question 4

1. Lymphatics form a one-way system with lymph flowing toward the _______
2. Lymph returned to the venous system through the ______

Answer 4

1. Lymphatics form a one-way system with lymph flowing toward the heart
2. Lymph returned to the venous system through the great veins in the neck

Question 5

Help protect the body by removing foreign material such as microbes from the lymphatic system.

Answer 5

Lymph Nodes

Question 6

lymphocytes in the lymph nodes function in the

Answer 6

immune response.

Question 7

.
Macrophages in the Lymph nodes, Do what?______________before return to the blood

Answer 7

Macrophages engulf and destroy microbes before return to the blood

Question 8

2 Ducts Lymph is delivered

Answer 8

Right lymphatic duct

Thoracic duct

Question 9

Drainsright upper arm and right side of head and thorax

Answer 9

Right lymphatic duct

Question 10

Arises from cisterna chyli and drains rest of the body

Answer 10

Thoracic duct

Question 11

Lymphatic Ducts -Each empties lymph into venous circulation at junction of _______&_______on its own side of the body

Answer 11

** internal jugular and subclavian veins **

Question 12

Embedded in connective tissue, in clusters along lymphatic vessels

Answer 12

Lymphatic Nodes

Question 13

Part of the the Lymph node Cortex

that enlarges when B lymphocytes proliferate

Answer 13

germinal centers

Question 14

Parts of the Lymph node Cortex

Answer 14

Lymphoid Follicle

Germinal Center

Subscapular sinus

Question 15

Remainder of Lymph node cortex contains

Answer 15

T lymphocytes

Question 16

What are contained within the Lymph node medulla

Answer 16

Macrophages

Question 17

Largest lymphoid organ

Answer 17

SPLEEN

Question 18

Provides site for lymphocyte proliferation and immune surveillance of blood in the Spleen

Answer 18

White pulp

Question 19

Provides site where
Aged and defective RBC destruction and recycling
in the SPLEEN

Answer 19

Red pulp

Question 20

Spleen also stores ______and _________ for release into blood if needed

Answer 20

** platelets**

and

**monocytes **

Question 21

A bilobed organ that secretes hormones that cause T lymphocytes to become immunocompetent

Answer 21

THYMUS

Question 22

Thymus is most active during?

Answer 22

Childhood

Question 23

Thymus stops growing

Answer 23

during adolescence

Question 24

Thymus is found in INFANTS where?

Answer 24

inferior neck and extends into the mediastinum where it partially overlies the heart

Question 25

Thymic lobes contain

Answer 25

an outer cortex and inner medulla

Question 26

THYMUS Cortex contains densely packed _______ and scattered _________

Answer 26

** lymphocytes**

and

scattered macrophages

Question 27

MALT stands for

Answer 27

Mucosa-Associated Lymphatic Tissue

Question 28

protects the digestive and respiratory systems from foreign matter

Answer 28

MALT

Question 29

• ring of lymphoid tissue around pharynx

Answer 29

Tonsils -

Question 30

– isolated clusters of lymphoid tissue, similar to tonsils
Found in the wall of the distal portion of the small intestine
Similar structures are found in the appendix

Answer 30

Peyer’s patches

Question 31

in the walls of the bronchi (respiratory tract

Answer 31

Lymphoid nodules