Lymphatic

Question 1

Function of Lymphatic System

Answer 1

1)Transports excess fluid back to Blood stream 2)Transport dietary/lipids (lacteals) 3) immune function

Question 2

Lacteals

Answer 2

Small intestine (part of the GI tract) contains special types of lymphatic capillaries called lacteals. Lacteals pick up not only interstitial fluid; but also dietary lipids and lipid-soluble vitamins

Question 3

Lymph

Answer 3

Excess interstitial fluid and solutes

Question 4

Lymph Vessels and order

Answer 4

Carry lymph; Ducts -> Trunks -> Vessels -> Capillaries(smallest)

Question 5

Lymphatic Capillaries

Answer 5

1) Endothelium 2)Cells overlap form 1-way Flaps

Question 6

Lymphatic Vessels

Answer 6

Resemble veins 2) some connect to lymph nodes. 3) Afferent lymph being lymph to lymph nodes

Question 7

Lymph exits lymph node via

Answer 7

Efferent Lymph vessel

Question 8

Efferent

Answer 8

efferent means conducting outward”

Question 9

Lymphatic Truck Formed from

Answer 9

Merging lymph vessels

Question 10

Lymphatic Trunk 5 types

Answer 10

R/L Jugular; R/L subclavian; r/L Bronchomediastinal; R/L Lumbar; intestinal(1)

Question 11

Lymphatic Ducts

Answer 11

Drain from trunks empty into venous circulation

Question 12

Right lymphatic Duct

Answer 12

Receives from right site of Head neck; right upper limb; right thorax ; Empties into junction of R subclavian Vein and R internal jugular vein

Question 13

Thoracic Duct

Answer 13

Largest; Cisternae chyli; Receives lymph from LEFT side and everywhere else but right. Drains into junction of Left subclavian and L internal jugular veins

Question 14

Lymphatic Cells

Answer 14

1) Macrophages 2) Dendritic cells 3) Lymphocytes

Question 15

3 types of Lymphocytes

Answer 15

1) T-lymphocytes(most) 2) B- Lymphocytes 3) natural killer cells

Question 16

Helper T- lymphocytes

Answer 16

Helper T Lymphocytes; oversee immune response; secrete cytokines activating other lymph cells

Question 17

Cytotoxic T lymphocytes

Answer 17

Activated by T helper cells; Directly kill foreign cells (release chemicals)

Question 18

B-lymphocytes

Answer 18

1) Activated by helper T 2) Become either plasma cells or Memory B lymphocytes

Question 19

Plasma cells

Answer 19

B-lymphocytes (anti bodies)

Question 20

Memory Cells

Answer 20

B-lymphocytes: remember antigens; destroy recurrent antigens efficiently

Question 21

Natural killer cells

Answer 21

Kill variety of infected cells; 1st line of defense(general response)

Question 22

Lymphatic nodules

Answer 22

No CT capsule around them; cluster of cells; group to form MALT

Question 23

Cluster of Cells in Lymphatic

Answer 23

1) Germinal center: center w/B-lymphocytes and macrophages 2)T-lymphocytes are outside

Question 24

MALT

Answer 24

Mucosaassociated lymphoid tissue (MALT) in GI; respiratory; urinary tract(protective)

Question 25

Tonsils 3 parts

Answer 25

1)Pharyngeal 2) Palatine 3) Lingual

Question 26

Tonsil Char

Answer 26

No Ct Capsule ; lymphatic tissue

Question 27

Peyer Patch

Answer 27

Example of MALT in the small intestines ilium

Question 28

Thymus

Answer 28

Bilobed; anterior mediastinum; Assist T- Lymphocyte development(Children)

Question 29

Lymph Nodes Function Location

Answer 29

Filters antigens initiate immune response; located along lymph vessels.(axillar; inguinal and cervical lymphatic sinuses

Question 30

Parts of the Lymph Node

Answer 30

1) Cortex(T-Lymphocytes) 2) Medulla(macrophages) 3) Cluster

Question 31

Spleen

Answer 31

Largest Lymphatic Organ; LUQ left the kidney; Surrounded by CT capsule with trabeculae(filter blood)

Question 32

Germinal Center

Answer 32

In Lymph node B- Lymphocytes

Question 33

Spleen

Answer 33

White pulp surrender by red pulp

Question 34

More afferent of efferent

Answer 34

More afferent more going toward Lymph node(like the bay bridge)

Question 35

White pulp of spleen

Answer 35

bacterial blood

Question 36

Red pulp of spleen

Answer 36

Venous Blood