Week 7 Lymph Part 3

Question 1

Size of nodules depends on?

Answer 1

1)where/how you cut and 2) current immune response of said person

Question 2

Collections of lymphatic nodules and diffuse lymphatic tissue are named according to?

Answer 2

The region they reside in (GALT, BALT, MALT)

Question 3

GALT

Answer 3

Gut-associated lymphatic tissue

Question 4

BALT

Answer 4

Bronchus-associated lymphatic tissue

Question 5

MALT

Answer 5

Mucosa-associated lymphatic tissue

Question 6

What is the next level of organization above lymph nodules or lymphatic follicles?

Answer 6

Lymph nodes

Question 7

Order of organization: lymph nodules/follicles, lymph nodes, diffuse lymphoid tissue

Answer 7

diffuse lymphoid tissue < lymph nodules/follicles < lymph nodes

Question 8

What are lymph nodes?

Answer 8

Small bean shaped encapsulated lymphatic organs aobut 1mm-2cm

Question 9

Are lymph nodules/follicles encapsulated?

Answer 9

NO! Only nodes

Question 10

Where are lymph nodes found?

Answer 10

Interspersed along the lymphatic vessels

Question 11

Afferent lymphatic vessels

Answer 11

Convey lymph to the node

Question 12

Efferent lymphatic vessels

Answer 12

Carry lymph away from the node

Question 13

**How does lymph nodes get lymph compared to lymph nodules?

Answer 13

Nodules rely on diffusion of interstitial fluid contacting immune cells; lymph nodes are encapsulated and rely on actual lymph movement flowing through vessels and going through node

Question 14

Afferent verses efferent?

Answer 14

Afferent vessel= toward lymph node; efferent vessel=away from lymph node

Question 15

What is the capsule of the lymph node?

Answer 15

Dense connective tissue surrounding the node

Question 16

What projects off the capsule of nodes into the center?

Answer 16

trabeculae

Question 17

Trabeculae

Answer 17

Dense connective tissue extending from the capsule into center of node forming a rough framework

Question 18

Trabeculae main anatomical purpose is to?

Answer 18

Divide the lymph node into sections

Question 19

What mostly makes up the dense connective tissue in capsule/trabeculae?

Answer 19

collagen

Question 20

reticular tissue

Answer 20

comprised of reticular cells (fibroblasts) and reticular fibers (collagen 3) form the fine meshwork throughout the node

Question 21

reticular tissue is made of what type of collagen tissue and what type of cell?

Answer 21

Collagen 3 and fibroblasts