Lymphatics

Question 1

B lymphocytes originate and differentiate where? T-Lymphocytes?

Answer 1

B= O and D in bone marrow
T= O in bone marrow D in thymus

Question 2

What are primary and secondary lymphoid structures?

Answer 2

Primary=Bone marrow and Thymus

Secondary= all others

Question 3

What lines the lymphatic vessels?

Answer 3

Endothelial cells

Question 4

How many lymph sacs are there? what are they called?

Answer 4

6 main sacs

1. Jugular=2
2. Iliac=2
3. Retroperitineal=1
4. Cistern chyli=1

Question 5

What is vasculogenesis? Angiogenesis?

Answer 5

Vasculogenesis=Formation of new vessels

Angiogenesis= Formation of vessels from budding off a pre-existing vessel.

Question 6

How do lymphatic vessels develop?

Answer 6

Both my vasculogenesis and angiogenesis.

Question 7

What are the two main ducts? What are their fates?

Answer 7

Jugular and thoracic ducts. They eventually join.

Question 8

Lymph nodes have what charactersitics? (vessels, capsule, GC, Cortex, Medulla)?

Answer 8

1. efferent and afferent vessels,
2. Germinal Centers,
3. Capsule,
4. Cortex and Medulla.

Question 9

The thymus has what characteristics? (vessels, capsule, GC, Cortex, Medulla)?

Answer 9

1. efferent vessels
2. Thin capsule,
3. Germinal Centers,
4. Cortex, No Medulla.

Question 10

The Spleen has what characteristics? ( capsule, GC, Cortex, Medulla)?

Answer 10

1. Thick capsule
2. Germinal centers
3. No cortex or Medulla,
4. White and Red pulp

Question 11

MALT Peyer’s Patches have what characteristics? ( capsule, GC, Cortex, Medulla)?

Answer 11

1. No Capsule
2. Germinal Centers
3. NO Cortex or Medulla

Question 12

White pulp contains what? Red pulp?

Answer 12

White=Germinal centers

Red=RBC stores

Question 13

MALT definition? BALT? GALT

Answer 13

Associated Lymphatic Tissue
M=Mucosal
G= Gut
B= Brochial