Lymphoid Structure

Question 1

Primary lymphoid organs are (2)

Answer 1

Bone Marrow
Thymus

Question 2

Main source of Hematopoetic Stem Cells

Answer 2

Bone Marrow

Question 3

Site of Maturation of B lymphocytes

Answer 3

Bone Marrow

Question 4

Site of differentiation and Maturation of T cells

Answer 4

Thymus

Question 5

Immature T cells are dense with

Answer 5

Cortex

Question 6

Mature T cells and Hassall corpuscles are dense with

Answer 6

Medulla

Question 7

Largest Secondary Lymphoid Organ

Answer 7

Spleen

*12 cm
*150 g
*Upper Left Quadrant

Question 8

It is Responsible of removing OLD RBC and DAMAGED cells, foreign antigens from the Blood

Answer 8

Spleen

Question 9

2 type of Splenic tissue:

Answer 9

Red pulp
White pulp

Question 10

Splenic tissue responsible of removing OLD RBC

Answer 10

Red Pulp

Question 11

Splenic Tissue that contains lymphoid tissue

Answer 11

White pulp (20%)

Question 12

In Spleen’s White Pulp:

It is found in the PERIARTEIOLAR LYMPHATIC SHEATH

Answer 12

T cells

Question 13

In Spleen’s White Pulp:

It is found in the Follicles of white pulp

Answer 13

B cells

Question 14

B cells found in the follicles of the white pulp are STIMULATED/UNSTIMULATED BBY ANTIGENS?

Answer 14

UNSTIMULATED

Question 15

Region between Red pulp and White Pulp by which APC awaits for capturing blood-borne pathogens.

Answer 15

Marginal zone

Question 16

Spleen receives ___ amount of blood

Answer 16

350 mL/min

Question 17

Central Collecting Point of Lymph fluids

Answer 17

Lymph nodes

Question 18

Encapsulated and with Trabeculae

Answer 18

Lymph nodes

Question 19

In Lymph nodes, it is the site of B cell localization and proliferation

Answer 19

Cortex

Question 20

In Primary Cortex, B cell are

Answer 20

Mature
Unstimulated with Antigens

Question 21

In Secondary Cortex, B cell are

Answer 21

Antigen Stimulated
With GERMINAL CENTER

Question 22

In Lymph nodes, it is localized between the Paracortex (between follicles and medulla)

Answer 22

T cells

Question 23

In lymph nodes, it contains the medullary cords and sinuses

Answer 23

Medulla

Question 24

Multiplication of Lymphocytes

Answer 24

Lymphopoiesis

Question 25

Lymphoiesis occurs in

Answer 25

Secondary Lymphoid Organ

Question 25

If the lymphocytes are produced by BM it is

Antigen dependent / Antigen Independent

Answer 25

Antigen Independent

Question 26

What cells are found after Postsplenectomy

Answer 26

Howell-Jowell bodies

Question 27

In Postsplenectomy, Plateletes are ______

Answer 27

Increased (released into the blood)

1/3 of Platelets are stored in Spleen
2/3 of Platelets are in blood

Question 28

Patient is known remove certain part of his organ; presence of Howell Jolly bodies are seen, Thrombocytosis and Lymphocytosis

Answer 28

Postsplenectomy