22/23 Lymph

Question 1

Structure of Lymph Nodules consist of two parts:

Answer 1

Germinal Center and then Cortex=Mantle

Question 2

In this part of the lymph nodule structure there is predominately b lymphocytes and plasma cells, also helper t lymphocytes, macrophages and APCs
not always present if it is present usually indicates evidence of antigen response

Answer 2

GERMINAL CENTER

Question 3

Permanent collection of nodules are in three locations:

Answer 3

Tonsils – palatine , lingual and pharyngeal
Ileum – peyers patches
appendix

Question 4

this tonsil is made of pseudostratifed ciliated epithelium

Answer 4

Pharyngeal Tonsil = adenoids

Question 5

These tonsils are stratifed squamous non keratinized epithelium

Answer 5

Palatine and Lingual Tonsils

Question 6

How does lymphatic drainage bring fluid and cells back into blood circulation through what?

Answer 6

Thoracic duct and right lymphatic duct

Question 7

B lymphocytes lie where in the parenchyma of the lymph node

Answer 7

CORTEX – dark outer region filled with lymph nodules

Question 8

T-lymphocytes lie where in the parenchyma of a lymph node

Answer 8

PARACORTEX – inner cortex

Question 9

how do lymphocytes enter lymph nodes through what

Answer 9

HIGH ENDOTHELIAL VENULES (HEVS)

Question 10

Afferent Lymph Vessels – lymph flow

Answer 10

Subcapsular sinus –> trabecular sinus –> medullary sinus = lymph sinuses –> efferent lymph vessel

Question 11

This pulp of the parenchyma in the SPLEEN is dark staining tissue, mostly B cells in lymph nodules, T cells in periarterial lymphiatic sheath (PALS) around the central artery

Answer 11

WHITE PULP

Question 12

This pulp in the parenchyma of the SPLEEN consists of red cells (RBC, splenic cords, venous sinuses, and splenic discontinuous sinusoids)

Answer 12

RED PULP