Lymphatic System

The inner cortex lymphatic tissue comprises:

• medullary cords

• endothelial cells

• abundant reticular cells and fibers

• T cells and dendritic cells

• only macrophages

Within the cortex, the lymphatic tissues

• Are densely packed and form follicles

• Are loosely packed and form sinuses

• Comprise only primary follicles

• Comprise only secondary follicles

• None of the selections

The subcapsular sinus:

Select all that apply

• Receives lymph from the afferent lymphatic vessel

• Receives lymph from the efferent lymphatic vessel

• Is lined by endothelial cells

The capsule gives rise to:

• medullary cords

• secondary follicles

• subcapsular sinuses

• trabeculae

• blood vessels

The mantle

• is present in primary follicles

• is present in secondary follicles

• overlies the germinal center

Answer explanation

Secondary follicles

• comprise a germinal center and mantle

• comprise only dendritic cells

• comprise primarily T cells

Answer explanation

Which of the following present antimicrobial antigens to trigger T cell activation?

• macrophages

• germinal center cells

• B cells

• dendritic cells

The cortical sinus:

• Lies next to the trabeculae

• Lies only in the inner cortex

• Surrounds the medullary sinuses

• All of the above

Lymph leaves the node through

• efferent vessels

• afferent vessels

Match the following

• Efferent lymphatic vessel

• A

• Cortex

• C

• Germinal center

• D

• Afferent lymphatic vessel

• B

Tags

NGSS.HS-LS1-2