lymphatics histology Flashcards by Caitlin Emily Thompson | Brainscape

Q

identify the afferent lymphatic vessel

A

afferent = arriving

travels mainly through sinuses through lymph node to efferent vessel

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Q

identify the efferent lymphatic vessel

A

packed w lymphocytes but no erythrocytes

located in hilus of lymph node

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Q

identify the medulla

A

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Q

identify the cortex

A

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Q

where is the lymph nodule?

A

outer edge of cortex

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Q

name the region of the cortex near the junction with the medulla and without nodules

A

the para cortex (thymus-dependent region of the lymph node)

this is where most of the T cells in the node are located

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Q

identify the capsule

A

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Q

identify the hilum

A

the region where blood vessels enter and leave the lymph node

where an efferent lympathic vessel exits

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Q

identify the capsule of connective tissue (mostly collagen)

A

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Q

identify and explain what the trabeculum is

A

connective tissue that helps support/anchor cortex

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Q

identify the subcapsular sinus

A

(mostly collapsed)

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Q

identify the lymphatic nodule

A

a.k.a. the lymphatic follicle

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Q

identify the capsule

A

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Q

identify the sinus

A

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Q

identify the trabeculum

A

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Q

identify the reticular fibres

A

Q

identify the reticular fibres

A

form a supporting reticulum to house wandering cells

Q

identify the wandering cell

A

Q

how can you tell apart a reticular fibre frrom a coarse Type I collagen fibre of the trabeculae and capsule?

A

reticular fibres = stain black

coarse type I collagen fibres = stain brown (as it has less carbohydrates on its surface)

Q

identify the nucleus in the reticular cell

A

reticular cell (silver stain)

Q

identify the cytoplasm in the reticular cell

A

reticular cell (siler stain)

Q

what is a medullary cord?

A

long extension of a lymphatic nodule in the cortex

mostly contains B lymphocytes and plasma cells migrating out of the lymph node

Q

identify the dialated medullary sinuses and state their function

A

medulla (x5 mag)

spaces for lymph to percolate

Q

A