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Aliun [14]
3 years ago
9

You have just received your flu vaccine in your deltoid muscle. Explain all of the layers and structures the needle passed throu

gh
Biology
1 answer:
lozanna [386]3 years ago
8 0

The layers include the; epidermis, dermis, subcutaneous layer, a connective tissue layer, muscle.

The epidermis is the outermost layer and is made of flat squamous cells that have a lot of keratin.

The dermis is the layer below the epidermis and is much thicker than the epidermis and mainly composed of fibroblasts. It is also filled with blood and lymph vessels, glands and sensory receptors.

The subcutaneous is composed mainly of fat cells, called adipocytes, that act as an insulator layer. The connective tissue layer below has elastin and collagen fibres that connect the skin with the muscle tissue below.


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