Simple squamous epithelia is there so things can diffuse across. If it's one layer, it's generally telling you that it wants something to get in or get out. The cells of our kidneys are also simple cuboidal because we want things to go into it and modify it. X-acrine is a glandular tissue that makes something but secretes it into an external environment - most likely a duct.
One of the four tissue types of the body, epithelia lines and protects our organs from the external and internal environment. In this episode, Dr Matt & Dr Mike explain how the different shape and layers of epithelia tell you what function it performs (form = functions) and highlight examples in the body where you can find each type. They also explore cancer, metaplasia, dysplasia, and Dr Matt's mums skin cancer diagnosis and surgery.
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