simple cuboidal epithelium. epithelial tissue types.

simple cuboidal epithelium cell tissue epithelial type cube single layer protection location nucleus medical scientific kidneys lungs ovaries testicles thyroid human anatomy biology membrane glands body microscope connective filtration secretion square central nervous system endocrine excretory nephron spinal cord brain cerebrospinal fluid education vector histology box cellular structure surface organ basal row types cube-like cells provide may active passive depending epithelium types