Glomeruli surrounded by Bowman's capsules; aforementioned structures separated by capsular space; glomeruli demark the division between cortex and medulla in kidney.
Function: Filtration of blood; absorption and secretion of water, urea, and ions.
Cross-section with pseudostratified epithelium surrounded by hyaline cartilage, smooth muscle and adventitia. Hyaline cartilage and smooth muscle are also found in the bronchioles.
Function: passage of airway in the respiratory tract that conducts air into the lungs.
The epithelium of the urethra starts off as transitional cells as it exits, further along the urethra there are stratified columnar cells, then stratified squamous cells near the external urethral orifice. There are small mucus-secreting urethral glands, that help protect the epithelium from the corrosive urine.
tube that connects the urinary bladder to the genitals. In males, the urethra travels through the penis, and carries semen as well as urine. In females, the urethra is shorter and emerges above the vaginal opening.
The external urethral sphincter is a striated muscle that allows voluntary control over urination. Urethra is found as an extension to the urinary bladder.
Contain simple cuboidal epithelium.
Function: The renal tubule is the portion of the nephron containing the tubular fluid filtered through the glomerulus. After passing through the renal tubule, the filtrate continues to the colecting duct and exists the kidney.