URINARY SYSTEM INFORMATION- ANATOMY-LESSON 73
ANATOMY OF THE URINARY SYSTEM: Urinary system anatomy organs consists of Kidneys (two), Ureters (two), Urinary Bladder, and Urethra. KIDNEYS: Two bean-shaped organs located at the back of the abdominal cavity i.e. retroperitoneal area, which is on moreover side of the vertebral column in the lumbar region of the spine. The kidneys are fixed and set in a cushion of adipose tissue and surrounded by fibrous connective tissue for safeguard. The size of each kidney is fist-sized approximately and about 4 to 6 ounces of weight of each. The kidneys consist of an outer cortex region (cortex means outer portion or bark or a tree) and an inner medulla region (medulla means core or inner portion). Hilum is a depression in each kidney on the medial margin of the kidney through which only blood vessels and nerves pass. URETERS: Each kidney has on long about 16 to 18 cm muscular tubes lined with mucous membrane. The put across the urine in peristaltic waves from the kidney ...