When its not Cancer: The Enlarged Prostate
The excretory system is a topic of the event Anatomy. It is rotating in for the season. This is the first time it is part of the Division B rotation. The urinary system consists of the kidneys, two ureters, the urinary bladder, and the urethra. Blood flows through the kidneys as they filter out waste such as urea. The urine produced by the kidneys goes through the ureters. It then waits in the urinary bladder, until it goes out through the urethra. Baldrian Prostatitis kidneys are kidney-bean shaped organs that are located in the superior lumbar region.
The right kidney is slightly inferior due to crowding by the liver. They are each about 12 cm by 6 cm by 3 cm. The convex side is located laterally. The medial indentation, known as the hilus is where the ureters, renal blood vessels, and nerves enter or exit the kidney. The adrenal glands are located immediately superior to the kidneys. They are part of the endocrine system. The kidneys are surrounded by a fibrous, transparent renal capsule and a fatty Baldrian Prostatitis known as the adipose capsule.
The adipose capsule serves to protect the kidneys and hold them in their positions. The nephron is the functional unit of the kidney. It is a tube-like structure that spans the renal cortex and medulla. The Baldrian Prostatitis human kidney contains1. The nephron is the site of ion and water reabsorption, and where urine is produced. The tubule is lined Baldrian Prostatitis microvilli, which increase the surface area. Nephrons may Baldrian Prostatitis classified by their location.
Most nephrons are located almost completely within the cortex, and Baldrian Prostatitis called cortical nephrons. Nephrons that are found Baldrian Prostatitis to the boundary between the cortex and the medulla, and whose loops of Henle are mainly within the medulla are known as juxtamedullary nephrons. Filtration - The passive process by which the filtrate is formed. Filtrate is identical in composition to blood plasma without the proteins, which are too large to pass through the glomerular capsule.
Reabsorption - The process of reclaiming useful substances from the filtrate such as water, ions, glucose, and amino acids. These substances are passed out of the tubules and into Baldrian Prostatitis extracellular space, where they are reabsorbed by the peritubular capillaries. This is mainly an active process, with the exception of water, which moves by osmosis.
The active transport is carried out by selective membrane carriers. This process is important in the regulation of homeostasis. Secretion - This is used to move Baldrian Prostatitis substances into the filtrate, either from the peritubular capillaries or the tubule cells. This process is also used in the Baldrian Prostatitis of drugs from the body and as an additional method of regulating blood pH. The bladder is Baldrian Prostatitis muscular sac that holds urine.
It can hold a maximum of ml of urine. It has a specialized stretch receptor that sends a nerve impulse to the spinal cord, resulting in contraction of the bladder muscles and relaxation of the internal sphincter. However, the stretch receptors send the first impulse when there are only ml of urine in the bladder.
The urethra is the tube that connects the bladder to the genitals and transports urine out of the body. There are two sphincters in the urethra; the internal involuntary sphincter at the junction of the bladder and urethra, and the external voluntary sphincter which is distal to the prostate in males, and just inferior to the internal sphincter in females.
Most of the substances removed are metabolic wastes, produced as by-products from normal body Baldrian Prostatitis. Some of the most toxic include the nitrogenous wastes. Urine is a waste product which is produced by the kidneys during the process of filtering the blood and is made up of water and other dissolved waste products. It Baldrian Prostatitis a typically yellowish fluid which is stored in the bladder and is discharged Baldrian Prostatitis the urethra.
The average urine volume for an adult in a day is around 1. Urine is produced at a rate of about Baldrian Prostatitis per hour. Urine consists of Baldrian Prostatitis water and then some other chemicals and compounds. The Baldrian Prostatitis composition of urine is listed below from highest Baldrian Prostatitis to lowest.
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Navigation menu Personal tools Log in. Namespaces Page Discussion. Views Read View source View history. This Baldrian Prostatitis was last modified on 1 Aprilat Content is available under Creative Commons Attribution unless otherwise Baldrian Prostatitis. Neu: Neuer, unbenutzter und unbeschädigter Artikel in nicht geöffneter Originalverpackung soweit eine Verpackung vorhanden ist. Mehr zum Thema Zustand.