columns. 3. What is the functional unit of the kidney? 4. Briefly explain how urine moves from the nephron to the bladder (order of ducts).
The removal of waste occurs in nephrons in the kidney and each kidney has about a million. A glomerulus (tiny blood vessel) in the nephron acts as a filter keeping normal proteins and cells in the bloodstream, letting excess fluid and waste pass through. Here a
WEEK 9 URINARY SYSTEM AND DERMATOLOGICAL DISORDERS The urinary system, also known as the renal system, consists of the two kidneys, ureters, the bladder, and the urethra. Each kidney consists of millions of functional units called nephrons. The purpose of the renal system is to eliminate wastes from the body, regulate blood volume and pressure, control levels of electrolytes and metabolites, and regulate blood pH. The kidneys have extensive blood supply via the renal arteries which leave the kidneys via the renal vein. Following filtration of blood and further processing, waste (urine) exit the kidney via the ureters, tubes made of smooth muscle fibers that propel urine towards the urinary bladder, where it is stored and subsequently expelled from the body by urination.
The color of the kidney comes from small capillaries that release blood into the kidney walls to give it a reddish-brown look. The kidney is divided into two main areas, a light outer area called the renal cortex, and a darker inner area called the renal medulla. There is a cavity attached to the indented side of the kidney, called the Renal Pelvis which extends into the ureter. Each Kidney is
Slightly to the right lies the urinary bladder and superior to it is the uterus, with the right ovary and fallopian tube lateral to it. Areas of the small intestines are visible curling around the pelvic cavity. The iliopsas is positioned medial to the route and the external abdominal oblique muscle is coming into view. The path now takes a medial direction on its journey to the right lower lung. The abdominopelvic cavity is home to some of the accessary organs of the digestive system.
2. List and describe the location of the accessory organs of the digestive system. a. Salivary glands—located in the oral cavity. b. Liver—lies just below the diaphragm on the right side of the body. c. Gallbladder—lies on posterior side of the liver.
Right lymphatic duct b. Thoracic (left lymphatic) duct c. Right and left subclavian veins d. Cisterna chyli . e. Determine the direction of blood and lymph movement between arterioles, blood and lymph capillaries, and venules. Blood and lymph move between arterioles, blood and lymph capillaries, and venules through lymphatic capillaries. These capillaries are located in the spaces between cells and are closed at one end. Blood capillaries converge to form venules and then veins.
Most of the needed material is later returned to the blood. Urine flows from the kidneys through the ureters, and down into the urinary bladder, where it is stored. The kidneys act as filters and contain about 1 million tiny nephrons. As urine forms, they maintain homeostasis by regulating the water level in our
False Glucose is one of the major electrolytes in plasma. False Both body water and sodium are lost during excessive sweating. True Facilitated diffusion requires a membrane carrier protein and cellular energy. False Ribosomes consist of three subunits of equal size. False An isotonic solution for human red blood cells is a D. 0.9% saline solution.
The thalamus has a posterior projection, the pulvinar that has lateral and medial geniculate bodies. Blood supply to the thalamus. • Posteromedial central arteries (Thalamoperforating arteries). • Posterolateral central arteries (Ganglionic/ Thalamogeniculate arteries) • Anterior choroidal • Posterior choroidal Venous drainage is via the deep system via the thalamostriate and basal veins. The medial and lateral nuclear groups are themselves subdivided as shown in the diagram below.