The remaining portion of the nephron consists of a continuous and sophisticated tubule system (Figures 25. The system's ability to filter the blood resides in about 2 to 3 million glomeruli, which are distributed more or less equally between the two kidneys. Label as many of the features shown in the figure below on your specimen. Urinary System Practice Exam. 8 image description: This color chart shows 8 different shades of yellow and associates each shade with stages of hydration (lightest 3 shades) or dehydration (remaining 5 darker shades). Did you know that the kidney is important in determining the concentration of red blood cells? More here: Frequently Asked Questions on Human Urinary System. It is within the peritubular capillaries that reabsorption and secretion will take place.
Even then, serial sections and computer reconstruction are necessary to give us a comprehensive view of the functional anatomy of the nephron and its associated blood vessels. The pH is also subject to diurnal fluctuations. The filtrate in the glomerulus is very similar in composition to plasma with the important exceptions of plasma proteins and blood cells. Chapter 15 urinary system answer key. Once the interlobar arteries reach the cortex, they bend abruptly and branch to form the arcuate arteries. Click on prefixes, combining forms, and suffixes to reveal a list of word parts to memorize for the urinary system. 7 The series of blood vessels in the kidney.
The donor may be living or recently deceased. Urinary sphincter muscles. To learn more about urology as a specialty, visit the American College of Surgeons' web page. Chapter 15: Urinary System Sonography II Workbook Flashcards. The minor component in a solution (Betts et al., 2013). Urine turbidity (clarity) is often affected when red blood cells, white blood cells, epithelial cells, bacteria, mucus, lipids, or crystals. Site where tubular reabsorption and secretion occur.
The walls of the calyces and renal pelvis are lined with transitional epithelium and contain smooth muscle. The _________ (renal column/renal papilla) is the extension of the renal cortex projecting into the renal medulla. Through the renal artery, blood enters each kidney into the hilus – a curved notch near the centre on the side of each kidney. Sinawe, H., Casadesus, D. Urine culture. Chapter 15 urinary system answer key pdf. The _______ (right/left) kidney is positioned at a slightly higher level than the other. Examine the anatomy of the urinary system.
Further, the kidneys are involved in regulating blood pressure and in the secretion of vital hormones. Most importantly, the urinary system works to remove the dissolved materials from the blood through the process of filtration. In the male, pseudostratified columnar epithelium lines the urethra between these two cell types. It promotes sodium reabsorption by the nephron, promoting the retention of water. Chapter 15 urinary system answer key quiz. Passive secretion of hydrogen ions. Urine formed within the kidney passes through a renal papilla at the apex of a pyramid into a minor calyx (Fig. The mucous membrane in the ureters stores urine in the bladder and prevents it from moving back up towards the kidneys where it can cause an infection. Normal micturition is a result of stretch receptors in the bladder wall that transmit nerve impulses to the sacral region of the spinal cord to generate a spinal reflex. Any filtered material that is not desirable though will be excreted from the body.
Diabetic nephropathy impacts the kidneys as a result of having diabetes mellitus type 1 or 2. This maintains the local supply of oxygen and nutrients and removes waste products. Exercise 4 Histology of the kidney. The kidney filters metabolic products from the blood and returns important components such as water, glucose, and ions back into the blood. The glomerulus and Bowman's capsule together form the renal corpuscle. Which of the following is not considered a part of the male urethra? Nephrons are the "functional units" of the kidney and located in the renal cortex (Figure 25. B. papillary duct → major calyx → minor calyx → renal pelvis →. As the kidneys lie on either side of the vertebral column, each is associated with different structures. Examination of the bladder and urethra using a cystoscope, inserted into the urethra. Urine volume varies considerably. Abnormal enlargement of a kidney, which may be caused by blockage of the ureter (such as by a kidney stone) or chronic kidney disease that prevents urine from draining into the bladder.
The renal corpuscle is comprised of what two components?