Saturn Medic
Histology (Urinary System)
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What are the foot processes on podocytes?
The inner layer of Bowman's capsule is the visceral layer. It consists of cells called podocytes. The outer layer of Bowman's capsule is the parietal layer. Pedicels are the foot processes on the podocytes
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Where is renin secreted from?
The juxtaglomerular cells secrete renin. The macula densa are specialized cells in the distal convoluted tubule that are sensitive to sodium. The juxtaglomerular cells and macula densa make up the juxtaglomerular apparatus.
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What vessels arise from the efferent arteriole?
The afferent arteriole branches off the interlobular artery. The afferent arteriole supplies blood to the glomerulus. The glomerulus is a capillary tuft. The glomerular capillaries converge to form the efferent arteriole. The peritubular capillaries is a second capillary network which arise after the efferent arteriole.
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What is the Malpighian corpuscle?
The glomerulus and Bowman's capsule make up the renal corpuscle. Another term for the renal corpuscle is Malpighian corpuscle.
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What is the projection of the medulla into the renal cortex called?
A region where a portion of the medulla project into the renal cortex are referred to as medullary ray.
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Approximately how many nephrons are there in each kidney?
There are approximately one million (1,000,000) nephrons in each kidney. The nephron is the functional unit of the kidney.
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What are the "straight vessels"?
Vasa recta are the "straight vessels" which arise from some of the efferent arterioles.
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What is the correct term for the foot processes on podocytes?
The inner layer of Bowman's capsule is the visceral layer. It consists of cells called podocytes. Pedicels are the foot processes on the podocytes.
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What type of tissue lines the bladder?
The lining of the bladder is transitional epithelium. Epithelium lines body cavities and surfaces. There are domed shaped cells on the apical surface.
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What is a renal pyramid and its associated cortex referred to?
The kidney can be divided into an outer cortex and an inner medulla. A kidney lobe consists of a medullary pyramid, its overlying cortex, and the associated renal column. The renal columns are the tissue in between the pyramids. The nephron is the functional unit of the kidney. A region where a portion of the medulla project into the renal cortex are referred to as medullary ray
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What is the double layered cap on the glomerulus?
Bowman's capsule is a double layered cap surrounding the glomerulus. This is the first portion of the uriniferous tubule. The glomerulus and Bowman's capsule make up the renal corpuscle. Another term for the renal corpuscle is Malpighian corpuscle.
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What is the functional unit of the kidney?
The nephron is the functional unit of the kidney.
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What is the space between the renal pyramids called?
The kidney can be divided into an outer cortex and an inner medulla. A kidney lobe consists of a medullary pyramid, its overlying cortex, and the associated renal column. The renal columns are the tissue in between the pyramids
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Which structure does the proximal convoluted lead to?
Bowman's capsule leads to the proximal convoluted tubule. The proximal convoluted tubule leads to the loop of Henle. This then leads to the distal convoluted tubule. The distal convoluted tubule then leads to the collecting duct.
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Which of the following is NOT a function of the kidney?
The kidney is involved in several things, in addition to urine production. Erythropoietin is produced in the kidney. Vitamin D is modified in the kidney, specifically, there is the addition of hydroxyl groups. The kidney plays an important role in acid base balance. Renin is produced in the kidney. Aldosterone is produced in the adrenal gland.
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What type of tissue composes the kidney tubules?
The kidney tubules are simple cuboidal epithelium. Epithelium lines body cavities and surfaces. Simple cuboidal epithelium is "simple" because it is one cell thick. "Cuboidal" refers to the shape of the cells.
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What vessel is formed from an aggregation of the glomerular capillaries?
The afferent arteriole branches off the interlobular artery. The afferent arteriole supplies blood to the glomerulus. The glomerulus is a capillary tuft.
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What is the capillary tuft of the nephron?
The nephron can be divided into the glomerulus and uriniferous tubule. The capillary tuft of the nephron is referred to as the glomerulus.
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What vessel is a branch of the interlobular artery?
The afferent arteriole branches off the interlobular artery. The afferent arteriole supplies blood to the glomerulus.
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What are the ducts of Bellini?
Large collecting tubules near the apex of the pyramid are the ducts of Bellini. The ducts of Bellini are also called a papillary ducts.
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What is the inner region of the kidney called?
The kidney can be divided into an outer cortex and an inner medulla. A kidney lobe consists of a medullary pyramid, its overlying cortex, and the associated renal column. The renal columns are the tissue in between the pyramids.
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Which structure leads to the collecting duct?
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What cells are sensitive to sodium concentration?
The macula densa are specialized cells in the distal convoluted tubule that are sensitive to sodium. The juxtaglomerular cells and macula densa make up the juxtaglomerular apparatus.
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What vessel supplies blood to the glomerulus?
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