MALPIGHIAN CORPUSCLE Meaning and
Definition
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A Malpighian corpuscle, more formally known as a renal corpuscle, refers to a small structural unit located in the kidney, specifically in the renal cortex. It is an integral component of the nephron, which is the functional unit responsible for the filtration, reabsorption, and secretion of substances in the formation of urine.
The Malpighian corpuscle consists of two main parts: the glomerulus and the Bowman's capsule. The glomerulus is a tangled network of capillaries, while the Bowman's capsule is a double-walled cup-shaped structure that surrounds the glomerulus. Together, these structures play a crucial role in the initial filtration of blood within the kidney.
Blood flows into the glomerulus through afferent arterioles, where it undergoes high-pressure filtration. This filtration occurs due to the presence of fenestrated capillaries in the glomerulus, which have small pores allowing water, waste products, and small molecules to be filtered into the Bowman's capsule. Meanwhile, larger molecules such as proteins or blood cells remain in the glomerulus.
The filtrate collected in the Bowman's capsule then moves into the renal tubule, where further processes of reabsorption and secretion take place to modify the composition of urine before it is excreted. These multiple stages of filtration, reabsorption, and secretion collectively contribute to the maintenance of homeostasis by regulating the balance of water, electrolytes, and other substances in the body.
Overall, the Malpighian corpuscle serves as a vital component in the kidney's intricate filtration system, essential for the elimination of waste products and the maintenance of optimal physiological conditions.
Common Misspellings for MALPIGHIAN CORPUSCLE
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Etymology of MALPIGHIAN CORPUSCLE
The word "Malpighian" in the term "Malpighian corpuscle" is derived from the name of the Italian anatomist Marcello Malpighi (1628-1694). Marcello Malpighi is known for his contributions to the fields of anatomy and histology, particularly his detailed observations on the structure and function of various organs and tissues.
The term "corpuscle" refers to a small, distinct structure or particle. In the context of the Malpighian corpuscle, it refers to the tiny spherical structures found in the renal cortex of the kidney, also known as renal corpuscles. These structures are named after Marcello Malpighi due to his significant contributions to the understanding of renal anatomy.
