What part of the theca leutien cell secretes angiotensin?
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I think you are confused.\n\nAngiotensin is produced from angiotensinogen, which originates in the liver. It functions to increase blood pressure through vasoconstriction and also stimulates the release of aldosterone from the adrenal cortex. It is unrelated to the thecal cells of the ovaries.\n\nThecal cells are located in the follicles of the ovary in females. In response to the binding of leutinizing hormone (LH) to thecal cells, the androgens androstenedione and testosterone are produced. These then move to the granulosa cells where they are converted to the female sex hormones estrone and estradiol. Thecal cells also release small amounts of progesterone.\n\nIt is possible that you are confusing "angiotensin" with "androgen". Hopefully this clears it up for you?
945800
Hi.  I found a link to which will help you answering your question.\n\nThis is not my field of expertise, but I'm guessing the darker sections indicate heterochoramtin.  This is the portion of the chromosome that not currently being used for expression of proteins.\n\nHope this helps.  Pass on the good karma!
502759
Insulin secreted by the beta cells of the pancreas controls the blood glucose levels by stimulating body cells to increase the uptake and utilization of glucose; enhancing the formation of glycogen from glucose and by stimulating fat synthesis in liver. \n\nWhere as the other hormone GLUCAGON (secreted by the alpha cells of the pancreas) increases the blood glucose level when the level goes below normal. This is done by accelerating the breakdown of glycogen to glucose and by increasing the breakdown of fats to fatty acids and glycerol(this can be used as a source of energy instead of glucose).
840780
first part is D,but the second part which lysis the food is lysosome
217907
it's located in the cytoplasm
981645
The hormone is synthesized and secreted from alpha cells (α-cells) of the islet of Langerhans, which are located in the endocrine portion of the pancreas. The alpha cells are located in the outer rim of the islet.
315520
Insulin is made and secreted by the beta cells of the pancreatic islets, small islands of endocrine cells in the pancreas.
827724
Each kidney receives its blood supply from the renal artery, two of which branch from the abdominal aorta. Upon entering the hilum of the kidney, the renal artery divides into smaller interlobar arteries situated between the renal papillae. At the outer medulla, the interlobar arteries branch into arcuate arteries, which course along the border between the renal medulla and cortex, giving off still smaller branches, the cortical radial arteries (sometimes called interlobular arteries). Branching off these cortical arteries are the afferent arterioles supplying the glomerular capillaries, which drain into efferent arterioles. Efferent arterioles divide into peritubular capillaries that provide an extensive blood supply to the cortex. Blood from these capillaries collects in renal venules and leaves the kidney via the renal vein. Efferent arterioles of glomeruli closest to the medulla (those that belong to juxtamedullary nephrons) send branches into the medulla, forming the vasa recta. Blood supply is intimately linked to blood pressure.\n\n\n[edit] Nephron\n \n1. Renal pyramid\n2. Efferent artery\n3. Renal artery\n4. Renal vein\n5. Renal hilum\n6. Renal pelvis\n7. Ureter\n8. Minor calyx\n9. Renal capsule\n10. Inferior renal capsule\n11. Superior renal capsule\n12. Afferent vein\n13. Nephron\n14. Minor calyx\n15. Major calyx\n16. Renal papilla\n17. Renal columnMain article: Nephron\nThe basic functional unit of the kidney is the nephron, of which there are more than a million within the cortex and medulla of each normal adult human kidney. Nephrons regulate water and soluble matter (especially electrolytes) in the body by first filtering the blood under pressure, and then reabsorbing some necessary fluid and molecules back into the blood while secreting other, unneeded molecules. Reabsorption and secretion are accomplished with both cotransport and countertransport mechanisms established in the nephrons and associated collecting ducts.\n\n\n[edit] Collecting duct system\nMain article: Collecting duct system\nThe fluid flows from the nephron into the collecting duct system. This segment of the nephron is crucial to the process of water conservation by the organism. In the presence of antidiuretic hormone (ADH; also called vasopressin), these ducts become permeable to water and facilitate its reabsorption, thus concentrating the urine and reducing its volume. Conversely, when the organism must eliminate excess water, such as after excess fluid drinking, the production of ADH is decreased and the collecting tubule becomes less permeable to water, rendering urine dilute and abundant. Failure of the organism to decrease ADH production appropriately may lead to water retention and dangerous dilution of body fluids, which in turn may cause severe neurological damage. Failure to produce ADH (or inability of the collecting ducts to respond to it) may cause excessive urination, called diabetes insipidus.\n\nAfter being processed along the collecting tubules and ducts, the fluid, now called urine, is drained into the bladder via the ureter, to be finally excluded from the organism\n\nBlood Pressure\n\nSodium ions are controlled in a homeostatic process involving aldosterone which increases sodium ion absorption in the distal convoluted tubules.\n\nWhen blood pressure becomes low, a proteolytic enzyme called Renin is secreted by cells of the juxtaglomerular apparatus (part of the distal convoluted tubule) which are sensitive to pressure. Renin acts on a blood protein, angiotensinogen, converting it to angiotensin I (10 amino acids). Angiotensin I is then converted by the Angiotensin converting enzyme (ACE) in the lung capillaries to Angiotensin II (8 amino acids), which stimulates the secretion of Aldosterone by the adrenal cortex, which then affects the kidney tubules.\n\nAldosterone stimulates an increase in the reabsorption of sodium ions from the kidney tubules which causes an increase in the volume of water that is reabsorbed from the
1094870
We have used the pH-dependent fluorochrome fluorescein-dextran (FD) to study the acidification of prelysosomal vacuoles (endosomes) and lysosomes isolated from cultured macrophages and fibroblasts. FD was internalized by pinocytosis under conditions that allowed its selective localization in endosomes (1- to 5-min pulse) or in lysosomes (5-min pulse, 30-min chase). Fibroblasts were also exposed to FD at 20 degrees C, at which temperature endosome-lysosome fusion is inhibited. Cells were homogenized and labeled organelles were separated by centrifugation in Percoll density gradients. The addition of ATP rapidly decreased the internal pH of both endosomes and lysosomes, as indicated by a decrease in fluorescence intensity. The pH gradient was dissipated by H+ ionophores and ammonium chloride. Acidification was not affected by inhibitors of the mitochondrial F1,F0-ATPase or the Na+, K, K+-ATPase and did not require permeant anions, Na+, or K+. Of the inhibitors tested, only N-ethylmaleimide prevented the ATP-dependent acidification of both compartments. These findings provide direct support for the existence of an acidic prelysosomal compartment that may be acidified via the same type of H+ pump believed to operate in lysosomes and secretory granules.
799547
can you be more specific? secrete from where?\ncystic fibrosis, maybe SIADH (a hormone problem)
951092
a group of cells form a tissue
846065
Vasculature is regulated by your autonomic nervous system if that is what you mean.  Theres a lot more to the parsympathetic, sympathetic stuff and it would take awhile to explain without you asking about a specific part of it.
1077836
none salt cause high bloodpressure and stress
225296
try searching on google....don't use common words like 'the'
85061
activation of cold-sensitive oropharyngeal receptors results in inhibition of vasopressin secretion. Antidiuretic hormone, also known as vasopressin, is a nine amino acid peptide secreted from the posterior pituitary. Injection of small amounts of vasopressin into a person or animal results in antidiuresis or decreased formation of urine, and the hormone was named for this effect. \n\nBasically, coldness activate receptors in your throat that inhibit vasopressin, a hormone that makes your thirsty. This is the reason that women are allowed to eat ice chips during childbirth and not drink water, in case they have to do surgery, the patient will be less likely to bleed if she is dehydrated.
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THE HUMAN STEROIDOGENIC ACUTE REGULATORY (STAR) GENE IS EXPRESSED IN THE UROGENITAL SYSTEM AND ENCODES A MITOCHONDRIAL POLYPEPTIDE \nAuthor(s): GRADI A, TANGWAI R, MCBRIDE HM, CHU LL, SHORE GC, PELLETIER J \nSource: BIOCHIMICA ET BIOPHYSICA ACTA-LIPIDS AND LIPID METABOLISM 1258 (3): 228-233 OCT 5 1995
87711
maybe u can check these websites, or just simply search in google images:\n\nhttp://employees.csbsju.edu/hjakubowski/classes/ch331/cho/ergolgi.jpeg\n\nhttp://www.eccentrix.com/members/chempics/Slike/cell/Golgi_apparatus.jpg\n\nhttp://micro.magnet.fsu.edu/cells/golgi/golgiapparatus.html \n\nhope this will help :)