Excretory System and Osmoregulation in Fish - Biology Notes Online
2024年9月28日 · Freshwater fish have larger kidneys and numerous glomeruli (approximately 10,000 per kidney), with sizes ranging from 48 to 104 µm. These fish experience water influx due to osmosis, necessitating the excretion of large volumes of dilute urine to prevent water retention or “waterlogging.”
WFS 550 Fish Physiology - Osmoregulation/Kidney Function
In fish, however, the kidney only serves an osmoregulatory function; the excretion of nitrogenous waste occurs at the gill where ammonia is excreted as quickly as it is produced (See Ch. VIIA). The functional unit of the kidney is the nephron which is …
EXCRETORY STRUCTURE IN FISH .pptx - SlideShare
2024年10月16日 · This document discusses the excretory structures in fish, including the kidney, gill surface, skin, liver, bile, intestine, chloride cells, and rectal gland. It elaborates on the five types of marine teleost kidneys as described by Ogawa in 1961, and the different parts of the kidney, including the endocrine elements in fish kidneys.
Do Fish Have Kidneys? (Structure & Functions) - Fish Article
2022年12月28日 · In most fish, the kidneys are located near the spine, just behind the gills. The structure of the fish kidney varies depending on the species of fish. In general, the kidney is a complex organ made up of several parts, including the …
Microphotographs of kidney of control fish showing normal renal …
The image of kidney of fish of control group illustrated uniform functional units called normal renal tubules having adequate space and normal glomerulus structure surrounding anatomical ...
Histological sections of kidney of fish L. rohita taken as control.
... kidneys of control fish showed normal structures and consisted of anterior head, middle body, and posterior trunk kidney (Figure 2). The anterior head kidney is mainly composed of...
Anatomy of Fin Fish and Shellfish (2+1): 8.5.1. Structure of Kidney
“Kidney is the organ through which most of the metabolic wastes are excreted”. The kidneys of fishes are reddish brown, soft elongated paired structures lying ventrally to the vertebral column. Though paired, the two kidneys show multiple shapes in different fishes due to …
Excretory system of fishes | PPT - SlideShare
2017年4月24日 · Kidney: • Kidneys of vertebrates are made up of nephron or kidney tubules. • In ancestral vertebrates, kidney possesses one nephron for each of those body segments that lay between the anterior and posterior end of the coelom. • The nephron drained into a duct called Wolffian or archinephric duct located posterior to the cloaca.
Physiology of Finfish and Shellfish: 2.3.5. Internal structure of kidney
Fish kidney consists of a large number (hundreds to 10,000) of tubular nephrons or uriniferous tubules each of which produces urine. Each nephron is made up of or consists of renal corpuscle or malpighian capsule and the tubule.
Virtual Microscope - Fish Kidney
The fish kidney filters out wastes from the blood and then passes them out of the body. The kidney also plays a major role in regulating the water and salt content of the fish’s body. This is partially how some fish are able to survive in saltwater while others survive better in freshwater.
- 某些结果已被删除