How is the excretion of reptiles?
All reptiles have lobed kidneys, elongated and in some species function together. Reptiles excrete Urine through the CLOACA and some species excrete TEARS. In reptiles that lack a urinary bladder, the excretion product passes through the ureter to the cloaca.
How does the excretory system work in birds and reptiles?
The excretory system of birds is composed of kidneys, ureters and cloaca. All three are responsible for removing waste from the blood of these animals. The kidneys are responsible for filtering nitrogen and uric acid waste from the blood.
What is the main function of the excretory system in animals?
The excretory system or apparatus of animals, vertebrates and invertebrates, is the set of organs and glands that are responsible for eliminating waste from an organism, whether they are the result of cellular metabolism or incorporated from the environment.
What are the excretory organs of animals?
excretory organs
- Lungs. They expel the carbon dioxide produced in cellular respiration into the air.
- Liver. It expels toxic products formed in the chemical transformations of nutrients into the intestine, these wastes are eliminated through the feces.
- Sweat glands.
- Kidneys.
What is the main function of the excretory system?
It is an apparatus made up of very different organs that are responsible for the vital function of excretion. The excretory system is responsible for eliminating toxic substances and waste from our body.
What is the excretory system and what is its function?
– Kidneys: Excretory organs where urine is made. – Ureters: Collecting ducts that collect urine at the exit of the kidney and transport it to the urinary bladder. – Urinary bladder: Organ where urine is stored. – Urethra: Conduit through which urine is eliminated to the outside.
How does the excretory system work and what is its importance?
The excretory system, also called the human urinary system, is a set of organs and other structures that are responsible for eliminating urine and sweat, which are liquids that have diluted substances that cannot be used by the human body.
What is the process carried out by the excretory system?
The excretory system is responsible for expelling waste from our body. To do this, it uses the urinary system and the sweat glands. The urinary system filters the blood to clean it of waste and produces urine. Sweat glands produce sweat and regulate our body temperature.
What is the importance of excretion?
Excretion is essential since it allows different toxins to be expelled from the body that are not useful and that can become harmful, therefore, it has a great function in the body, expelling and eliminating these substances. An example of this may be urine.
What are reptiles and their characteristics?
We call reptiles a set of quadrupedal and vertebrate animals, cold-blooded, whose main characteristic is to have skin covered with keratin scales. They are very abundant animals, especially in warm habitats, whose name comes from their way of walking: it comes from the Latin reptile, «that creeps».
How is the excretion of the birds?
This substance is eliminated simultaneously with the waste of digestion, since birds have a single exit hole, called the cloaca, which is responsible for carrying the waste of digestion and excretion to the outside, as well as the products of reproduction. (semen or eggs).
How are the kidneys and urinary system in birds and reptiles?
Unlike mammals, in birds and reptiles nitrogenous waste is eliminated in the form of uric acid and urates. This type of excretion requires less water, which represents an advantage for the conservation of the animal. Uric acid is synthesized by the liver and excreted in the kidneys.
How are the kidneys of birds?
The kidneys of birds are located in the ventral fossae of the synsacrum and ilium bones, dorsal to the abdominal air sacs. These are lobular, independent of size unlike mammals, and lack a precise boundary between the cortex and the medulla.
What type of kidney do amphibians have?
Amphibians have mesonephric kidneys that are unable to concentrate urine above the solute concentration of plasma. Urine passes from the renal tubules to the collecting ducts, then to the cloaca, and finally to the bladder.
What are amphibian kidneys like?
The Kidneys are of the Opistonefros type, more voluminous in the posterior region. The excretory system of amphibians is formed by Kidneys Excretory ducts Urinary bladder Elongated and flattened organs located on each side of the vertebral column. It extends along the lateral border of the kidney and empties into the cloaca.
How many kidneys do amphibians have?
It is formed by two kidneys that continue through two ureters; they empty into the cloaca. substances not present in the urine and an active reabsorption of some of its constituents.
How are the kidneys of vertebrates?
The kidneys of most vertebrates are similar in that they all produce urine (fluid or paste) by filtering body fluids and after modifying the filtrate by reabsorption and secretion of ions.
What organ transports toxic substances to the kidneys?
Fluid filtered by the glomerulus travels down a tiny tube-like structure called a ‘tubule’. The tubule regulates the concentration of salts, water, and waste products that are excreted in the urine. The filtered blood leaves the kidney through the renal vein and flows back to the heart.
How is urea transported to the kidneys?
Urea is carried in the bloodstream to the kidneys, where it is eliminated along with water and other wastes as urine.
What is the kidney system?
The kidneys are made up of three main sections. Each kidney is composed of an outer renal cortex, an inner renal medulla, and a renal pelvis. Blood is filtered in the renal cortex. The renal medulla contains the renal pyramids, in which urine formation takes place.
How does the kidney for children?
The kidneys are two organs that filter waste materials from the blood. These wastes are eliminated from the body in the form of urine. The kidneys produce important hormones, in addition to regulating blood pressure and the levels of water, salts, and minerals in the body.
How is a kidney damaged?
Causes include genetic problems, injuries, or medications. You may be at higher risk for kidney disease if you have diabetes, high blood pressure, or a close family member with kidney problems. Chronic kidney disease slowly damages the nephrons over time.