what is excreatory system in detail
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Excretory system
The excretory system is the system of an organism's body that performs the function of excretion, the bodily process of discharging wastes.
The Excretory system is responsible for the elimination of wastes produced by homeostasis.
There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system.
Every human has two kidneys.
Each kidney is made up of three sections: the renal cortex, the renal medulla and the renal pelvis.
The blood arrives at the kidney via the renal artery, which splits into many afferent arterioles.
These arterioles go to the Bowman's Capsules of nephrons, where the wastes are taken out of the blood by pressure filtration.
Peritubular capillaries also surround the nephron so substances can be taken in and out of the blood.
The renal cortex is the outer layer of the kidney and the medulla is the inner layer of the kidney.
The renal pelvis takes urine away from the kidney via the ureter.
Both of the ureters lead the urine into the body's only urinary bladder, which expands and sends nerve impulses when full.
From there, urine is expelled through the urethra and out of the body.
The excretory system is the system of an organism's body that performs the function of excretion, the bodily process of discharging wastes.
The Excretory system is responsible for the elimination of wastes produced by homeostasis.
There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system.
Every human has two kidneys.
Each kidney is made up of three sections: the renal cortex, the renal medulla and the renal pelvis.
The blood arrives at the kidney via the renal artery, which splits into many afferent arterioles.
These arterioles go to the Bowman's Capsules of nephrons, where the wastes are taken out of the blood by pressure filtration.
Peritubular capillaries also surround the nephron so substances can be taken in and out of the blood.
The renal cortex is the outer layer of the kidney and the medulla is the inner layer of the kidney.
The renal pelvis takes urine away from the kidney via the ureter.
Both of the ureters lead the urine into the body's only urinary bladder, which expands and sends nerve impulses when full.
From there, urine is expelled through the urethra and out of the body.
annu79:
what is cortex
an outer layer of tissue immediately below the epidermis
and renal
Renal Pelvis – basin-like area that collects urine from the nephrons, it narrows into the upper end of the ureter
Cortex – the outer region of the kidney; extensions of the cortical tissue, contains about one million blood filtering nephrons
Renal Artery – branches off of the aorta bringing waste-filled blood into the kidney for filtering in the nephrons; the renal artery is further subdivided into several branches inside the kidney. Each minute, the kidneys receive 20% of the blood pumped by the heart. Some arteries nourish the kidney cells themselves.Renal Vein – removes the filtered blood from the kidneys to the inferior vena cava
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