⁣The lymphatic system is a network of delicate tubes throughout the body. It drains fluid (called lymph) that has leaked from the blood vessels into the tissues and empties it back into the bloodstream via the lymph nodes. The main roles of the lymphatic system include: managing the fluid levels in the body.

⁣In single circulation, blood flows to and from the heart through a single pathway, whereas in double circulation there are two separate pathways that are connected to the heart through which oxygenated and deoxygenated blood flows.

Learn about the structures of the excretory system and the formation of urine.

⁣Here is a song I created to help my 6th grade students study. I hope you enjoy.

Bladder balloon-like sac
Storing up urine in the pelvis socket
The, the, the kidneys filtering your blood out
The urinary system

Now, body taking in food like, "What up I got a Big Mac!"
You're so filled up by some food in your stomach
Used for repair and for your energy
Your body needs "Man there's some junk ain't needed"
Nutrients going deep, waste products not to keep
Urinary works with lungs and the skin, intestines
All of which rid the waste, keeping balanced chemicals
Only keep what body needs, body will release this...

But it's a quart and a half each day (roughly)

Depends on drinking on, lost in sweat and how you're breathing in
Taking in of medications makes the total amount of the urine
Eating up protein, vegetables
Urea in blood to kidneys
Bean shaped organs near the middle of your back rib cage
Remove urea from blood, removes urea from blood
No for real, ask your Grandpa filtering with the nephrons (Thank You)
Each nephron capillaries-glomerulus
And a small tube called the renal tubule
Water waste substance urea waste substance
Urine it is forming, in nephrons and the tubules
Thin tubes, thin tubes, ureters to bladder
Urine moving ureters 8-10 inches long
Muscles they will tighten, in the walls, moves downward
Small amounts of urine emptied into the bladder

Bladder balloon-like sac
Storing up urine in the pelvis socket
The, the, the kidneys filtering your blood out
The urinary system

Bladder balloon-like sac
Storing up urine in the pelvis socket
The, the, the kidneys filtering your blood out
The urinary system


What you know about a hollow muscle this organ
What you know about your bladder balloon-like thing
It's storing, it's storing urine inside like luggage
It's just trash 'til your body will go, empty
Thank your bladder for holding urine two cups inside it
Holds tight for some 2-5 hours
Circular muscles and you can call them the sphincters
Yeah, that sphincters help to keep all the urine from leaking
Close tightly, not lightly, opening urethra
They pinch the urine from escaping
Rubber bands keeping waste from p****ing
The nerves in bladder tells your body when to use the restroom
To use the potty or the "loo" or head to urinate in
You be like "Oh that toilet, that's hella tight"
Your like "Yo, I feel the urge to urinate"

Feeling the sensation let's do some addition
Bladder it continues filling, that's just when it's reached it's limit
You feel that urge to let it go hurtin'
The nerves they telling your brain, "Do your business"
Your bladder is hurting, yo
And when going number one the brain send signals to all the muscles holding-don't
Squeezing bladder muscles like a stress ball
And as these muscles relax then urine goes
Urine going through

Urethra, Urinate, Yeah!

Bladder balloon-like sac
Storing up urine in the pelvis socket
The, the, the kidneys filtering your blood out
The urinary system


To balance chemicals
It is incredible
Urinary system
From kidneys down to sphincter
To balance chemicals
It is incredible
Urinary system
From kidneys down to Sphincter

Bladder balloon-like sac
Storing up urine in the pelvis socket
The, the, the kidneys filtering your blood out
The urinary system

Perhaps your bladder is full?

#excretion #humanexcretion #kidneys
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Excretion is a process of removing waste materials such as nitrogenous waste through excretory system is known as Excretion. Excretory system includes a pair of Kidneys; a pair of ureters, Urinary bladder and urethra to complete excretion process successfully. Excretion is carried out by one special organ in human body called Kidney. Kidney has specialized structure called nephrons for excretion. Kidney performs excretion process in three steps such as Filtration, Re absorption and secretion. Urinary bladder and urethra are mainly involved in Urination that is excretion of urine from the kidney.

⁣Blood clotting, or coagulation, is an important process that prevents excessive bleeding when a blood vessel is injured. Platelets (a type of blood cell) and proteins in your plasma (the liquid part of blood) work together to stop the bleeding by forming a clot over the injury

⁣Blood is a specialized body fluid. It has four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues.

What is Mathematics? Explained using animations and illustration Video.