DIGESTIVE SYSTEM

Once upon a bite of food…

Digestive System…. HUH?!So there you are, sitting at lunch, enjoying some grilled chicken pizza and a few orange wedges. When you're finished, you take a lat drink of milk, wipe your mouth, and head to your next class. In a few minutes you're thinking about the capital of Oregon or your science fair project. You've completely forgotten about that pizza lunch you just ate. But it's still in your stomach — sort of like a science experiment that happens all the time

It all began with the MOUTH…• Your digestive system started working even before you took the first bite of your pizza. And the digestive system will be busy at work on your chewed-up lunch for the next few hours — or sometimes days, depending upon what you've eaten. This process, called digestion, allows your body to get the nutrients and energy it needs from the food you eat. So let's find out what's happening to that pizza, orange, and milk.

…• Even before you eat, when you smell a tasty food,

see it, or think about it, digestion begins. Saliva or spit, begins to form in your mouth.

• When you do eat, the saliva breaks down the chemicals in the food a bit, which helps make the food mushy and easy to swallow. Your tongue helps out, pushing the food around while you chew with your teeth. When you're ready to swallow, the tongue pushes a tiny bit of mushed-up food called a bolus toward the back of your throat and into the opening of your esophagus, the second part of the digestive tract.

So basically…• The mouth is where it all begins, SALIVA

breaks down the food a bit which makes it mushy and easier to swallow. I MEAN IMAGINE IF YOU HAD TO SWALLOW A WHOLE APPLE WITHOUT EVEN CHEWING IT.

• OUCH! I say OUCH!

PHARYNX….excuse me ? •Yes. The pharynx is the next step in the digestive process•Because both food and air move through it, the PHARYNX is part of both the respiratory and digestive system.

EPIGLOTTIS and OESOPHAGUS• A small piece of

tissue that covers the opening to the LARYNX and TRACHEA to keep the food out of your lungs when you swallow.

• OSEOPHAGUS• A soft muscular

tube that moves food from pharynx to stomach

LIVER•Did you know that the liver is the body’s largest internal organ ?!•It stores energy and helps body get rid of toxins

Gallbladder• It is a small pocket that stores BILE• EW.. I say .. EW.• Releases bile into deudonumen to help digest fats

in the food you eat… like that grilled pizza…

And now for the STOMACH :D

•The stomach has a lining that is tough enough to hold up in the highly acidic environment needed to break down food.

•You hungry or what ?

PANCREAS•Makes hormones and insulin to regulate the bool glucose level.•Also makes enzymes to break down food in the intestines

SMALL INTESTINE (deudoneum,jejuninm,ilemun)• Is called ‘small’ because of its width not length• It is actually larger than the large intestine in the

long run• OMG. Like seriously?• Small and large intestines can form one

continuous tube :O

Duodenum… whaaaaat?• Means 12 each in Latin • It forms PART of the small intestine• As long as the width as 12 fingers

• COOOOOOOOOOOOOOOOL :D

Jejunum.•OH MY SACK. Too much for me to handle•Middle section of small intestine•1.5 to 2.5 metres long.

Ileum•Third and final (at last) section of the small intestine•5-6 metres long

LARGE INTESTINE •WHEN WILL THIS ALL END ?•3 large parts•Cecum•Colon•Rectum

Cecum……………….WTH?!:O• Pouch like beginning of large intestine

• WOW. Most exciting thing I’ve heard all day…… :/

• BTW• Appendix : forms part of cecum and when it gest

inflamed it’s called APENDICITIS

COLON• Largest part of large intestine• 3 parts• 1) ascending• 2) transverse• 3) Descending

• Cool huh ? :/

RECTUM• Final 6-8 cm of large intetsine• Stores feaces (poo) until they leave the body

The Anus…………………………..:D• Marks the end of the digestive tract where feaces

leave the body.

• Ew. That’s ew. Just ew.

• At this point … nature starts calling…

• When you poop, what ends up in the toilet is the last step of digestion. A process that started way back with the grilled cheese sandwich you had for lunch. After you chew and swallow food, it heads to your stomach. From there it's on to the small intestine , then the large intestine (or bowels), and finally out of the body through the rectum and anus.

• All these parts make up your digestive system. As food moves through this system, your body soaks up water and nutrients it needs from the food. What's left over comes out as poop. Flush it and away it goes!

IN A NUTSHELL

….• And we have FINALLY reached the end…. Not.

NOW FOR DISEASES….• (sigh)• 1) CONSTIPATION• You probably don't think about this when you go to the

bathroom. In fact, you may not think about what you do in the bathroom much at all. But when you're not going like you normally do, it may be on your mind a lot and you may feel uncomfortable.

• Some people think they're constipated if they don't poop every day, but everybody's bathroom habits are different. Christin might go three times a day, and Sam might only go once every 3 days. So the real sign of whether you're constipated is if you're going less than you normally do.

…• Constipation is not having a bowel movement as often as you usually do, or

having a tough time going because the stool is hard and dry. It's a very common problem, and usually happens because a person's diet doesn't include enough fluids and fiber.

• Constipation usually isn't a cause for concern — it's preventable and most cases can be resolved with healthy eating and exercise habits.

• After you chew and swallow food, it heads to your stomach. From there, it's on to the small intestine, then the large intestine (or bowels), and finally out of the body through the rectum and anus.

• As food moves through your digestive system, your body soaks up water and nutrients it needs from the food. What's left over comes out as stool. Normal stool is usually soft and easy to pass, and it generally shouldn't be too difficult to have a bowel movement. But sometimes the bowels just don't move like they should.

• A person is considered constipated when he or she has had fewer than three bowel movements in a week; when the stools are hard, dry, and unusually large; or when it's hard for the person to have a bowel movement.

Esophagitis.• Esophagitis is an inflammation of the lining of the

oesophagus, the tube that carries food from the throat to the stomach. If left untreated, this condition can become very uncomfortable, causing problems with swallowing, ulcers, and scarring of the oesophagus. In rare instances, a condition known as may develop, which is a risk factor for oesophageal cancer.

Symptoms• Difficult and/or painful swallowing • Heartburn • Mouth sores • A feeling of something of being stuck in

the throat • Nausea • Vomiting • If you have any of these seek medical

advice

Irritable-Bowel-Syndrome

Irritable bowel syndrome is a symptom-based diagnosis characterized by chronic abdominal pain, discomfort, bloating, and alteration of bowel habits. As a functional bowel disorder, IBS has no known organic cause. Diarrhoea or constipation may predominate, or they may alternate

How to keep your digestive system healthy • Consume at least 20 to 25 grams of fiber daily.• Exercise regularly.• Drink at least eight glasses of water every day.• Avoid using laxatives except under your doctor’s supervision.• Reduce the amount of fat in your diet.• Do not smoke or use other tobacco products.• Use safe food handling and storage procedures.• Avoid drinking, washing, or cooking with water that may be contaminated by micro-organisms.

And that’s all for today folks ;) • Hope you peeps all enjoyed our slide show about

the digestive system ……..