Diet Assessment 1 0 Ashley R

8/3/2019 Diet Assessment 1 0 Ashley R

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Explain the role of the following organs in the digestive system

The mouth and salivary glandsThere are three major pairs of salivary glands in the mouth. The largest pair of salivary glands, called the parotid glands, lies just behind the angle of the jaw,below and in front of the ears. Two smaller pairs, the sublingual glands and thesubmandibular glands, lie deep in the floor of the mouth. In addition to thesemajor glands, many tiny salivary glands are distributed throughout the mouth.All of the glands produce saliva, which aids in breaking down food as part of the digestive process.

http://www.merckmanuals.com/home/mouth_and_dental_disorders/salivary_gland_disorders/salivary_gland_disorders.html

The Oesophagus

The Oesophagus is about 25 cm’s long and allows the food you swallow to getto your stomach. When you swallow, the muscles along the length of theoesophagus tighten and relax in a ‘wave’ downwards and the food is movedinto the stomach. This all happens in a few seconds.

http://www.eatatease.com/oesophagus.html

The StomachLocation: Between a muscular tube called the oesophagus and the smallintestine.

Function: Storing food, breaking food down and mixing it with juices secretedby your stomach lining.

Food Store: Your stomach is a short-term food-storage facility. This allows you









to consume a large meal quickly and then digest it over an extended period of time. When full, your stomach can hold around one litre of chewed up food.Swallowed food is propelled down your oesophagus into your stomach. Foodis enclosed in your stomach by two circular muscles, known as sphincters.

http://www.bbc.co.uk/science/humanbody/body/factfiles/stomach/stomach.shtml

The PancreasLocation: Behind the stomach and level with the top of the small intestine.

Function: Secreting digestive enzymes and hormones that control blood sugar levels.

Digestion: When you eat, your pancreas releases digestive juices through aduct into your duodenum - the first part of your small intestine. This fluid isrich in enzymes that break down fats, proteins and carbohydrates. It alsocontains sodium bicarbonate which neutralises acid in your stomach.

http://www.bbc.co.uk/science/humanbody/body/factfiles/pancreas/pancreas.shtml The Liver Location: Under your diaphragm, more to the right side of your body.

Function: To get rid of toxins, to regulate your blood sugar levels and toproduce bile.

Largest internal organ: Your liver is your largest internal organ. A big blood vessel, called the portalvein, carries nutrient-rich blood from your small intestine directly to your liver.

http://www.bbc.co.uk/science/humanbody/body/factfiles/liver/liver.shtml

The large IntestineLocation: Surrounding your small intestine.

Function: To convert food waste products into faeces.

Making faeces: Your large intestine is the final part of your digestive tract.Undigested food enters your large intestine from your small intestine. It thenreabsorbs water that is used in digestion and eliminates undigested food andfibre. This causes food waste products to harden and form faeces, which arethen excreted.

http://www.bbc.co.uk/science/humanbody/body/factfiles/largeintestine/large_intestine.

shtml

The small IntestineLocation: Abdomen.

Function: Chemical digestion of food and absorption of nutrients into your blood.

Longest section of your digestive tract: Your small intestine is around five metres long, making it the longest section of your digestive tract. Although it is longer than your large intestine it has asmaller diameter. This is why it's called the small intestine.

http://www.bbc.co.uk/science/humanbody/body/factfiles/smallintestine/small_intestine.shtml


http://www.bbc.co.uk/science/humanbody/body/factfiles/pancreas/pancreas.shtml




http://www.bbc.co.uk/science/humanbody/body/factfiles/largeintestine/large_intestine.shtml















The ColonThe colon, or large intestine, is part of the digestive system, which is a seriesof organs from the mouth to the anus. When the shape of the colon or the way

it connects to other organs is abnormal, digestive problems result. Some of these anatomic problems can occur during embryonic development of thefetus in the womb and are known as congenital abnormalities. Other problemsdevelop with age.

http://digestive.niddk.nih.gov/ddiseases/pubs/anatomiccolon/

The Bladder Location: Behind your pelvic bone.

Function: storing urine.

Filling Up: Urine, made in your kidneys, is transported to your bladder via twonarrow tubes known as ureters. As your bladder fills up with urine it stretches.An adult bladder can usually hold about a pint of fluid comfortably. It can holdmore, but as it gets fuller it can be painful.When your bladder stretches beyond a certain point, nerves in the bladder wallsend a message to your brain telling it that your bladder is getting full andneeds to be emptied.

http://www.bbc.co.uk/science/humanbody/body/factfiles/bladder/bladder.shtml

The Gaul bladder Location: On the underside of your liver.

Function: To store and concentrate bile produced in your liver.

Storing and concentrating bile: Bile is a greenish-yellow, slightly acidic fluidthat is made in your liver. You produce about one litre of it a day.Bile is stored in your gall bladder and once it gets there, it is concentrated bythe removal of water.

http://www.bbc.co.uk/science/humanbody/body/factfiles/gallbladder/gall_bladder.shtml

Explain the role of the following food sources

Food Source Role Examples of Food type

Carbohydrates

The basic role of carbohydrates in the humandiet is to supply energy.Carbohydrates or caloriesalone cannot adequatelysupply our energy needs, for

we must have our carbohydrates in combination

BiscuitsCakesChocolateJelliesBananasBeans

PotatoesNuts












I eat a lot of fatty foods which isn’t really healthy but I back it up a quitea few foods with proteins and carbohydrates in.

Does your sport demand any specific diet requirements, if so whatphysiological changes does this cause?

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Diet Assessment 1 0 Ashley R