The document summarizes the journey of food through the digestive system in 7 steps:
1) Food is chewed in the mouth by teeth and mixed with saliva before being swallowed down the esophagus.
2) The esophagus squeezes food into the stomach where it is further broken down by acids and muscular contractions.
3) Nutrients from the food are then absorbed through villi in the small intestine and enter the bloodstream, while waste continues through the large intestine.
4) In the large intestine, water is absorbed from the waste as it is compacted and pushed through the system before being expelled from the anus.
This is a powerpoint that is showing you the pathway of fatty food through the digestive system! The way i have wrote it , is by the foods point of view and what the food is seeing. I hope you enjoy the presentation! thank-you
This is a powerpoint that is showing you the pathway of fatty food through the digestive system! The way i have wrote it , is by the foods point of view and what the food is seeing. I hope you enjoy the presentation! thank-you
The Pluslogin website, here we can search for movies. All languages of movies can find on this website and also top music albums. Not only this business, Education, Jobs, etc. can search through this website.
Research Methods for Identifying and Analysing Virtual Learning CommunitiesRichard Schwier
Presentation at the University of Otago in Dunedin New Zealand on research methods we have employed at the Virtual Learning Communities Research Laboratory at the University of Saskatchewan.
Connections and Contexts: The Birth, Growth and Death of Online Learning Comm...Richard Schwier
This presentation considers what we have learned about learning communities in formal and informal online environments and speculates about what is at the heart of how learners make use of social interaction for the purpose of learning.
The Pluslogin website, here we can search for movies. All languages of movies can find on this website and also top music albums. Not only this business, Education, Jobs, etc. can search through this website.
Research Methods for Identifying and Analysing Virtual Learning CommunitiesRichard Schwier
Presentation at the University of Otago in Dunedin New Zealand on research methods we have employed at the Virtual Learning Communities Research Laboratory at the University of Saskatchewan.
Connections and Contexts: The Birth, Growth and Death of Online Learning Comm...Richard Schwier
This presentation considers what we have learned about learning communities in formal and informal online environments and speculates about what is at the heart of how learners make use of social interaction for the purpose of learning.
Pursuing the elusive metaphor of community in e-learning environmentsRichard Schwier
An invited address to ED-MEDIA 2009 in Honolulu, June 25, 2009 This presentation draws on lessons we have learned about building personal learning environments and virtual communities from our research and experience in formal and non-formal learning environments. It addresses key questions of how can we construct, maintain and usher out communities, who joins communities, and what characteristics of communities seem to be shared across learning environments.
The digestive system is used for breaking down food into nutrients which then pass into the circulatory system and are taken to where they are needed in the body. Ingest food
Break down food into nutrient molecules
Absorb molecules into the bloodstream
Rid the body of indigestible remains
There are four stages to food processing:
Ingestion: taking in food
Digestion: breaking down food into nutrients
Absorption: taking in nutrients by cells
Egestion: removing any leftover wastes
Teeth: Grinds your food.
Salivary Glands: Produce the saliva in your mouth.
Tongue: Helps to push food into your esophagus.
Explain how the structure and function are linked together for the f.pdfhainesburchett26321
Explain how the structure and function are linked together for the following organs of the
digestive system:
1) Mouth
2) Oesophagus
3) Stomach
4) Small intestine
5)Large intestine
6)Rectum
7) Anuss
Solution
I.Mouth:
It is the first organ of the digestive system and food is first taken into the body via the mouth. It
consists of tongue, teeth and saliva. These three elements work together to aid the procedure of
swallowing. Teeth are used for the process of mastication to make the food smaller is size which
is softened by the saliva and turned into bolus by the tongue for aiding the process of
swallowing. Saliva is used for softening the food and digesting starch by the salivary amylase.
Swallowing occurs bytwo involuntary actions - the soft palate, the back of the roof of the mouth,
closes off the nasal cavity, and the epiglottis, a flap of cartilage, tilts downwards to seal the
trachea.
II.II. Oesophagus – the food passes through the throat and enters the food pipe or trachea. The
walls of the oesophagus are muscular and elastic and helps propel the food towards the stomach
by rhythmic muscular contractions called peristalsis. Just before the opening to the stomach is an
important ring-shaped muscle called the lower esophageal sphincter (LES). This sphincter opens
to let food pass into the stomach and closes to keep it there. LES prevents regurgitation.
III.Stomach – the food is propelled into the stomach where it stays for upto five hours. The food
along with the gastric juices of the stomach is converted to chyme by the churning action of the
stomach walls. The stomach walls secrete strong acid (HCl) to make the food acidic in order for
the enzyme pepsin to work. Pepsin is important for the breakdown of proteins. Once the contents
of the stomach are properly processed they are released into the upper small intestine through the
pyloric sphincter.
IV.Small intestine – Small intestine is the longest organ of the digestive system and its composed
of three segments called the Duodenum, Jejunum and ileum. The food is released into the
duodenum from the pyloric sphincter where the pancreatic juices are released along with bile
juice from the bile duct. The bile turns the food alkaline so that the pancreatic enzymes can
process the food. These enzymes require a alkaline medium to digest the fats and lipids. Contents
of the small intestine start out semi-solid, and end in a liquid form after passing through the
organ. Water, bile, enzymes, and mucous contribute to the change in consistency. The duodenum
is largely responsible for the continuous breaking-down process, with the jejunum and ileum
mainly responsible for absorption of nutrients into the bloodstream. Once the nutrients have been
absorbed and the leftover-food residue liquid has passed through the small intestine, it then
moves on to the large intestine, or colon. The small intestine has a folded lining to absorb
nutrients; the lining of the large intestine is flatter
V.Large intestine -.
Welcome to the Program Your Destiny course. In this course, we will be learning the technology of personal transformation, neuroassociative conditioning (NAC) as pioneered by Tony Robbins. NAC is used to deprogram negative neuroassociations that are causing approach avoidance and instead reprogram yourself with positive neuroassociations that lead to being approach automatic. In doing so, you change your destiny, moving towards unlocking the hypersocial self within, the true self free from fear and operating from a place of personal power and love.
Collocation thường gặp trong đề thi THPT Quốc gia.pdf
Down The Hatch
1. 1. Down the Hatch
It all starts with that first bite of pizza.
Your teeth tear off that big piece of crust. Your
saliva glands start spewing out spit like fountains.
Your molars grind your pizza crust, pepperoni,
and cheese into a big wet ball.
Chemicals in your saliva start chemical reactions.
Seemingly like magic, starch in your pizza crust
begins to turn to sugar! A couple of more chews
and, then, your tongue pushes the ball of chewed
food to the back of your throat. A trap door opens,
and there it goes, down your gullet!
2. 2. Down the Tube
Next, your muscles squeeze the wet mass of
food down, down, down a tube, or esophagus,
like squeezing a tube of toothpaste. It's not
something you tell your muscles to do -- they just
do it. Then, the valve to the stomach opens and
pizza mush enters your stomach!
Valve: like a door
3. 3. Inside your stomach
Imagine being inside a big pink muscular bag --
sloshing back and forth…moving around in a sea
of half-digested mush and being mixed with
digestive chemicals. Acid rains down from the
pink walls which drip with mucus to keep them
from being eroded. The walls of muscle contract
and fold in on themselves again. Over and over
again, you get crushed under another wave of
slop. Every wave mixes and churns the food and
chemicals together more--breaking the food into
even smaller and smaller bits.
4. 4. The Chemical Process
Then valves open and the slop gets pushed into
the small intestine. Inside the small intestine,
chemicals and liquids from places like your
kidneys and pancreas break down and mix up
the leftovers.
5. 5. The Small
Intestines
The small intestine looks like a strange
underwater world filled with things that resemble
small finger-like cactuses. But they're not
cactuses, they're villi. Like sponges, they are able
to absorb a lot of nutrients from the food you eat.
From the villi, the nutrients will flow into your
bloodstream.
6. But hold on! Wait! The story is still not over yet --
it is not finished. The leftovers that your body
can't use still have more traveling to do!
Review:
•you eat & chew food
•you swallow the food
•you digest the food in the stomach
•your intestines takes nutrients from the food
and adds them to your blood
•the leftovers - the remaining stuff is waste
•you go to the toilet and the waste comes out
7. 6. The Large Intestine
Next, they're pushed into the large intestine. It's
much wider and much drier. You find that the
leftovers getting smaller, harder and drier as
they're pushed through the tube. After all, this is
the place where water is taken out and put back
into your body. In fact, the leftovers that leave
your body are about 1/3 the size of what first
arrived in your intestines!
fast
wide faster
wider fastest
widest
8. 7. Where Food Turns Into Poo
Finally, the end of the large intestine is in sight!
Now the drier leftovers are various handsome
shades of brown. They sit, at the end of their
journey, waiting for you to expel them -- out your
anus. Of course, you know the rest! A glorious,if
slightly stinky, journey, don't you think?
handsome=pretty
glorious=great
expel=push out
anus=bum
journey=trip
9. Listen again and try to answer these questions
What does the mouth do?
What do teeth do?
What is the purpose of saliva?
What does the tongue do?
After the mouth, where does the food go to?