std – 6 th sub – science 11.organ systems presented by -panchal amol points to study 11.organ...
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STD – 6th SUB – SCIENCE 11.Organ Systems
Presented By -Panchal Amol
Points to study
11.Organ Systems
Introduction – Organs and organ system.The digestive system.Some organs of the digestive system and their functions.Respiratory system.
STD – 6th SUB – SCIENCE 11.Organ Systems
Presented By -Panchal Amol
Introduction – Organs and organ system
1. We can not say that single specific organ carries out a body function.
2. The function is carried out by number of organs working together .
3. Organ system – 1. A group of organs working together to carry out common body function is called Organ system.
2. Respiration, digestion , circulation, excretion and
reproduction are the common body function.
Functions are carried out by a number of organs working
together as a group.
ORGAN SYSTEM
• A group of organs working together to carry out a common bodily function is called an organ system.
Question time ?
• 1) What is digestion of food ?
The digestive system.
The group of organs working together to carry out common body function is called the digestive system.
Organs of the Alimentary Canal· Mouth· Pharynx· Esophagus· Stomach· Small intestine· Large intestine· Anus
Mouth
· Lips· Teeth· Tongue
Stomach
Slide 14.15a
· Located on the left side of the abdominal cavity
· Food enters at the cardioesophageal sphincter
Stomach
Stomach Functions
· Acts as a storage tank for food
· Site of food breakdown
· Chemical breakdown of protein begins
· Delivers chyme (processed food) to the small intestine
Chemical Digestion in the Small Intestine
Figure 14.6
Large Intestine
· Larger in diameter, but shorter than the small intestine
· Frames the internal abdomen
Large Intestine
Functions of the Large Intestine
· Absorption of water
· Eliminates indigestible food from the body as feces
· Does not participate in digestion of food
· Goblet cells produce mucus to act as a lubricant
Question Hour.
• Q1) Name some organ systems in the human body.
• Ans- Respiration, Digestion, Circulation,
• Q2) Where are salivary glands located?• Ans- Salivary glands located near throat and
the ears
STD – 6th SUB – SCIENCE 11.Organ Systems
Presented By -Panchal Amol
Respiratory system• Inhalation – Taking oxygen from the air inside the body.• Exhalation – To leaving out carbon dioxide from the body.• Breathing - Inhalation and exhalation togetherly called Breathing.*The nose, trachea, lungs, diaphragm the rib-cage are the parts of Respiratory system.
Oxygen CellHi I am O2 ,you can call
me oxygen, and I will be your guide today. I advise you keep all feet
and hands inside the ride at all times.
Respiratory Intro
You may be asking, what is the Respiratory system? Well, the Respiratory system is the system that helps you breath in and out, so oxygen (02) can be pumped through your body and carbon dioxide (CO2) can be removed from the blood stream. You must remember that the Respiratory system is made up of many different organs.
Welcome
Now we will begin our tour.
Welcome to…
MB
Nasal Cavity
Nose
Mouth
Bronchus
Bronchiole
Alveolus
Diaphragm
Throat
(pharynx)
Windpipe (Trachea)
Left lungs
Ribs
This is where it all begins. This is where the oxygen first
enters your body and also where Carbon Dioxide leaves.
The Nose and Mouth
The Nose and MouthWhen the air comes into your nose it gets
filtered by tiny hairs and it is moistened by the mucus that is in your nose.
Your sinuses also help out with your Respiratory System. They help to moisten
and heat the air that you breath.
Air can also get into your body through yourmouth/oral cavity but air is not filtered as
much when it enters in through your mouth.
Nose and Mouth Picture
Nasal Cavity
Nostril
Oral CavityPharynx
Here is a picture of your nasal and oral cavity.
The Pharynx and Trachea
Next we will head down to your pharynx(throat) and your trachea (windpipe).This is where the air passes from your nose to your bronchi tubes and lungs.
The Pharynx and Trachea
Your pharynx (throat) gathers air after it passes through your nose and then the air is passed down to
your trachea (windpipe). Your trachea is held open by “incomplete ringsof cartilage.” Without these rings your trachea might close off and air would not be able to get
to and from your lungs.
Pharynx
(Throat)
Mouth
Trachea
The Bronchi Tubes and Bronchiole
These bronchi tubes split up, like tree branches, and get smaller and smaller
inside your lungs.
The air flows past your bronchi tubesand into your bronchiole. These tubes
keep getting smaller and smaller until theyfinally end with small air sacs (called alveoli).
But we will go there later…
Alveoli and Bronchi Picture
Trachea
Bronchi Tubes
Bronchiole
Alveoli
Now we will head over to the alveoli and what happens when the
air finally makes it down there.
The Alveoli and Capillary Network
The Alveoli and Capillary NetworkYour alveoli are tiny air sacs
that fill up with air/oxygen when you breath in.
Your alveoli are surrounded bymany tiny blood vessels called
capillaries.
The walls of your alveoli (and capillaries) are so thin that the oxygen or carbon dioxide can
pass through them, traveling right into, orout of your blood stream.
Alveoli Picture
Here is a closeup picture ofyour Alveoli
and a Capillarysurrounding it.
Capillary
Red Blood Cell
Oxygen is picked up
Carbon Dioxide is dropped off
Wall of the air sac
Alveolus
Bronchiole
Respiratory Bronchiole
Alveolar Duct
Alveolar Sac
Capillaries
Cool pictures
Diagram of Diaphragm
Here is an experiment that you can try.
Respiratory Overview Review
CO2
JH
The Pharynx, or throat, is located where passages from the nose and mouth came together.
Air Passing over the mucus membrane of the nasal cavity is moistened, warmed, and filtered
Inside the lungs the Bronchi branch into small tubes called bronchioles
At the end of the bronchioles are bunches of alveoli, air sacs, arranged like grapes on a stem
Air enters the trachea, or wind pipe which leads to and from the lungs
The trachea divides into two tubes called bronchi
If one lobe is injured or diseased, the other lobes may be able to function normally