Showing posts with label Respiratory System. Show all posts
Showing posts with label Respiratory System. Show all posts

Tuesday, April 29, 2014

Epiglottis


When you breathe, your mouth takes in air.

When you eat or drink, your mouth takes in solids and liquids.

The epiglottis helps keep your air going into your lungs, and keeps the food and drink out of your lungs.

The epiglottis is a small piece of skin below your pharynx that usually stays pointed up and out of the way so you can breathe.

When you swallow, a bone in your throat called the hyoid bone pulls it down flat and blocks your trachea, so the food doesn't go into your lungs.
epiglottis
(from: wikipedia - epiglottis)


Kid Facts - Blast from the past: mandible

Tuesday, April 22, 2014

Pharynx


At the very back of your throat and above your larynx is something called the pharynx.

It is the area that connects your mouth and nose to your throat.
pharynx
(from: wikipedia - pharynx)


Kid Facts - Blast from the past: Temporal Bone

Tuesday, April 15, 2014

Adam's Apple


Inside the trachea where the larynx and vochal cords are, there is something called thyroid cartilage, which is padding for the larynx.

This padding sticks out in your throat area as a lump you can see and feel.
The lump is nicknamed the Adam's apple, also called the laryngeal prominence.

The Adam's apple is bigger in boys than in girls.

Adam's apple
(from: wikipedia - adam's apple)


Kid Facts - Blast from the past: Sphenoid Bone

Tuesday, April 8, 2014

Vocal Cords


We just learned about our larynx that is sometimes called our voice box.

Inside the layrnx are your vocal cords also called your vocal folds or voice reeds.

Your vocal chords are two pieces of skin that stay open when you breathe, but when you want to talk they move close together and vibrate, kind of like when you put your lips together and blow air out to make a buzzing sound.
vocal chords
(from: wikipedia - vocal folds)


vocal chords animated
(from: wikipedia - vocal folds)


Kid Facts - Blast from the past: Ethmoid Bone

Tuesday, April 1, 2014

Larynx


Up above your trachea is your larynx.

The larynx is also known as your voice box.
It is the place in your throat where your voice comes from.

larynx
(from: wikipedia - larynx)


Kid Facts - Blast from the past: Occipital Bone

Tuesday, March 25, 2014

Blood Air Barrier


We've learned that air comes down your trachea into your bronchi, then to bronchioles and finally to your alveoli where the oxygen you need goes into your blood.

The place in your alveoli where the oxygen in the air goes into your blood is called the blood-air barrier.

The air you breathe in has oxygen (sometimes called O2) that your body takes into your blood and sends all over your body.
Your body uses up the oxygen and sends back carbon dioxide (sometimes called CO2) in your blood to get rid of when you breathe out.

The blood-air barrier is where the oxygen goes in the blood, and the carbon dioxide comes out of the blood.
You can think of it like your body dumping out the old garbage CO2, and pickup up the new fresh O2 you need.
blood-air barrier
(from: wikipedia - blood-air barrier)


Kid Facts - Blast from the past: Parietal Bones

Tuesday, March 18, 2014

Alveoli


After the air you breathe in travels down your trachea, into your bronchi and into your bronchioles, it will finally end up in your alveoli. These look like little balls attached to the end of the bronchioles.

When the oxygen in the air you breathe in gets all the way down to your alveoli, it gets sucked right through the walls of the alveoli and goes into your blood, because your body needs blood filled with oxygen to survive.

It might seem strange that the oxygen goes right through the wall, but you can think of it like a very thin bed sheet. If someone blew air from a fan at you, you'd probably feel it. If they dumped a glass of water on you, you would definitely feel it! The walls of the alveoli are just like that, they are very very thin, so they let oxygen get through to your blood, but they don't let the blood come through into your lungs.

alveoli
(from: wikipedia - alveolus)


Kid Facts - Blast from the past: Frontal Bone

Tuesday, March 11, 2014

Bronchioles


Let's keep learning about the respiratory system!

We now that the lungs are where you store air you breathe in, the trachea is the big tube in your throat that carries air down toward your lungs, and the bronchi are the tubes that go left and right to each of your lungs.

When the air gets to the end of your bronchi, it gets to your bronchioles.

You can almost think of it like a tree. The trachea is the trunk, the bronchi are two big branches, and the bronchioles are a whole bunch of smaller branches.
bronchioles
(from: wikipedia - bronchiole)


Kid Facts - Blast from the past: Facial Skeleton

Tuesday, March 4, 2014

Bronchi


Let's keep learning about the respiratory system!

We know now that the lungs are where you store air you breathe in, and the trachea is the big tube in your throat that carries air down toward your lungs.

Your trachea comes down your neck, then splits into two parts called your bronchi.
One goes to the left lung, and one goes to the right lung.

bronchi
(from: wikipedia - right main bronchus)


Kid Facts - Blast from the past: Human Skull

Tuesday, February 25, 2014

Trachea


Let's keep learning about the respiratory system! Last time we learned a little about the lungs.

The trachea is also known as the windpipe, and it is the part of your throat that is like a tube that carries air from your mouth to your lungs.
You can feel your windpipe, it is in the front of your neck and feels like a big tube.
trachea
(from: wikipedia - vertebrate trachea)

Kid Facts - Blast from the past: foot phalanges

Tuesday, February 18, 2014

Lungs


The lungs are the part of your respiratory system that holds the air you breathe in.

When you breathe in deeply, you can feel your lungs get bigger and fill up with air.
The air we breathe has something called Oxygen that our body needs to live.
lungs
(from: wikipedia - human lung)


Kid Facts - Blast from the past: Metatarsus

Tuesday, February 11, 2014

Respiratory System


Your respiratory system is the part of your body that helps you breathe in air.

The air we breathe has something called Oxygen which our body needs to survive.

There are many parts to your respiratory system, from your chest to your throat to your nose!

respiratory system
(from: wikipedia - respiratory system)


Kid Facts - Blast from the past: Tarsus