Showing posts with label Human Body. Show all posts
Showing posts with label Human Body. Show all posts

Tuesday, July 30, 2019

Eyes


We'now learned a whole lot about the mouth, from teeth to tastebuds to Tonsils!

Let's start learning about the human Eyes.

The eyes give people the ability to take in light and turn it into shapes and figures that our brain can understand, and help us see.

Human eyes can see about 10 million colors, they can work together as two eyes to tell how close or far away something is, and can see things from specs of dirt on the ground to stars in the sky millions of miles away.


(from: wikipedia - human eye)


Kid Facts - Blast from the past: Hypodontia

Tuesday, July 23, 2019

Tonsils


We just learned about the Parotid Gland.

Another part of the mouth is the Tonsils.

Usually when people talk about tonsils they mean the two lumps at the back of the throat.
There is one on the left and one on the right.

The big long name for these is the palatine tonsils or faucial tonsils.

There are actually three types of tonsils:
- Palatine tonsils - At the back of the throat
- Tubal tonsils - Behind the throat and almost back by the ear
- Adenoids, also called the pharyngeal tonsil or nasopharyngeal tonsil - Up the back of the throat and behind the nose

These tonsils have special tissues in them that help fight against sickness and germs.


(from: wikipedia - palatine tonsil)



(from: wikipedia - tobal tonsil)



(from: wikipedia - adenoid)


Kid Facts - Blast from the past: Supernumary Teeth

Tuesday, July 16, 2019

Parotid Gland


We just learned about the Labial Commissure of the Mouth where your upper and lower lips meet.

Another part of the mouth is the Parotid Gland.

This is the part of the body that makes saliva or spit and sends it out to the parts of the mouth that need it.


(from: wikipedia - parotid glad)


Kid Facts - Blast from the past: Mouth - Wisdom Tooth

Tuesday, July 9, 2019

Labial Commissure of the Mouth


We just learned about the Frenulum of the Lower Lip.

Another part of the mouth is the Labial Commissure of the Mouth.

This is a big long name that really just means the corner of your mouth where your upper and lower lips meet.

The word labial means lips, and commissure means joining.


(from: wikipedia - labial commissure of mouth)


Kid Facts - Blast from the past: Maxillary Second Molar

Tuesday, July 2, 2019

Frenulum of Lower Lip


We just learned about the White Roll at the top of the upper lip.

Another part of the mouth is the Frenulum of Lower Lip.

We learned before about the little piece of skin under the tongue called the frenulum.
It is not the only thing called a frenulum in the body though!

Another frenulum is down at the bottom middle of the inside of the lower lip, right where it meets the gums.
If you put your tongue down there you can usually feel a little piece of skin there.


(from: wikipedia - frenulum of lower lip)


Kid Facts - Blast from the past: Maxillary First Molar

Tuesday, June 25, 2019

White Roll


We just learned about the bumpy spot on the upper lip called the Philtrum.

Another part of the mouth is the White Roll.

Right above where the lip changes from pink to normal skin color, there is a line where it is lighter than the rest of the skin on the face.
For a light skinned person this is almost white, so it is called the white roll.
For a dark skinned person it won't be white, but it will be lighter than the rest of the skin on the face.

The white roll shows up more for young people, and as people get older it gets less white and sticks out less.
Sometimes people will go get plastic surgery to make it stick out more to make themselves look young again.


(from: wikipedia - white roll)


Kid Facts - Blast from the past: Maxillary Second Preomlar

Tuesday, June 18, 2019

Philtrum


We just learned about the Vermillion Border no the top of the lip.

Another part of the mouth is the Philtrum.

The philtrum is on the outside of the upper lip, right in the middle, going from the nose to the lip.

For most people this is a little indent or groove.
Some scientists think that this part of the lip used to be used to try and help guide smells up to the nose, back when we used to have to hunt or smell our food more to see if it was ok to eat.


(from: wikipedia - philtrum)


Kid Facts - Blast from the past: Maxillary First Premolar

Tuesday, June 11, 2019

Vermillion Border


We just learned about the line of the top of the lips called the Cupid's Bow.

Another part of the lip is the Vermillion Border.

Vermillion is actually a word that means red.
The vermillion border is the place where the lip skin changes from pink or red to the color of the rest of the face.

(from: wikipedia - vermillion Border)


Kid Facts - Blast from the past: Maxillary Canine

Tuesday, June 4, 2019

Cupid's Bow


We just learned about the Lips that help us eat and protect our mouth.

Another part of the mouth is the Cupid's Bow.

This is the shape of the line on the upper lip, that is shaped kind of like a bow for a bow and arrow.

Because it is shaped like a bow, and because people use lips for kissing, this part of the mouth got the nickname cupid's bow.


(from: wikipedia - cupid's bow)


Kid Facts - Blast from the past: Maxillary Lateral Incisor

Tuesday, May 28, 2019

Lips


We just learned about the part on the roof of the mouth called the Palatine Raphe.

Another part of the mouth is the Lips.
The big long names for the upper and lower lips are the Labium superius oris and "Labium inferius oris.
Labium means lip, superius and inferius are for upper and lower, and then oris is for the face, near the mouth.

The lips have no sweat glands, and can not grow hair.
Skin on the lips is softer than the face skin.

Most of the skin on the face has 16 layers, but the skin on the lips only has about 4 layers.
It also doesn't have the same coloring cells as the face does, so you can see right through the top skin and see the blood vessels underneath it.
That's why the lips are pink or red, because of the blood vessels underneath.

There are a whole bunch of muscles for the lips that we learned about a while ago:
Upper lip: levator labii superioris and levator anguli oris
Lower lip: depressor anguli oris, depressor labii inferioris, mentalis

Lips are used to open and close for food, to help make sounds when we talk, and also to kiss!
Because lips are on the human face, people try very hard to make their lips look nice, sometimes using makeup or lip gloss, and sometimes even having surgery to make their lips look bigger.

The lips are very important to keep healthy, which is why there are things like lip balm to protect them.
Healthy lips help protect the mouth from the outside, and keep a healthy mouth!


(from: wikipedia - lip)


Kid Facts - Blast from the past: Central Incisors

Tuesday, May 21, 2019

Palatine Raphe


We just learned about the bump of skin behind your front teeth called the Incisive Papilla.

Another part of the mouth is the Palatine Raphe.

This is the bump on the roof of the mouth in the middle that goes from front to back.
Some people have a big bump that sticks out, but for others it is just a little bump.


(from: wikipedia - palatine raphe)


Kid Facts - Blast from the past: Baby Teeth

Tuesday, May 14, 2019

Incisive Papilla


We just learned about the ridges on the roof of the mouth called the Palatal Rugae.

Another part of the inside of the mouth is the Incisive Papilla.

Right behind the top two front teeth called incisors is a little bump of skin that sticks down.
A bump in mouth medical words is usually called a "papilla" and its right behind the incisors so it's called the incisive papilla.
It's usually right in the middle, and you can feel it with your tongue right behind the teeth.


(from: wikipedia - incisor)


Kid Facts - Blast from the past: Teeth

Tuesday, May 7, 2019

Palatal Rugae


We just learned about the soft part on the roof of the mouth called the Soft Palate.

Another part of the top of the mouth is the Palatal Rugae.

These are the little ridges on the top of the mouth behind the teeth.
Because of the way they are shaped, they help move food toward the back of the mouth.

Palatal means it is on the hard palate in the mouth, and the word rugae (sounds like roo-gah-ee) means ridges.


(from: wikipedia - rugae)


Kid Facts - Blast from the past: Human Mouth

Tuesday, April 30, 2019

Soft Palate


We just learned about the Hard Palate on the roof of the mouth.

Another part of the mouth is the Soft Palate.

This is on the roof of your mouth, right at the back of your throat.
You can feel that this is soft, and under the skin are five different muscles that help you swallow.

They all have big long names, but they make sense if you understand what they are doing:

- Levator & Tensor veli palatini - Lift and tightens up the palate to block the back of the throat so food doesn't go up to your nose

- Palatoglossus & Palatopharyngeus - Use the palate muscles to pull on the back of your throat (pharynx) to close up the place where you breathe (trachea) and make sure the food goes down the esophagus where it's supposed to

- Musculus uvulae - Moves the uvula to help block food from going up your nose


(from: wikipedia - soft palate)


Kid Facts - Blast from the past: Interphalangeal Ligaments

Tuesday, April 23, 2019

Hard Palate


We just learned about the Sublingual Caruncle.

Another part of the mouth is the Hard Palate.

This is the roof of your mouth, right over your tongue.
You can push up on it with your tongue, and it is hard because there is bone right there underneath the skin.


(from: wikipedia - hard palate)


Kid Facts - Blast from the past: Metatarsal Ligaments

Tuesday, April 16, 2019

Sublingual Caruncle


We just learned about the Fimbriated Fold.

Another part of the mouth is the Sublingual Caruncle.

Sublingual means "underneath the tongue", and caruncle means some skin sticking out like a bump.

Remember the frenulum is the piece of skin under the tongue that holds it in place.
On each side of the frenulum is a little bump.
That bump is the sublingual caruncle, and it is where most of the saliva or spit in your mouth comes out of.


(from: wikipedia - submandibular gland)


Kid Facts - Blast from the past: Distal Intertarsal Ligaments

Tuesday, April 9, 2019

Fimbriated Fold


We just learned about the Frenulum.

Another part of the mouth is the Fimbriated Fold of the tongue, also sometimes called the Plica Fimbriata.
The word fimbria comes from the latin word for "fringe"
These are two folds of skin on the bottom of the tongue, going front to back on either side of the frenulum.

For most people these just look like lines with bumps going down the tongue, but for some people there are small pieces of skin sticking out longer.


(from: wikipedia - fimbriated fold of tongue)


Kid Facts - Blast from the past: Transverse Tarsal Ligaments

Tuesday, April 2, 2019

Frenulum


We just learned about the Foramen Cecum.

Another part of the mouth is the Frenulum.

This is the piece of skin underneath the tongue that helps hold your tongue in place.


(from: wikipedia - frenulum of tongue)


Kid Facts - Blast from the past: Talocalcaneal Ligaments

Tuesday, March 26, 2019

Foramen Cecum


We just learned about the Sulcus Terminus.

Another part of the tongue is the Foramen Cecum.

Remember the median sulcus is the line that goes down the middle of your tongue.
At the back of your tongue, and at the end of that line is the foramen cecum.

We also learned that the sulcus terminus is a v shape at the back of the tongue.
In the middle of the v shape is the foramen cecum.

So right where the "median sulcus" line and "sulcus terminus" v shape meet is the "foramen cecum" point.


(from: wikipedia - tongue)


Kid Facts - Blast from the past: Talocrural and Ankle Ligaments

Tuesday, March 19, 2019

Sulcus Terminus


We just learned about the Median Sulcus.

Another part of the human tongue is the Sulcus Terminus.

This is all the way on the back of the tongue.
Right before the back of the throat, some of the skin in the tongue makes a V-shape,
that comes to a point in the middle right at the end of the median sulcus before going down the throat.

This is called the sulcus terminus.


(from: wikipedia - tongue)


Kid Facts - Blast from the past: Inferior Tibiofibular Joint