SC.5.L.14.1 Identify the organs in the human body and describe their functions, including the skin, brain, heart, lungs, stomach, liver, intestines, pancreas, muscles and skeleton, reproductive organs, kidneys, bladder, and sensory organs.


Vocabulary:

1. Skin- The human's largest organ,which covers the outside of the body.
2. Organism- A living thing.
3. Organ system-A group of organs that work together to do a job for the body
4. Organ- A body part that is made of smaller parts that work together to do a certain job.
5. Brain- The organ in the body that processes information.
6. Bones- Hard organs that have spongy layers inside and that may help support the body or protect other organs.
7. Muscles- Organs made up of bundles of long fibers that can contract to produce movement in living things.
8. Lungs- The largest organs in the respiratory system that bring oxygen from the air into the body and release carbon dioxide.
9. Heart- A muscular organ that pumps blood through the rest of the circulatory system.
10. Exoskeleton- A hard covering, found in many types of animals, that supports and protects the body.
11. Epidermis- top layer of skin epi means top or above.


Body Systems:

Respiratory:
Organs: Lungs, Heart, Trachea, Bronchi, Bronchioles, Alveoil
Function: You breathe in air through your nose or your mouth, the air travels down a tube in your throat called the Trachea. The Trachea splits into two smaller tube called Bronchi. The Bronchi enter the lungs and branches into a various amount of Bronchioles. At the end of every Bronchioles there are small sacs called Alveoil. As you breathe out you realease carbon dioxide into the air. For example: When you have Bronchitis or Asthma your Bronchi are constricted and make it harder to breathe.
Works With: Circulatory System
Bronchitis
Bronchitis







Circulatory:
Organs: Heart, Arteries, Veins, Capillaries, Red Blood Cells, White Blood Cells
Function: Your heart contracts in two phases. When the upper part of your heart is relaxed, it fills with blood. Then the upper part contracts and the bottom relaxes. When it relaxes the lower part fills with blood. The lower part squeezes the blood out of the heart and into vessels. Which are all over the body. There are three main types of blood cells- red cells, white cells, and platelets. Red Blood Cells carry oxygen throughout the body. White blood cells help fight infections. Platelets stop bleeding by sticking together. Arteries are blood vessels that carry blood away from your heart. Veins are blood vessels that bring blood back to the heart. Capillaries are vessels that are very tiny. Nutrients and oxygen can pass through capillary walls.
Works With: Respiratory System
external image white-blood-cell-amungst-red.jpg
external image C0089194-Activated_platelets,_artwork-SPL.jpg


Digestive:
Organs: Esophagus, Stomach, Small Intestine, Large Intestine, Liver, and the Pancreas.
Function: As the food travels down your esophagus it is broken into smaller pieces. At the bottom of your esophagus there is a round muscle. When you swallow his muscle relaxes and lets food into your stomach. Your stomach produces liquids to help digest your food. Your stomach squeezes the partly digested food into a winding tube called your small intestine. Your liver and pancreas are organs that send chemicals to your small intestine to help break up food. After the small intestine it ventures down into the large intestine. The waste stays here untill it is ready to leave your body.
Works With: The Urinary System.
external image 340px-Digestive_system_diagram_edit.svg.png

Urinary:
Organs: Kidneys, Bladder, Ureters, and the Urethra.
Function: Your Kidneys remove waste from your blood. They also make sure your blood doesn't have too much or too little salt in it. After your Kidneys filter your blood. The waste or your Urine collects in long tubes called Ureters. These take your urine to your Bladder. Your Bladder stores the waste and releases it out of your body. Your Bladder can stretch up like a balloon. The Urethra takes the waste from the Bladder and outside of the body.
Works With: Digestive System.
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Nervous:
Organs: Brain, Nerve Cells, Spinal Chord,
Function: With your Nervous System your can sense your surroundings and communicate. Chains of long Nerve Cells make up Nerves. They carry information to your brain. Your Spinal Chord runs along your backbone. Without your Spinal Chord your brain wouldn't get signals to maybe take the pot off the stove or go answer the door. When you are paralyzed your Spinal Chord is broken.
Works With: Sensory Organs.
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Sensory Organs:
1. Sight: Light enters your eye through a hole called the Pupil, passes through the lens and hits the back of your eye. This is called the Retina. The Nerves in your Retina send signals to the Brain, and we see.

2. Hearing: The part of the ear you see is called the outer ear. The outer ear brings sound into the middle ear. In your middle ear the sound causes your eardrum to vibrate. Some bones pass vibrations to the inner ear. They are called the Hammer, Anvil, Stirrup. Here A liquid filled structure called the Chochlea passes vibration to nerves. The nerves send signals to the Brain and we hear.

3. Smell: When you inhale air travels through your Nose. Inside your nose are structures that sense chemicals in the air you breathe in. They are attached to nerve cells in the olfactory bulb that send messages to the Brain. We then smell.

4. Taste: Bumps on your tongue are called Taste Buds. They sense chemicals in the food you eat. Taste buds are attached to nerves that send messages to the Brain. We then taste.

Reproductive:
Organs: Women: Ovaries, Men: Testes, and the Embryo
Function: When the Ovaries and the Testes join they make an Embryo. The Embryo develops in the mother for 9 months it is then born.




Rescources
Bronchitis
Nervous System
Urinary System
Digestive System
Platelets
White and Red Blood Cells
Florida Science Fusion Text Book. Houghton Mifflin Harcourt. Pages 336-381 2011