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Human Body

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AJ Arandia

on 22 April 2015

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Transcript of Human Body

"Breathing" Process
System Diagrams
Fun Facts
Circulatory System
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The circulatory system's main function is to transfer
oxygen all throughout the body.
transports oxygen and nutrients to cells
takes away carbon dioxide and other wastes

Air enters through the nose in humans and some animals.
Then passes the pharynx and larynx into the trachea.
Trachea splits to form two bronchi, one for each lung.
Each bronchus divides into bronchioles inside lungs.
Bronchioles end in tiny sacs called alveoli.
-oxygen diffuses through alveoli wall into the blood.
Respiratory System
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Controls the inhalation of oxygen and the exhalation of carbon dioxide
Tracing the Path of Food
1. Mouth: chewing and chemical digestion begin. Amylase in saliva breaks down carbohydrates.
2. Food enters pharynx, the passage to the esophagus.
3. Esophagus brings food from pharynx to stomach.
4. Stomach stores and breaks down foods with acids and enzymes.
5. The small intestine absorbs nutrients into bloodstream.
3 Phases of Gas Exchange
Digestive System
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AJ Arandia P.3
Breathing: oxygen enters lungs, carbon dioxide leaves
Oxygen: moved throughout body by heart and blood (CO2 is removed)
Cells take up oxygen from blood, then sends back CO2

Human Body Systems

The digestive system's main purpose is to break down food into energy

Nervous System

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Works to sense our environment, interpret information and create responses. Also enables us to learn, remember, perceive and move.
Two Main Divisions:
Central Nervous System (CNS): consists of brain and spinal cord
Peripheral Nervous System (PNS): consists of nerves


Key organ in system, works to propel blood throughout the entire body.
Circulatory System
Carries deoxygenat-ed blood back to the heart and lungs to get oxygen.
Carries oxygenated blood away
from the heart and to the body.
Carries blood away from the body and exchange nutrients, waste, and oxygen with tissues.
Respiratory System
Food is broken down to glucose.
Glucose is used to make ATP

4 Stages of Digestion:

: eating
: breaks down polymers into monomer
: once absorbed, monomers go into blood and become ATP
: getting rid of waste

Nervous System
Digestive System
Large Intestine
Small Intestine
Conveys food from the pharynx to the stomach.
Mouth chews on food, chemical digestion begins. Saliva is used to break down carbohydrates.
Produces bile that digests fat.
Absorbs water and passes undigested foods into excretory system.
Absorbs nutrients into blood stream.
Produces digestive enzymes and balances acids.
Stores and breaks down foods with acids and enzymes.
Vocal Cords
Components of Blood and Plasma
Red blood cells have hemoglobin, it enables the transport of oxygen.
White Blood Cells
Red Blood Cells
White blood cells help to fight infections and cancer.
Platelets respond when blood vessels are damaged or cut.
-triggers the formations of clots to plug leaks
Mostly water, contains nutrients and minerals
Path of Blood Through Body
A person's blood vessels could wrap around the planet approximately 2.5 times!
A blue whale's heart is about the same size as a compact car, and yet it only beats five times per minute!
In space, the heart enlarges to adjust due to the increase of blood flow surrounding the organ.
In an average life span, the heart pumps enough blood to fill 100 king-sized swimming pools!
Circulatory System
Muscular System: provides the muscles with oxygen and nutrients by transporting these materials to it so they can function properly.
Respiratory: works together and supplies our bodies with oxygen and nutrients allowing us to breathe with our lungs.
Nervous System: the circulatory system helps to keep blood flow through the brain helping us to think move and feel, with the nervous system.
Path of a Nervous Impulse
Folds over so that food and liquid enter the esophagus and not the trachea.
Works with the voice box, is used to produce sound.
Houses the vocal cords and manipulates pitch and volume.
Allows air to enter your lungs in order to breathe.
Helps oxygen from air we breathe enter red blood cells, also carbon dioxide is released when we breathe out.
Enlarges the lungs when air is breathed in.
Spinal Cord
When a nerve gets a stimulus
Ions pass through the plasma membrane, changing it's voltage
Causes nerve signal, or action potential to be generated
The left side of human brain controls the right side of the body and the right side of the brain controls the left side of the body.
There are more nerve cells in our body than there are stars in the Milky Way!
If you lined up all the neurons in the brain together, it would total 600 miles!
Before a new born baby is born, they lose about half of their nerve cells.
Cells that are used to transmit nervous impulses.
Send messages to cells and other tissues from other organ systems.
Sends signals to the brain and to the rest of the body, also controls multiple reflexes.
Interprets information sent here by eyes, ears and other sensory organs.
The human digestive system contains the same enzymes found in laundry detergents.
Stomach rumbling can happen at any time, not just when you're hungry.
Our bodies produce up to 1 to 3 liters of saliva a day.
The average human being has over 400 different species of bacteria in their colon.
The lungs are the only organs that can float on water.
Horses only breathe through their nostrils, unlike humans and other mammals.
The highest recorded "sneeze speed" is 165 km per hour.
The right lung is slightly larger than the left.
Arteries and Veins:
Arteries move the oxygenated blood away from the heart and to the body.
Veins move the deoxygenated blood from the body back to the heart and lungs to get oxygen.
Respiratory System
Circulatory System: gives the lungs nutrients in order to keep clean, then the respiratory takes in air to keep the circulatory system running.
Digestive System: as food goes down the throat, it enters the digestive system where it gives our body nutrients. In return, the respiratory system supplies the digestive with oxygen.
Nervous System: helps the respiratory know when you are breathing and are in control.
Digestive System
Circulatory System: works together to get nutrients into our bodies.
Integumentary System: this system takes in Vitamin D from the Sun. The Vitamin D then helps to absorb the calcium in foods.
Excretory System: the liver receives blood from the intestine and filters out waste. Then waste is released through the intestines.
Nervous System
Endocrine System: works closely with the brain and nervous system to create enzymes and specific hormones.
Integumentary System: the nerves from the nervous system control the muscles connected to hair follicles.
Skeletal System: sensory receptors in joints send messages to the brain about body position.
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