Circulatory System

The heart and circulatory system which also called the cardiovascular system make up the network that delivers blood to the body's tissues. With each heartbeat, blood is sent all over the body, carrying oxygen and nutrients to all of our cells. 

Every day, about 5 liters of blood in your body travel many times through about 60,000 miles of blood vessels, it links the cells to all of the organs systems and body parts. From the heart, to our arteries, to thin capillaries, the cardiovascular system is our body's lifeline. 

The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries. Our bodies actually have two circulatory systems: The pulmonary circuit is a short loop from the heart to the lungs and back again, and the systemic circuit that is the system we usually think of as our circulatory system, sends blood from the heart to all the other parts of our bodies and back again. The double circulation of blood is when the blood goes from the heart then to the lungs then back again to the heart and finally circulates all over the body.

http://www.globalclassroom.org/heart2a.jpghttp://ffden-2.phys.uaf.edu/104_2012_web_projects/Danielle_Woodard/intro.html

"TeensHealth." Heart and Circulatory System. N.p., n.d. Web. 30 Apr. 2013. <http://kidshealth.org/teen/your_body/body_basics/heart.html>.

By: Annisha

The Three Energy System

The three energy systems is very important for athletes because with out it, the athletes will not be able to perform the daily activities for the sports they join.

http://www.promptdoc.com/wp-content/uploads/2012/01/energy-system.jpg

By Annisha

Drugs/ Horomones used by swimmers

The horomone that is used by swimmers is Human Growth Horomone (hGH)

It is likely that hGH would have little effect on swimming performance even if used for recovery enhancement. Swimming is a sport that embraces chronic overtraining and even further training could increase the occurrence of over-use injuries such as the swimmer's shoulder. It is wrong that hGH will provide benefits for competitive swimming performances.

The absence of established research in sports does not allow the description of practical symptoms indicating the use of this substance.

Given the minimal benefits and the considerable medical risks, hGH is not a drug worth considering for use in swimming if cheating is used for improvement.

Benefits:

• It is good for recovery especially when the swimmer has injuries because of over-training.
• It helps the swimming performance

Limitations:

• It does not provide benefits for competitive swimming performances
• There are considerable medical risks

 "Drugs in Sport." Drugs in Sport. N.p., n.d. Web. 11 Apr. 2013. <http://coachsci.sdsu.edu/csa/vol56/fourdrug.htm>.

Circulatory system Introduction

Three main structure Structure in human circulatory system:
1. Heart

he heart acts like a pump

has 4 chambers and valves that connect the chambers

They are: right atrium, left atrium, right ventricle, left ventricle

http://static.ddmcdn.com/gif/depression-cause-heart-attack-1.jpg


2. Lungs

http://www.odec.ca/projects/2005/thog5n0/public_html/lungs.jpeg

3. Brain

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The main function of Human circulatory (Cardio vascular system) is transporting blood, oxygen, carbon dioxide and other necessary things to and from every cell in the body.

Blood circulation( starting point ):

From the vena cava (the vena cava which is best known for the biggest vein in the heart) the deoxygenated blood travels through the first 2 chambers, which is the right atrium and then after that it will go to the right ventricle. Then it will go out from the chambers which it makes it way through the pulmonary arteries and it goes to the lungs to pick up oxygen, which then makes the blood oxygenated. Back from the lungs into the pulmonary veins, it then go to the left atrium and then to the left ventricle. Then the blood gets released through the aorta. The aorta  is the biggest artery in the circulatory system and spreads it through all parts of the whole body to provide cells and other things with new, fresh and clean blood.

http://static7.depositphotos.com/1164636/710/v/950/depositphotos_7108933-Circulatory-system.jpg

By: Mourezky 8E

Muscular System

There are 3 types of muscle tissue in your body, these 3 are:

Smooth Muscle

Cardiac Muscle 

Skeletal Muscle 

Smooth Muscle:

The smooth muscles are found in our organs, and contracts to help move substances like food through your organs. Smooth muscles are controlled unconsciously, therefore they are classified as groups of involuntary muscles.


Cardiac Muscle:

The cardiac muscle are only founded in the heart. Unlike other types of muscle, cardiac muscle never gets tired. It works automatically and constantly without ever pausing to rest. Cardiac muscle contracts to squeeze blood out of your heart, and relaxes to fill your heart with blood. Cardiac muscle is classified as an involuntary muscle.

Smooth Muscle:

These set of muscles are the only one that is a voluntary muscles in our human body. It is moved consciously. Every physical action a human body does requires skeletal muscles. Skeletal Muscles contracts get shorter, and pull on tendons. Tendons  are attached to bones. Our muscles that move in our bones work in pairs. One pulls a bone one way and ithe other makes an opposite move. They are antagonistic. Antagonistic means that the muscles they work against each other. When one contracts, the other relaxes. 

http://www.nsbri.org/humanphysspace/focus5/f5-190.jpg

A photo of locations where the smooth muscle, cardiac muscle and skeletal muscle located.

By: Mourezky 8E

3 Types of ATP-CP program

There are 3 energy systems that your body uses as a supply for ATP. ATP stands for adenosine triphosphate, which depletes into ADP (adenosine diphosphate) when energy is used up, it then reforms back into ATP when phosphate is giving to it. 

There are 3 types of energy systems

1. ATP-CP Systems
2. Anaerobic Lactic acids system
3. Aerobic system

The ATP-CP systems is the fastest tap supplier. It does not require oxygen to occur. It also last the shortest for the energy. The ATP-CP system uses stored creatine in the body so that it becomes active. The ATP-CP process occurs in cell cytoplasm. The ATP-CP system causes muscle soreness when doing an exercise or training or match. The ATP-CP supply ATP arrives immediately after activated and last only for the first 20 seconds when doing and starting an exercise.

The Anaerobic Lactic acid energy system produces lactic acids. It is a medium ATP supplier, not many not less. The Anaerobic Lactic acid energy system also occurs in the cell cytoplasm. It also causes muscle soreness. The Anaerobic Lactic acid energy produces 2ATP per one glucose. The Anaerobic Lactic acid system does not require Oxygen to make glucose and this Anaerobic Lactic acid energy system Supply arrives after 20 seconds of exercise and last until 3 minutes.

Aerobic system last the longest for the source of exercising energy. This ATP supply arrives after 3 minutes activities and can last to hours. The aerobic system produces 36-38 ATPs per glucose molecule. It needs Oxygen to occur and it is the slowest ATP supplier.
By: Mourezky