The heart

THE HEART

Your heart is really a muscle. It's located a little to the left of the middle of your chest, and it's about the size of your fist.

There are lots of muscles all over your body — in your arms, in your legs, in your back...

The heart sends blood around your body. The blood provides your body with the oxygen and nutrients it needs. It also carries away waste.

Your heart is like a pump, or two pumps in one.

• The right side of your heart receives blood from the body and pumps it to the lungs.
• The left side of the heart does the exact opposite: It receives blood from the lungs and pumps it out to the body.
  
  

  

  
  

*THE CIRCULATION:

-The blood vessels called ARTERIES carry blood away from the heart.

-The blood vessels called VEINS carry blood back to the heart.

*THE SOUND OF THE HEART:LUB-DUB!

-The valves mitral (left) and tricuspid(right) are between atria and ventricle.

-The valves aortic (left) and pulmonary(right) are in the ventricles.

-The first sound happens when the mitral and tricuspid valves close.

-The next sound happens when the aortic and pulmonary valves close.

Vídeo sobre el corazón:

Sístole y diástole.Sonidos del corazón

*THE PULSE:

-You can find your pulse by lightly pressing on the skin anywhere there is a large artery running.

                     “Our heart is a muscle. It beats to pump

                     blood and its contents around the body”

                                             

FINGERS: Index and middle finger.

Count the beats for: . 

-15 seconds and multiply by 4 (Bpm)

-10seconds and multiply by 6                         You will get your
                                                               beat per minute, that's your

-6 seconds and multiply by 10                             HEART RATE 












La pirámide del ejercicio.
Imagen tomada de http://sincitapreviauniradio.blogspot.com.es/
 

ACTIVIDADES ON LINE

1.La toma de pulsaciones
2.El corazón:Actividades on line 
3.El sistema cardiovascular en el ejercicio 
4.El control de la actividad física mediante la toma de pulsaciones.

 
**Haz click en este enlace y profundizarás un poco más en el tema de la frecuencia cardiaca:
Frecuencia cardiaca

HOMEWORK

Name: ________________________________ Group: ________

1.The right side of the heart pumps blood, where?

2.Why is the wall of the left ventricle thicker?

3.What is the purpose of the atrioventricular valves?

4.What causes the “dub” sound of the heart beat?

5.Where does blood go after it leaves the left atrium?

6. ¿Qué es la frecuencia cardiaca máxima o índice cardiaco máximo?

7. Si eres un chico y tu frecuencia cardiaca máxima es de 206 pulsaciones por minuto ,¿cuál es tu edad?

 8.¿Cuál sería la frecuencia cardiaca de una chica de 14 años?

9.¿Cuánto tiempo debemos tomar las pulsaciones? ¿Por qué?

10. ¿Con qué dedos y en qué zona debemos tomar las pulsaciones?