Can We Control It? Science Lesson 7. Did you know…

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Presentation transcript:

Can We Control It? Science Lesson 7

Did you know…

Which leads me to the point of this lesson… Stand up. Sneeze. Walk Get goosebumps on your arm. Raise a hand. Make your blood stop pumping. Make your stomach growl. Can you….

Stand up Sneeze Walk Get goosebumps on your arm Raise a hand Make your blood stop pumping Make your stomach growl CAN Control Cant Control

Voluntary Voluntary vs. Involuntary Muscles

Involuntary Voluntary vs. Involuntary Muscles

The heart is a bag of muscle that squeezes itself about once every second, sending blood flowing throughout the body.

Your heart has 2 sides: left & right, separated by a thick, muscular wall. The heart contracts & relaxes, which means it is a ___________________. When your cardiac muscle contracts, it squeezes blood out of the heart through the arteries. When it relaxes, the veins fill youre your heart with more blood.

1.Hold your left hand in front of you, palm up. 2.Place first 3 fingertips of your right hand on the inside of your left wrist in the groove below the base of the thumb. 3.Use the timer/clock to count the number of times your heart beats in one minute. Record result in Science booklet. 4.Run in place for about one minute. 5.Repeat steps to take pulse again. 6.Record the results. 7.Explain what you observed in your booklet.