How many times does our heart beats a day ?
100000
10000
1000
10
What can be felt when we touch the back of our wrist?
muscles
Pulse
Bones
Heart
Which of the following are found in millions inside our lungs?
Air sacs
Nerves
Vessels
Pulses
What is rib cage made of ?
Muscles
Which air do we breathe in ?
Oxygen
Hydrogen
Nitrogen
Carbon dioxide
Which is the instrument used by the doctors to listen to the heart beat of patients ?
Stethoscope
Telescope
Thermometer
Ultra sounds
What is the journey of blood around the human body known as ?
Blood circulation
Respiration
Germination
Inhalation
Which system in our body helps us to carry out the process of respiration ?
Circulatory system
Respiratory system
Reproductive system
Muscular system
What is the process of breathing in air called ?
Exhalation
Circulation
Which of the following helps us to breathe?
Lungs
Rib cage
