Science

Nervous system consists of?

• Spinal cord & nerves

• Brain and spinal cord

• Brain, spinal cord & nerves

• Only brain

Nervous system has ________ main parts

• Two

• Three

• Four

• One

Brain cordinate to all body parts through which system?

• Circulatory system

• Nervous system

• Respiratory system

• Excretry system

Left ventricle contains which type of blood?

• Low in oxygen

• Oxygen - rich blood

• Blood with 50% oxygen

• Blood with no oxygen

During fast running body needs more oxygen so heart pumps:

• Harder

• Slow

• Maximum

• Minimum

In lungs which gas added into blood to make it oxygenated?

• Carbon dioxide

• Flurine

• Oxygen

• Both oxygen and carbon dioxide

How many blood vessels are present in an human adult?

• 150,00

• 150,0000

• 150, 000

• 150

Uper chambers of the heart are?

• Right and left ventricle

• Right and left atrium

• Only right ventricle

• Only right atrium

_________________ link between vein and arteries.

A _____________ is a fibre that carries impulses through the body.