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6. where does the blood enter the heart from

  • from the right side
  • neither
  • from the left and right side
  • from the left side

7. what is the tranchea

  • a chest cavity
  • a rigid tube supported by cartilaginous rings. Diameter is controlled by smooth muscle action.
  • a small tube that leads to your lungs and helps you to respire
  • all of the 3 above

8. what do the capillaries do

  • they are the smallest and most numerous blood vessels, also there are thin walls which allow efficent exchange of materials
  • they are bigger and more important than veins and arteries and are our main source from blood
  • they are in more places that can easily bleed like bladder area and other areas
  • all of the above

9. what happens if we didnt have blood

  • without the tissues you would die within 2 seconds
  • without the tissues we would be starved of oxygen, nutrients, while waste products would gather.
  • you would be fine
  • It is essential and you would close up and suffocate without it.

10. what is the bloodstream loop

  • the bloody loop
  • the closed circulatory loop
  • lungs loop
  • bloodstream loop

11. Which muscular pump is located in the upper chest

  • Thigh
  • Leg
  • Heart
  • Arm

12. what do arteries do

  • all the one named
  • only the top 2
  • carry blood under high pressure, thicker walls, more elastic, smoothier muscle
  • thinner walls non-return values and is small tunnell for the blood to travel in

13. what is the bronchi

  • from the windpipe it goes to the stomach for indegestion
  • none of these 3
  • branch from the trachea into the left and right lungs.Share similar cartilaginous and smooth muscle properties to the trachea.
  • little air sacs that can help you breath and respire properly and at a steady pace

14. what do veins do

  • Carry blood under low pressure, thinner walls, less elastic, less smooth muscle and non-return valves
  • only 3 and 4
  • nothing just lots of small arteries thatdo the same thing
  • they pass blood the the heart

15. what is the Pharynx

  • none
  • the region on your heart
  • the region at the back of the throat where the passages of the nose and mouth meet, and above where the digestive and respiratory passages separate.
  • cartilaginous and smooth muscle

16. how many chambers do the heart consent of

  • 3 , 1 big one and 1 small one and 1 medium sized one
  • 4 , 2 smaller chambers and 2 bigger and lower chambers
  • 2 , 1 smaller one and 1 bigger one
  • 4 , both the same