Two Hearts that beat as one: Questions & ANSWERS

The questions for this in class assignment are below - followed by the answers.

Two Hearts that beat as one: Video                                    NAME:

1.     The human heart is actually ____________ pumps.

2.     One pump pushes blood to the _________________ to exchange __________________  ____________________ for ________________________________. This exchange is called ________________________________________.

3.     The other pump pushes blood to all other parts of the body to supply it with ____________________________________ and _________________________________nutrients and help remove __________________________________________.

4.     Within _______________________________ weeks of conception the cells that make up the human heart have started to beat in the womb.

5.     The rate and strength of the heart’s beating sends blood to all parts of the body at the correct __________________________ and _____________________________.

6.     The journey of blood around the body takes about ________________________________ when we are at rest.

7.     As blood travels through the capillaries in a muscle it off loads _________________________ and uploads _______________________  ___________________________.

8.     The blood enters the heart by way of ______________________________ into the __________________________________. It is then pushed into the _______________________________ where it is pumped out by way of ______________________________________.

9.     The aorta is the ____________________________________ blood vessel in the body.

10. There are 3 main components to the heart.

11. The valves: There are __________________ of them. They make sure the blood flows in the __________________________direction by allowing blood to move in only one direction. The closing of the valves causes the ____________________________ we associate with the heart ‘beating’ by causing waves of _______________________________ in the blood.

12. The heart muscle: provides __________________________ to move the blood throughout the body. If supplied with oxygenated and food, heart muscle cells with continue to ___________________________ even if separated from the heart.

13. The pacemaker: a small node of tissue in the top of the heart that ____________________________________________ the rhythmic contractions of the heart, starting with the _________________________ chambers and then followed by the _________________________________ chambers.

14. The fight or flight response starts in the ________________________________. When a person perceives a situation to be dangerous or exciting, it sends a message to the _______________________________ glands just above the ______________________________. They release ______________________________, a hormone that _____________________  ___________ the heart, __________________________ blood vessels and _________________________ air passages. This prepares the body for action by increasing the supply of _________________________ and ___________________________ to all parts of the body.

15. Opinion? Can a person become addicted to adrenalin? Explain.

16. What are the dangers or advantages of seeking an “adrenalin rush”?

17. The average heart rate when we are under little strain is __________ beats per minute.

18. The Colossus rollercoaster at Magic Mountain is 125 feet tall. It’s maximum speed it 62 miles an hour. What did they say the G- force a person would feel at the bottom of the highest hill? _________________________

19.   The Behemoth at Wonderland goes faster and Flight Deck at Wonderland has more G-force.

20. We can train our heart to increase its output by ______________________________ times.

21. The more we __________________________ muscle fiber the more strongly they _______________________.

22. A well-trained athlete’s heart can be ____________________% thicker than the average person’s and it can expel ___________________% more blood when it beats.

23. A well-trained athlete’s heart can deliver the ___________________  ______________________ of blood with ______________________________ beats. So athlete’s hearts beat at rates as low as 40 beats per minute.

24. Coronary Arteries supply the ____________________________ with fresh oxygenated blood.

25. Fats in the blood or an increased tendency for blood to clot, increases the chances of _________________________________________.

Two Hearts beat as one                        ANSWERS

1. 2 pumps
2. 2. lungs   carbon dioxide   oxygen   respiration
3. oxygen and nutrients        waste
4.      6 – 7 weeks
5. pressure and speed
6. one minute
7. download oxygen    upload carbon dioxide
8. veins into the atrium       ventricles      pumped out by way of the arteries
9. widest
10.  3 main components to the heart
11. 4 valves     flows in the correct direction    causes the sound    waves of turbulence
12. force or power      contract or ‘beat’
13. coordinates     top     bottom
14. brain    adrenal glands      above the kidneys         adrenaline hormone 

 -speeds up the heart  -constricts blood vessels  -dilates air passages  -oxygen & nutrients

15. ???
16. ???
17.    70 beats per minute
18.    3 – G                        3 times normal gravity so if you weigh 100 pounds at the bottom you will feel as if you suddenly weight 300 pounds.
19. No answers just FYI
20.     4 – 5 times
21. stretch    contract
22.      30%            30%
23. same amount      less beats
24. heart
25. blockage