1. Cardiovascular Endurance
SWBAT: demonstrate knowledge of the cardiovascular system, cardiovascular fitness, and health factors by completing a diagram of the heart after completing a cardiovascular health and fitness PowerPoint

2. Bellwork: Label the heart to the best of your ability.1) 2) 3) 4) 5) 6) 7) 8) 9)
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3. Review Cardiovascular Fitness
The ability of the heart, blood vessels and respiratory system to supply oxygen and nutrients to the muscles during exercise.

4. The heart The heart is a muscle that pumps blood through the body
Oxygen is the body’s fuel. Muscles cannot work without oxygen. Oxygen is carried through the blood.
Blood vessels are tubes that carry blood throughout the body
Arteries are blood vessels that carries oxygenated blood away from the heart to the body
Veins are blood vessels that carry deoxygenated blood back to the heart from the body
Capillaries are where oxygenated and deoxygenated blood is exchanged

5. Heart Arteries Arterioles  Capillaries  Venules  Veins  Heart

8. Video time

9. Bellwork: Finish labeling your heart diagram then study it.
1)Aorta
2)Right Atrium
3) Right Ventricle
4)Right AV
5)Pulmonic Valve
6)Pulmonary Artery
7)Pulmonary Vein
8)Left Atrium
9)Left Ventricle
10)Superior Vena Cava
11)Inferior Vena Cava
12)Left AV

11. Finding your HR
Pulse: caused by the pressure of the blood on the artery wall
Measured in beats per minute BPM
Carotid artery: on your neck
Radial artery: on your wrist
Ways you can take your pulse:
Count beats for 6 seconds, then multiply by 10
Count beats for 15 seconds, then multiply by 4
Count beats for 30 seconds, then multiply by 2

12. Heart Rate Resting Heart Rate: taken while sitting or lying down
Most accurate time to take it is when you first wake up, before sitting up in bed
The more active you are, the lower your resting heart rate is
Maximum Heart Rate: the fastest your heart should beat during exercise
Formula: Max HR = 220-your age
Example: =200bpm

13. Heart Rate
Target Heart Rate Zone: the range that your heart rate should be within when you are exercising
Formula: Low end of Target HR = Max HR x .50
High end of Target HR = Max HR x .85
Example: 200 x .50 = 100 bpm
200 x .85 = 170 bpm
The Target HR Zone for a 20-year-old is bpm

14. Blood Pressure Blood Pressure: the force of blood against artery walls
Measured by two numbers…
Systolic: the pressure at the moment blood is being pumped out of the heart by the ventricles
Top number
Diastolic: the pressure at the moment the heart is relaxed and being filled with blood
Bottom number
Normal blood pressure is 120/80

15. High Blood PRessure High BP is called hypertension
Can be caused by thyroid, kidney, or adrenal gland problems
Certain prescription medications, alcohol, and illegal drugs
Too much salt in the diet
If neglected, hypertension may lead to heart attacks and strokes

16. Low Blood Pressure Low blood pressure is called hypotension
It is common for athletes and highly active people to have low BP because their heart rates can be low
Low BP can also be signs of other medical conditions and cause dizziness and/or fainting because the brain is not receiving enough oxygen
Pregnancy, lack of nutrients, anemia, dehydration, and certain medications can also cause low BP

17. Heart Diseases Videos

18. Cardiovascular Diseases
Cardiovascular Disease: heart disease
Atherosclerosis: build up of plaque on the inner wall of arteries
Arrhythmia: abnormal beating of the heart
Tachyardia: heartbeat is too fast >100bmp
Bradycardia: heartbeat is too slow <60bmp
Stroke: blood vessels that lead to the brain are blocked, usually due to a blood clot
Heart attack: blood flow to the heart is blocked, usually due to a blood clot