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Blood circulatory System Class X

Blood circulatory System Class X. Ms Sarita Tejwani KV Ujjain. Index The Circulatory System Functions of the Circulatory System Components of Circulatory S ystem The Heart The blood vessels Artery-Vein Comparison Internal structure of human heart Double circulation

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Blood circulatory System Class X

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  1. Blood circulatory System Class X Ms Sarita Tejwani KV Ujjain

  2. Index • The Circulatory System • Functions of the Circulatory System • Components of Circulatory System • The Heart • The blood vessels • Artery-Vein Comparison • Internal structure of human heart • Double circulation • The cardiac cycle • Blood pressure • Measuring blood pressure- Sphygmomanometer • References

  3. Functions of the Circulatory System • To carry digested food from the small intestine to all body parts. • To carry oxygen from the lungs to the rest of the body. • To aid in the disposal of all wastes from the body. • To distribute heat. • To fight diseases.

  4. Components of circulatory system HeartBloodBlood vessels

  5. The Heart • Location – left side of chest cavity • Size- As big as closed fist • Mass-between 250 and 350 grams

  6. The blood vessels

  7. Artery-Vein Comparison

  8. Internal structure of human heart 1. The heart is divided into four main chambers: The upper chambers - left and right atria -receiving chambers Two lower chambers - right and left ventricles-discharging chambers.[ 2. Septum-thick wall of muscle separating the right side and the left side of the heart  3. Pericardium-double-walled protective sac 4. Valves – Tricuspid and bicuspid 5. Aorta – Main artery 6. Pulmonary artery and pulmonary vein

  9. Double circulation Systemic circulation Pulmonary circulation Deoxygenated blood is pumped to the lungs via pulmonary artery and oxygenated blood returned to the heart via the pulmonary vein. Systemic circulation is the circulation of the blood to all parts of the body except the lungs

  10. The cardiac cycle RA

  11. Path of blood circulation

  12. Blood pressure Force that blood exert against the wall of a vessel Systolic pressure The pressure of blood during ventricular systole (contraction) 120 mm of Hg Diastolic pressure The pressure of blood in artery during ventricular diastole (relaxation) 80 mm of Hg

  13. Measuring blood pressure- Sphygmomanometer

  14. Recapitulation

  15. References • leavingbio.net • en.wikipedia.org  • library.thinkquest.org • https://en.wikipedia.org/wiki/Circulatory_system • https://en.wikipedia.org/wiki/Circulatory_system • http://biology.clc.uc.edu/courses/bio105/circulat.htm

  16. Thank You

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