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Summary Mastering Biology notes on Chapter 43 Circulatory System

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This document includes: open and closed system, double circulation, pulmonary and systemic, oxygenated blood, the human heart, vena cava, cardiac cycle, diastole and systole, atrioventricular valves, semi-lunar valves, sinoatrial and atrioventricular nodes, fish gills, cellular respiration, hemoglobin, cooperative binding, the bohr shift, respiratory system, etc.

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Institution
University College Utrecht (UCU)
Course
BIO13 (BIO13)

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Chapter 43 The Circulatory System


Insects, open circulatory system
Vertebrates, closed circulatory system




Double circulation
1. Pulmonary circuit: passes through lungs. Low pressure
2. Systemic circulation: goes to body tissues. High pressure
Right side of heart: deoxygenated => goes to lungs
Left side of heart: oxygenated => goes to tissues
Necessary for decrease in blood pressure as blood moves through the lungs




- Deoxygenated blood: Vena cava => Right atrium => (Bicuspid valve) => Right ventricle
=> Pulmonary artery => (Pulmonary valve)
- Lungs
- Oxygenated blood: Pulmonary vein => Left atrium => (Tricuspid valve) => Left
ventricle => Aorta => (Aortic valve)
- Body tissues

, Cardiac cycle: one complete diastole and one complete systole. Less than 1 sec
- Diastole: relaxed. Blood flows into atria when atria and ventricles are relaxed, then
both atria contract simultaneously. Lowest pressure
- Systole: both ventricles contract simultaneously. Peak pressure
Systole
C ardiac cycle=
Diastole
Superior and inferior vena cava




Atrioventricular valves:
- Bicuspid: right side of heart
- Tricuspid: left side of heart
Semi-lunar valves
- Pulmonary valve: Pulmonary artery
- Aortic valve: Aorta
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Institution
University College Utrecht (UCU)
Study
Liberal Arts and Sciences
Course
BIO13 (BIO13)

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Uploaded on
August 20, 2024
Number of pages
5
Written in
2023/2024
Type
SUMMARY

Subjects

  • mastering biology notes
  • circulatory system
  • open and closed system
  • double circulation
  • pulmonary and systemic
  • oxygenated blood
  • human heart
  • vena cava
  • cardiac cycle
  • diastole and systole
  • atrioventricular v
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