Science 8 Cells Systems Circulatory SystemThe Heart Circulatory
- Slides: 13
Science 8: Cells & Systems Circulatory System-The Heart
Circulatory System: • Delivers nutrients to every cell in our body • Transports oxygen to cells • Removes waste from cells
Our heart is an important part of our circulatory system! It has: • 2 sides • 2 pumps (one on each side)
Sides of the Heart The Right Side: • Pumps blood to the lungs to get fresh oxygen (and get rid of carbon dioxide) The Left Side: • Receives oxygen-rich blood from the lungs • Pumps oxygen-rich blood to your whole body
Top and Bottom Top 2 chambers: • Atria • Where blood enters the heart Bottom 2 chambers: • Ventricles • Where blood exits the heart
The Aorta: • Largest artery in the body • Sends blood to our whole body Remember *** Arteries carry blood away from your heart
Vena Cava: • Large veins that carry blood to the heart Remember*** Veins carry blood to our heart
There are 2 Vena Cava: Superior Vena Cava • Returns deoxygenated blood from the upper half of the body to the right atrium Inferior Vena Cava • Returns deoxygenated blood from the lower and middle body to the right atrium
Valves: Blood flows from the right atrium to the right ventricle through the tricuspid valve. Blood flows from the left atrium to the left ventricle through the mitral valve.
The valves keep our blood flowing in one direction Lungs Left atrium Left Atrium Left ventricle Body Right atrium Right ventricle Lungs Oxygenated blood Deoxygenated blood
Summary for Blood Vessels:
Our Blood: Red Blood Cells + White Blood Cells + Platelets = 45 % of our blood with Hemoglobin: • Contains iron (Fe) • Transport oxygen • flexible White blood cell • Fight infection Plasma, the liquid portion of our blood = the other 55% Platelets • Stop bleeding • Help form clots • Carries nutrients to cells • Carries waste away from cells
- Submentovertical projection
- Reabsorption
- Thyroid gland
- Haploid vs diploid venn diagram
- Why dna is more stable than rna?
- Red blood cells and white blood cells difference
- What is eukarya
- Comparing animal and plant cells venn diagram
- Prokaryotic cells vs eukaryotic cells venn diagram
- Why did robert hooke name cells “cells”?
- Masses of cells form and steal nutrients from healthy cells
- Pseudostratified vs simple columnar
- Prokaryotic cells vs eukaryotic cells
- Which compares prokaryotes and eukaryotes