1 / 61

Lesson 1

Lesson 1. Digestive System Quiz Begin Circulatory System Types of Blood Vessels. The Circulatory System. A Bloody Situation. The Case of the Missing Jewels

loutland
Download Presentation

Lesson 1

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lesson 1 • Digestive System Quiz • Begin Circulatory System • Types of Blood Vessels

  2. The Circulatory System A Bloody Situation

  3. The Case of the Missing Jewels Late one April night, government agents received an anonymous tip that the National Art Museum was about to be robbed of its priceless jewel collection! When they arrived a the museum, they saw they were too late: the jewels were gone. There was no one around, but there was evidence of a struggle. Blood was spattered all over a nearby wall. In another area, there was a smeared pool of blood. Hidden in the corner, investigators found a bloody knife.

  4. Your Mission You and your partner are investigators on the scene. Your job is to identify the blood and narrow down the suspects. Based on what you know about blood, come up with at least 3 forensic questions that could be answered by analyzing the blood.

  5. Blood Components White Blood Cell Red Blood Cell Platelet

  6. Human Blood Blood is not Blue Video BRAINPOP Major Components: • Plasma - 90% water, contains other components 2) Platelets 3) White Blood Cells 4) Red Blood Cells Produced in bone marrow

  7. Blood Components

  8. Suspended Materials in Plasma • Dissolved gases (CO2) • Salt • Glucose • Amino acids • Hormones • Urea (wastes) • Medications

  9. Bi-concave discs • no nucleus • Smaller than WBC • 5 million per ml (most numerous!) • Produced in bone marrow • Live for 120 days • Contain iron rich protein hemoglobin which carries oxygen! (forms oxyhemoglobin) • Responsible for blood type

  10. Blood Types

  11. The “army” of the circulatory system • Fights foreign invaders (infection, viruses, allergens, bacteria) • Fewest in number • Produced in bone marrow • Have a nucleus • Largest • Most only live for a few days WHITE BLOOD CELLS

  12. Needed for blood clotting • Release clotting factors (proteins) and forms fibrin to produce a scab to stop bleeding • Very small • Irregular shaped fragments • Not as many as RBCs

  13. Blood Cell Types

  14. Why is blood considered a tissue?

  15. As blood flows through the circulatory system, it moves through three types of blood vessels Capillary Artery Vein BRAINPOP

  16. Capillaries Vein Artery Arterioles Venules • Arteries: carry oxygen & nutrients AWAY from the heart toward the body tissues • Veins: carry carbon dioxide & wastes back TOWARD the heart from the body tissues

  17. Capillary Artery Vein • carries blood back TO the heart from the body • have VALVES to prevent backflow of blood • located near skeletal muscles to squeeze vein pushing blood • carries blood AWAY from heart • thick walled, muscular blood vessels • withstand powerful blood pressure from heart contracting • pulse detected here • smallest (only one cell thick) • connect arterioles to venules • site where gases, nutrients & wastes are exchanged between blood & body tissues (diffusion)

  18. THE BLOODMOBILE!!! • Blood carries oxygen and nutrients away from the heart toward the body tissues! • Blood carries carbon dioxide and wastes back to the heart to be pumped to the lungs!

  19. Let’s Review Blood Vessels! Capillary Vein Artery YMCA song

  20. Lesson 3 • Heart Structure

  21. The Human Heart • Muscular organ that contracts to pump blood • 4 chambers • 2 atria (top) • 2 ventricles (bottom)

  22. Structure of the Human Heart 1. AORTA (largest artery – pumps oxygenated blood to body tissues) 2. PULMONARY ARTERY (pumps deoxygenated blood to lungs to get oxygenated) 3. PULMONARY VEINS (pumps oxygenated blood from lungs to left atrium) 4. Left Atrium (pumps oxygenated blood received from lungs to left ventricle 6. Left Ventricle (pumps oxygenated blood into aorta) 7. Septum (divides the 2 sides of heart (prevents mixing of blood)

  23. Structure of the Human Heart 13. Pulmonary Artery (“Pulmonary =Lungs”) same as 2. 12. Superior Vena Cava (same as 10.) 11. Right Atrium (pumps deoxygenated blood into right ventricle) 10. Inferior Vena Cava (returns deoxygenated blood from body to right atrium) 9 & 5. Valves (prevent backflow of blood) 8. Right Ventricle (pumps deoxygenated blood into Pulmonary Artery to lungs) 14. AORTA

  24. Color code your heart • RED = oxygenated blood • Pulmonary arteries (left & right) • Left atrium • Left ventricle • Aorta • Blue = deoxygenated blood • Superior & inferior vena cavae • Right atrium • Right ventricle • Pulmonary veins (right and left)

  25. Structure of the Human Heart 1. AORTA (largest artery – pumps oxygenated blood to body tissues) 13. Pulmonary Artery (“Pulmonary =Lungs”) same as 2. 2. PULMONARY ARTERY (pumps deoxygenated blood to lungs to get oxygenated) 12. Superior Vena Cava (same as 10.) 11. Right Atrium (pumps deoxygenated blood into right ventricle) 3. PULMONARY VEINS (pumps oxygenated blood from lungs to left atrium) 4. Left Atrium (pumps oxygenated blood received from lungs to left ventricle 10. Inferior Vena Cava (returns deoxygenated blood from body to right atrium) 6. Left Ventricle (pumps oxygenated blood into aorta) 9 & 5. Valves (prevent the backflow of blood) 8. Right Ventricle (pumps deoxygenated blood into Pulmonary Artery to lungs) 7. Septum (divides the 2 sides of heart (prevents mixing of blood) 14. AORTA

  26. Lesson 4 • Circulation Pathways • Heartbeat / contractions

  27. Heart flow Animation Aorta Superior vena cava Left Pulmonary Artery Right Pulmonary Artery Left Pulmonary Veins Right Pulmonary Veins LA RA Pulmonary Trunk LV RV Inferior vena cava

  28. Types of Circulation • the heart functions as 2 separate pumps 1. Pulmonary Circulation: • right ventricle pumps deoxygenated blood to the lungs • Inhaled O2 diffuses INTO the blood • CO2 diffuses OUT of the blood to be exhaled

  29. Types of Circulation • the heart functions as 2 separate pumps 2. Systemic Circulation: • left ventricle pumps oxygenated blood that just returned from the lungs to the rest of the body systems/tissues • Coronary Circulation: • Blood pumped from the left ventricle through the vessels serving the heart muscle (coronary arteries)

  30. Coronary arteries Coronary veins

  31. Heartbeat / Contractions

  32. Heartbeat / Contractions Sinoatrial (SA) node • Small region of muscle cells in the top of the right atrium • Acts as a pacemaker • Sends electrical signal to the Atrioventricular (AV) node • Located in bottom of right atrium • Transmits signal throughout ventricle muscle walls, causing them to contract

  33. Heartbeat / Contractions

  34. Lesson 5 • Malfunctions of the Circulatory System • Hypertension • Heart attack • Stroke • Leukemia • Anemia (2 types) • Hemophilia

  35. Disorders of the circulatory system

  36. #1 Healthy or unhealthy? UNHEALTHY!

  37. #2 Healthy or Unhealthy? UNHEALTHY!

  38. #3 Healthy or Unhealthy? UNHEALTHY!

  39. #4 Healthy or Unhealthy? UNHEALTHY!

More Related