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Respiration and Circulation . A. Describe the purpose of the respiratory system List & describe the structures of the respiratory system Describe the respiratory cycle, frequency, and factors that effect respiration in animals Label the parts of the circulatory system
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Respiration and Circulation A. Describe the purpose of the respiratory system List & describe the structures of the respiratory system Describe the respiratory cycle, frequency, and factors that effect respiration in animals Label the parts of the circulatory system Follow the path of a blood cell through the circulatory system
A. Describe the purpose of the respiratory system • USE YOUR OWN DEVICE TO FIND THE ANSWERS…
A. Describe the purpose of the respiratory system • What kind of animal can win the Triple Crown?
A. Describe the purpose of the respiratory system • A Horse (of course! )
A. Describe the purpose of the respiratory system • What breed of horse is usually used for racing?
A. Describe the purpose of the respiratory system • Thoroughbred
A. Describe the purpose of the respiratory system • What are the 3 races a horse must win to be Triple Crown Champion?
A. Describe the purpose of the respiratory system • Kentucky Derby • Belmont Stakes • Preakness
A. Describe the purpose of the respiratory system • Who was the 1st ever Triple Crown Champion? • What was the year?
A. Describe the purpose of the respiratory system • Sir Barton • 1919
A. Describe the purpose of the respiratory system • Who was the most recent Triple Crown Champ? • What year?
A. Describe the purpose of the respiratory system • Affirmed • 1978
A. Describe the purpose of the respiratory system • Who is one of the most recognized Triple Crown Champs? • What year did he win?
A. Describe the purpose of the respiratory system • Secretariat • 1973
A. Describe the purpose of the respiratory system • Why is Secretariat so famous?
A. Describe the purpose of the respiratory system • First Triple Crown Champion in 25 years • Set records in all 3 races that still stand today
A horse must win: 1-Kentucky Derby 2- Belmont Stakes 3- Preakness
A. Describe the purpose of the respiratory system • What do race horses have to do with the respiratory system?
A. Describe the purpose of the respiratory system • Function of Respiratory System • 1. To obtain and use oxygen • 2. To eliminate carbon dioxide
B. List & describe the structures of the respiratory system 1. Nostrils • Also called nares • Paired, external openings • Separated by nasal septum
B. List & describe the structures of the respiratory system 1. Nostrils cont’d • Dilatable • a. Species Differences • i Horse--Very Pliable and Dilatable • ii. Pig--Rigid
B. List & describe the structures of the respiratory system 2. Nasal Cavities • Paired • Separated by Nasal Septum, and from mouth by palate 3. Pharynx • Common pathway for air and food
B. List & describe the structures of the respiratory system 4. Larynx • "Voice Box" • Organ of Phonation (Sound Production) • Sound produced by controlled passage of air which causes vibration of vocal chords • Syrinx • Voice Box for Birds • Located where trachea divides from bronchi • Vibrating Muscles
B. List & describe the structures of the respiratory system 5. Trachea • Primary passage way to Lungs • Cartilage Rings prevent collapse of airway 6. Bronchi • 2 main branches from trachea
B. List & describe the structures of the respiratory system 7. Bronchioles • Smaller stems of bronchi 8. Alveoli • Principle site of gaseous diffusion between air and blood
B. List & describe the structures of the respiratory system Lungs • Principle Organ of Respiratory System • Paired, found in Thorax • Thorax = chest • a. Thorax expansion causes Lung expansion
Right Bronchus Trachea B. List & describe the structures of the respiratory system Right Lobes Left Bronchus Bronchioles Left Lobes Pleura Diaphragm Alveoli
C. Describe the respiratory cycle, frequency, and factors that effect respiration in animals • Respiratory Cycle: • 1. Inspiration • A. Intake of air • B. Enlargement of thorax and lungs • C. Diaphragm pulls down creating negative air pressure
C. Describe the respiratory cycle, frequency, and factors that effect respiration in animals • Respiratory Cycle: • 2. Expiration • A. Removal of air • B. Contains mostly Carbon Dioxide • C. Diaphragm pushes UP
C. Describe the respiratory cycle, frequency, and factors that effect respiration in animals • Frequency • A. Number of Respiratory Cycles per minute • B. Factors affecting Respiratory Frequency • a. Species variations • Horse 12 • Cow 29 • Pig 40 • Sheep 25 • b. Body Size • --Heavy animals breath heavier
C. Describe the respiratory cycle, frequency, and factors that effect respiration in animals Frequency Cont’d • c. Age • -Younger less • d. Exercise • -Increases • e. Excitement • -Increases • f. Environmental Temperature • -Faster in heat (panting)
C. Describe the respiratory cycle, frequency, and factors that effect respiration in animals Frequency Cont’d • g. Pregnancy • --Increases • h. Degree of filling of Intestine • --Increases • I. State of health • --Disease increases
D. Label the parts of the circulatory system Red = Oxygenated Blue = Deoxygenated Superior Vena Cava Left Atrium Right Atrium Semilunar Valve Tricuspid Valve Mitral Valve Left Ventricle Perkinge Fibers Right Ventricle Inferior Vena Cava Septum
E. Follow the path of a blood cell through the circulatory system Circulatory System • Circulatory System is a closed circuit path • Blood cells follow this path over, and over, and over again
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 1-Capillary: • Thin walled blood vessels • Site of gas exchange • Microscopic in size • Every inch of your body is covered in hundreds of capillaries
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 2-Vein: • Pathway of blood headed BACK to the heart • Always deoxygenated • With 1 exception Small Veins are called Venules
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 3-Superior/Inferior Vena Cava • Where blood ENTERS heart
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 4-Right Atrium • 1st Chamber of the heart
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 5-Tricuspid Valve • 3 Sections
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 6-Purkinje Fibers • Prevent backflow of blood
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 7-Right Ventricle • 2nd Chamber of heart
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 8-Semilunar Valve • Deoxygenated blood LEAVES the heart through this valve
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 9-Lungs • Blood is oxygenated by lungs • Oxygen exchange takes place by passing from the alveoli (respiratory system) to the capillaries (circulatory system)
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 10-Left Atrium • 3rd Chamber • OXYGENATED blood re enters the heart Left Atrium
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 11-Mitral Valve • Valve between LEFT atrium & ventricle Left Atrium Mitral Valve Named because it looks like a Miter’s hat
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 12-Left Ventricle • Last (4th) chamber of the heart before blood leaves the heart through arteries Left Ventricle
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • 13-Arteries • LARGE Blood passageways that take OXYGENATED blood AWAY from the heart
Follow the Circulatory System E. Follow the path of a blood cell through the circulatory system • Capillaries (again) • Here is where the process starts all over • Junction between arteries and veins