9 k speeding_up
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The document contains information about speed, distance, time and calculations related to them. It also discusses balanced and unbalanced forces on objects and examples like a camel standing still due to balanced forces and what would happen if the road was removed. It provides information about air resistance, how it increases with speed and can be reduced with streamlined shapes. It defines terminal velocity as the constant speed reached when air resistance balances the force of gravity for falling objects, using the example of a skydiver reaching terminal velocity until their parachute decreases air resistance and slows them down.
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1. Describe the organisation of respiratory center
2. Describe the nervous control of inspiration and respiratory rhythm
3. Describe the functions of the dorsal and respiratory groups of neurons
4. Describe the influences of the Pneumotaxic and Apneustic centers
5. Explain the role of Hering-Breur inflation reflex in regulation of inspiration
6. Explain the role of central chemoreceptors in regulation of respiration
7. Explain the role of peripheral chemoreceptors in regulation of respiration
8. Explain the regulation of respiration during exercise
9. Integrate the respiratory regulatory mechanisms
10. Describe the Cheyne-Stokes breathing
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1. Chapter 42, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 36, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 13, Human Physiology by Lauralee Sherwood, 9th edition
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- 3. Balanced and unbalanced forces Consider a camel standing on a road. What forces are acting on it? Weight Reaction These two forces would be equal – we say that they are BALANCED. The camel doesn’t move anywhere.
- 4. Balanced and unbalanced forces What would happen if we took the road away? Weight Reaction
- 5. Balanced and unbalanced forces What would happen if we took the road away? The camel’s weight is no longer balanced by anything, so the camel falls downwards… Weight
- 6. Balanced and unbalanced forces What would happen if we took the road away? The camel’s weight is no longer balanced by anything, so the camel falls downwards…
- 7. Balanced and unbalanced forces 1) This animal is either ________ or moving with _____ _____… 4) This animal is… 2) This animal is getting _________… 3) This animal is getting _______….
- 8. Balanced and unbalanced forces
- 9. Facts on Air Resistance Air Resistance is the force that acts ___________ anything that moves through the ______: It can be reduced by using a more “__________” (aerodynamic) shape: It gets _______ when you move faster: Streamlining also works when travelling through _______: Words – water, air, larger, against, streamlined
- 11. Terminal Velocity Consider a skydiver: 4) When he opens his parachute the air resistance suddenly ________, causing him to start _____ ____. 5) Because he is slowing down his air resistance will _______ again until it balances his _________. The skydiver has now reached a new, lower ________ _______. Words – slowing down, decrease, increases, terminal velocity, weight
- 12. Velocity-time graph for terminal velocity… Velocity Time Speed increases… Terminal velocity reached… Parachute opens – diver slows down New, lower terminal velocity reached Diver hits the ground On the Moon