Question

3. The mechanism of when a high fever occurs. (345) attempts to cool the body by evaporation 4 The character of the pulse is affected by 5. The pulse rate is normally dependent on the impulses emerging from t (345) he in the heart. (345) 6. The degree of blood vessels can also affect stroke volume and pulse. (345) of the or Average cardiac output in the adult is about 7. of blood per minute. (345) Ventilation is the mechanical movement of air 8. (346) Diffusion of oxygen and carbon dioxide occurs across the 9. (346) 10. Structures directly involved in respiration are: (346) 11. A substance necessary in the alveoli to keep them open is (346) 12. The respiratory center is located in the and of the brain stem. (347) 13. The respiratory centers are signaled to alter rate or depth of respiration by the in the carotid arteries and by the receptors adjacent to the aortic arch. (347) 14. Systolic pressure is when there is: (347)

Answer 1

3. The mechanism of diaphoresis attempts to cool the body by evaporation when a high fever occurs

4. The character of the pulse is affected by stroke volume

5. The pulse rate is normally dependent on the impulses emerging from the sinoatrial node in the heart

6. The degree of vasoconstriction or vasodilatation of the blood vessels can also affect stroke volume and pulse.

7. Average cardiac output in the adult is about 5 litres of the blood per minute

8. Ventilation is the mechanical movement of air between the atmosphere and lungs

9. Diffusion of oxygen and carbon dioxide occurs across the alveolar membrane

10. Structures directly involved in respiration are the nose, mouth, pharynx, larynx, trachea, bronchi, bronchioles and alveoli

11. A substance necessary in the alveoli to keep them open is surfactant

12. The respiratory center is located in the medulla oblongata and pons of the brain stem

13. The respiratory centres are signalled to alter rate or depth of respiration by the carotid bodies in the carotid arteries and by the aortic body receptors adjacent to the aortic arch

14. Systolic pressure is when there is maximum pressure exerted on the arteries during left ventricular contraction