Crayfish Physiology

Crayfish Physiology - ARTERIES 11 Blood pressure is highest...

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Crayfish Physiology 1. What gas is taken up during ventilation? OXYGEN 2. What gas is released during ventilation? CARBON DIOXIDE 3. What molecule is broken down to generate energy? GLUCOSE 4. During ventilation, gases enter and exit the circulatory system by the process of BREATHING 5. The amount of water pumped by a crayfish past its gills is proportional to what? AMOUNT OF OXYGEN THAT A CRAYFISH IS TAKING IN 6. Why is nitrogen gas bubbled through the water in this laboratory exercise? NITROGEN DISPLACES THE OXYGEN AND THEREBY DECREASES THE OXYGEN CONCENTRATION 7. In what direction do crayfish pump water? POSTERIOR- ANTERIOR 8. In the crayfish physiology lab, you will be taking oxygen concentration data readings every 5 minutes. 9. Blood pressure is defined as FORCE PER UNIT AREA THAT THE BLOOD EXERTS UPON THE WALLS OF THE BLOOD VESSELS 10. Vessels that carry blood away from the heart are called
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Unformatted text preview: ARTERIES 11. Blood pressure is highest at the time of EXERTION 12. The highest blood pressure reading is called the SYSTOLIC PRESSURE 13. During ventricular relaxation, you will measure the DIASTOLIC PRESSURE pressure. 14. A SPHYGMOMANOMETER consists of an inflatable armband, rubber bulb, and a pressure gauge. 15. The arm-band is initially inflated to a pressure that stops PRESSURE BLOOD FLOW 16. When you can first hear a pulse in the stethoscope, the gauge will measure the SYSTOLIC pressure. 17. In what units is blood pressure measured? mm Hg 18. The ___________________________ is characterized by a reduction in the pulse rate and the blood flow when someone places his/her face in water. 19. CAPILLARIES are tiny vessels that connect the arteries to the veins. 20. Vessels that carry blood towards the heart are called ___ VEINS _________....
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Crayfish Physiology - ARTERIES 11 Blood pressure is highest...

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