bioL5
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- During ventilation, gases enter and exit the circulatory system by the process of ______________.
- diffusion
- The amount of water pumped by a crayfish past its gills is proportional to what? __________________________
- amount of O2 crayfish takes in
- Why is nitrogen gas bubbled through the water in this laboratory exercise? ___________________________________________
- expose crayfish to low conc of H20
- In what direction do crayfish pump water? ________________
- anterior (forward)
- In the crayfish physiology lab, you will be taking oxygen concentration data readings every ____________ minutes.
- 5
- Vessels that carry blood away from the heard are called ____
- arteries
- Blood pressure is highest at the time of ____________
- ventricular contraction
- The highest blood pressure reading is called the _________
- systolic pressure
- During ventricular relaxation, you will measure the ______________ pressure.
- diastolic
- A ____________________ consists of an inflatable armband, rubber bulb, and a pressure gauge.
- sphgmamanometer
- The arm-band is initially inflated to a pressure that stops ____________
- blood flow to the arm
- When you can first hear a pulse in the stethoscope, the gauge will measure the ______________ pressure.
- systolic
- In what units is blood pressure measured? ________________
- mmHg
- _____________________ are tiny vessels that connect the arteries to the veins.
- capillaries
- Vessels that carry blood towards the heart are called ____________
- veins