PLTW Principles of Biomedical Science 2.1.2 Test Review
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11 Terms
Homeostasis
The maintenance of stable internal physiological conditions (like body temperature or the pH of blood), which enables the optimal functioning of an organism.
Pulse
Number of heart beats in one minute. Measured as beats per minute (bpm)
Blood Pressure
The force of blood moving through the blood vessels. Measured in millimeters of mercury (mm Hg) using a device called a sphygmomanometer
Body Mass Index (BMI)
a measure of body fat that is the ratio of weight of the body to its height
Lung/Breath Sounds
the sound and clarity of breaths. measured by sound (crackling, wheezing, normal) using a stethoscope
Oxygen Saturation
the amount of oxygen in the blood. Measured as a percentage using a pulse oximeter.
Body Temperature
the degree of heat of a body. Measured in Fahrenheit or Celsius using a thermometer
What is the normal adult range for beats per minute?
60-100 bpm
What is oxygen saturation measured with?
Pulse Oximeter
Systolic Pressure
The systolic pressure measures the pressure in the arteries when the heart undergoes systole (heart contracts to push blood throughout the body).
Diastolic Pressure
The diastolic pressure measures the pressure in the arteries when the heart undergoes diastole (heart is at rest, allowing the chambers to fill with blood).