Bio Measure Flashcards
(15 cards)
What device is used in hospitals to measure heart rate?
Electrocardiography (ECG)
ECG measures the number of beats per minute.
How can a doctor manually measure a patient’s heart rate?
By placing two fingers on the patient’s inner wrist and counting the beats per minute
This method uses a watch to time the counting.
What does heart rate variability (HRV) indicate?
It may indicate stress
HRV is the variation in time between heartbeats.
In what unit is heart rate variability (HRV) measured?
Milliseconds
HRV decreases when a person is stressed.
How is HRV measured in a clinical setting?
Using electrocardiography
This method provides accurate HRV readings.
What modern devices can measure heart rate?
Smart watches
These devices detect heartbeat by measuring blood flow from the wrist.
What is the function of functional magnetic resonance imaging (fMRI)?
It detects and records brain activity
fMRI recognizes changes in blood oxygenation related to brain activity.
What happens to cerebral blood flow when a part of the brain is active?
It increases
Active brain regions require more oxygen, leading to greater blood flow.
What task might a person be asked to complete to measure stress?
A stress-inducing task
This can help assess the physiological response to stress.
Which part of the brain is most active?
The amygdala and hippocampus
These areas are crucial for emotion and memory processing.
What is a pulse oximeter?
A device used to measure oxygen saturation and heart rate
It is a small chip placed on the finger.
Fill in the blank: The _______ is a brain region involved in emotion processing.
amygdala
Fill in the blank: The _______ is a brain region associated with memory.
hippocampus
True or False: The hypothalamus is one of the most active parts of the brain.
True
What does a pulse oximeter measure?
Oxygen saturation and heart rate
