[03] Bioelectricity and Bioelectromagnetism Flashcards
Define “Bioelectricity”.
It refers to the generation and transmission of electric currents in living organisms.
What is “Bioelectromagnetism”?
It is the study of how living organisms generate and use electromagnetic fields.
Why is bioelectricity important in physiology?
Bioelectricity is fundamental to many biological processes such as nerve impulse transmission and muscle contraction.
How does bioelectromagnetism apply to living organisms?
Living organisms generate electromagnetic fields during biological processes such as heart and brain activities.
What techniques are used to measure bioelectric signals in the body?
- Electrocardiography (ECG)
- Electroencephalography (EEG)
- Electromyography (EMG)
Define “Electrocardiography (ECG)”.
ECG is a technique that records the electrical activity of the heart over a period of time.
What is Electroencephalography (EEG)?
EEG is a technique that records the electrical activity of the brain.
How is Electromyography (EMG) utilized in biophysics?
EMG is used to detect the electrical potential generated by muscle cells when they are electrically or neurologically activated.
How are bioelectric signals used in healthcare?
They are used in diagnostics (like ECG for heart conditions), treatments (like pacemakers), and in biomedical research.
How does bioelectromagnetism contribute to medical imaging?
Techniques like Magnetic Resonance Imaging (MRI) rely on bioelectromagnetism to produce detailed images of the body.
What is a pacemaker in the context of bioelectricity?
It’s a medical device that uses electrical impulses to regulate the beating of the heart.
How does a defibrillator work in terms of bioelectricity?
A defibrillator delivers a dose of electric current to the heart to correct or control the heartbeat.
Why is understanding bioelectricity important for neurology?
Neurons communicate using bioelectric signals, so understanding bioelectricity is crucial for understanding how the brain and nervous system function.
What does ion movement have to do with bioelectricity?
The movement of ions across cell membranes creates bioelectric signals like nerve impulses.
Why do muscles generate bioelectric signals?
Bioelectric signals cause muscles to contract and enable movement.
What role does bioelectricity play in sensory perception?
Bioelectric signals are used to transmit information from sensory organs to the brain.
What is an example of bioelectromagnetism in animals?
Some animals, like birds and sharks, may use the Earth’s magnetic field for navigation, a phenomenon related to bioelectromagnetism.
How does bioelectromagnetism relate to electromagnetic therapy?
Therapies like Transcranial Magnetic Stimulation (TMS) use electromagnetic fields to treat certain medical conditions.
Define “Transcranial Magnetic Stimulation (TMS)”.
TMS is a noninvasive procedure that uses magnetic fields to stimulate nerve cells in the brain.
