Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
Which cells in the heart exhibit spontaneous generation of action potentials (APs)?
Which cells in the heart exhibit spontaneous generation of action potentials (APs)?
- Cardiac muscle cells
- Neurons
- Sino-atrial node (SAN) cells
- Pacemaker cells (correct)
What is the main function of the sino-atrial node (SAN) in the heart?
What is the main function of the sino-atrial node (SAN) in the heart?
- Stimulation of neural activity
- Generation of action potentials (APs) (correct)
- Conduction of waves of action potentials (APs)
- Contraction of cardiac muscle cells
What is the membrane potential of a pacemaker cell during an action potential (AP)?
What is the membrane potential of a pacemaker cell during an action potential (AP)?
- Negative
- Depolarized
- Positive (correct)
- Zero
What is the term used to describe the ability of the heart to beat without neural stimulation?
What is the term used to describe the ability of the heart to beat without neural stimulation?
Signup and view all the answers
Where does the conduction of waves of action potentials (APs) start in the heart?
Where does the conduction of waves of action potentials (APs) start in the heart?
Signup and view all the answers
