Podcast
Questions and Answers
What causes transmitter release?
What causes transmitter release?
- Neuronal action potential
- Nicotinic AchR activation
- Acetylcholine release
- Synaptic vesicle (correct)
What does a rise in calcium do?
What does a rise in calcium do?
- Causes membrane depolarization
- Promotes actin-myosin interaction and cell shortening (correct)
- Triggers acetylcholine release
- Activates voltage-sensitive DHP protein
What is the main difference between skeletal and smooth muscle contraction?
What is the main difference between skeletal and smooth muscle contraction?
- Smooth muscle uses troponin-tropomyosin complex, while skeletal muscle does not
- Smooth muscle has motor nerve activation, while skeletal muscle does not
- Skeletal muscle contracts more slowly than smooth muscle
- Skeletal muscle has striations, while smooth muscle does not (correct)
What leads to a rise in calcium during skeletal muscle activation?
What leads to a rise in calcium during skeletal muscle activation?
What is the primary event following acetylcholine release at the neuromuscular junction?
What is the primary event following acetylcholine release at the neuromuscular junction?
What is the role of SERCA in skeletal muscle contraction?
What is the role of SERCA in skeletal muscle contraction?
What triggers calcium-induced calcium release (CICR) in cardiac muscle contraction?
What triggers calcium-induced calcium release (CICR) in cardiac muscle contraction?
What is the function of Troponin-T?
What is the function of Troponin-T?
How does calcium influx affect smooth muscle contraction?
How does calcium influx affect smooth muscle contraction?
What differentiates the myosin isoform in smooth muscle from that in skeletal muscle?
What differentiates the myosin isoform in smooth muscle from that in skeletal muscle?
What is the role of Myosin Light Chain Kinase (MLCK) in smooth muscle cells?
What is the role of Myosin Light Chain Kinase (MLCK) in smooth muscle cells?
What is the function of Troponin-C?
What is the function of Troponin-C?
What initiates the depolarization process in a skeletal muscle cell?
What initiates the depolarization process in a skeletal muscle cell?
