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Because the PVC (premature ventricular contraction) comes early, there is more time before the next beat, meaning that there is more time for the heart to fill. Because of more filling, there is more initial tension on the cardiac muscle, eliciting a stronger contraction from the heart. Also, the PVC is a weak contraction, so the heart does not fully empty, and there is more residual blood in the heart even before it starts filling again.
What else can I help you with?
The biological explanation for how memory works is called?
It is called long-term potentiation.
What must your nerve cells undergo to form memories?
Long-term potentation
What is a true statement about synapses?
Synapses are specialized junctions between two neurons where communication occurs via neurotransmitters. They play a crucial role in transmitting electrical or chemical signals in the nervous system. Synaptic strength can be modified through processes like long-term potentiation or depression, affecting overall neuronal communication and plasticity.
What is the synaptic basis for learning and memory?
Learning and memory involve changes in synaptic strength and connectivity between neurons, known as synaptic plasticity. This may include long-term potentiation (LTP), which strengthens synapses, and long-term depression (LTD), which weakens synapses. These changes in synaptic transmission are thought to underlie the formation and storage of memories in the brain.
A deficiency of this hormone causes hypocalcemic tetany?
Obviously,deficiency of PTH causes hypocalcaemic tetany as PTH is one of the most important regulator in maintainance of the cocentration of plasma Ca++.It increases the rate of bone resorption through potentiation of osteoclastic activity.It also increases the reabsorption of Ca++ from DCT through recruitment of more TRPV-5 channels.So,if due to any cause there is gross injury in parathyroids(mostly occurs during performing thyroidectomy operation),there is hypothyroidism followed by marked hypocalcaemia resultig in hypocalcaemic tetany.
Occurs when the effect of one drug is enhanced by the presence of another?
One term for it is potentiation.
The neural basis for learning and remembering associations?
long-term potentiation
What does long term potentiation theory refer to?
an increase in a neuron's firing potential.
Are there different types of synaptic plasticity?
Yes, there are two main types of synaptic plasticity: long-term potentiation (LTP) and long-term depression (LTD). LTP strengthens synaptic connections, while LTD weakens them. These processes play a crucial role in learning and memory formation in the brain.
The process by which the hippocampus encodes memories and prepares them for long-term storage is called?
long-term potentiation.
What does Long-term potentiation involve?
The strength of the connection between two neurons is increased when they are simultaneously stimulated.
What is an example of potentiation?
something on the top of a hill about to go down
When you are forming memories the neurons and the connections between them strengthen?
short-term memory-apex long-term potentiation.
What neurotransmitter does long-term potentiation depend on?
Long-term potentiation (LTP) primarily depends on the neurotransmitter glutamate, specifically its activation of NMDA receptors to initiate the signaling cascade that underlies the strengthening of synaptic connections. Dopamine and other neurotransmitters also play modulatory roles in LTP.
The neural basis for learning and remembering associations involves the strengthening of potential neural firing and is called?
long-term potentiation
What happens to your synaptic system if you don't use them?
If we don't use our synaptic system that leads to short term potentiation i.e short term memory. short term and long term memory depends on maintenance of synaptic potentiation. so if we don't use our synaptic system no new nerve cell for saving info will not be generated.
Is it safe to mix marijuana and ecstasy?
Mixing them is as safe as taking the ecstasy in itself. Cannabis never potentiates anything (mental potentiation aside). It's really a great combo. Have fun!
