Synapse is the connection stablished between neurons or between neurons and effector cells. a) a neuron b) effector organ c) chemical.
What is a synapse?
Neurons transmit nervous impulses.
Every neuron forms connections with other neurons or with effector organs, such as the muscle. These connections are known as synapses.
Synapses can be either chemical or electrical. The most common one is the chemical synapses that involve the release of a substance known as a neurotransmitter.
During chemical synapses, when a presynaptic neuron sends information, it releases neurotransmitters. This event is done through exocytosis.
The neurotransmitter is a molecule that travels through the synaptic space forward to the other neuron or effector cell. Once the chemical reaches the postsynaptic membrane, it binds to its receptors.
This binding neurotransmitter-receptor produces excitatory postsynaptic potential, which is the depolarization of the postsynaptic cell.
Once the action potential is initiated, it spreads to the rest of the membrane, depolarizing it.
A synapse is the specific location where _a neuron_ is functionally connected to either another neuron or _an effector cell (i.e. muscle)_ . There are two types of synapses in the human body: chemical synapses and electrical synapses. Most synapses within the nervous system are __chemical__ synapses.
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Mechanisms that regulate smooth muscle contraction (independently of nerves or hormones) by which organs and tissues alter their own arteriolar resistances and blood flow are referred to as ______.
Mechanisms that regulate smooth muscle contraction (independently of nerves or hormones) by which organs and tissues alter their own arteriolar resistances and blood flow are referred to as : Myosin and actin
Meaning of Myosin and actin
Myosin and actin are proteins that are found in all type of muscle tissue.
Smooth muscles (Heart) do not need nerves but it is an involuntary action, due to the presence of the myosin and actin, it work continuously.
Myosin and Actin are like a sliding filament in the muscle structure of the heart. they cause the heart to work continuously.
in conclusion, the Mechanisms that regulate smooth muscle contraction (independently of nerves or hormones) by which organs and tissues alter their own arteriolar resistances and blood flow are referred to as : Myosin and actin
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Are whales more closely related to fish or to elephants?
List 3 reasons
The project that sequenced and mapped all of the genes in the human body is known as _____.
Answer:
The answer is Human Genome Project
Explanation:
The project that sequenced and mapped all of the genes in the human body is known as Human Genome Project .
What is the US Census Bureau requirement for a place to be classified as urban?
A: no less than 1 million people
B: any population over 100,000 people
C: a population of 10,000 or more
D: at least 1,000 people per square mile
Answer:
at least 1,000 people per square mile
Explanation:
I took the test it was correct. ( i know thats not an explanation im sorry but its correct).