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Ray Of Light [21]
3 years ago
8

What is the purpose of the vas deferens?

Biology
2 answers:
never [62]3 years ago
7 0

Vas deferens is a long partially coiled, muscular tube in the male reproductive system. The purpose of the vas deferens is to transport sperm from the epididymis to the ejaculatory ducts, in preparation for ejaculation. There are two identical vas deferens that joins the two epididymis with the seminal vesicles to form the ejaculatory duct for the movement of sperm.

OLga [1]3 years ago
5 0
The vas deferens transport sperm from the testicle to the urethra. 
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   (B) The uniform should be changed immediately

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Elis [28]

Stabilization Selection


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Describe the role of the following in synaptic communication:______.
Scilla [17]

Answer:

1- Ionotropic receptors form ionic channels that allow certain ions to pass through the plasma membrane, and metabotropic receptors, which are associated with G proteins and have a modulating action on synaptic transmission.

2-Neurons communicate with each other through neurotransmitters, which are the molecules responsible for sending signals from one neuron to the next neuron. Neuromodulators also enter into communication between nerve cells.

3-Rapid PPSE occurs when postsynaptic nicotinic receptors on dendrites and neuronal cell bodies are activated through acetylcholine, which causes membrane depolarization and allows the entry of Na and Ca ions.

Acetylcholine also allows the activation of postsynaptic muscarinic receptors, which leads to the slow excitatory postsynaptic potential. This occurs when the channels are Ca and Na open and the K channels are closed.

4-When the neurotransmitters are attached to their receptors, the opening of the ion channels can be opened. This leads to two types of postsynaptic potentials being generated: postsynaptic excitation potentials (PEPs), if the membrane potential is depolarized, and the postsynaptic potential inhibitors (PIPs), if the membrane potential is hyperpolarized.

Explanation:

1-The importance of studying neurotransmitter receptors is that most of the drugs of clinical importance, such as anesthetics, anticonvulsants, etc., are based on the mechanisms of action of these receptors

2-Neurotransmitters allow them to produce or not action potential, serves to activate postsynaptic receptors and are capable of opening ion channels. On the other hand, neuromodulators are responsible for regulating the activity of ion channels.

3-The fast PPSE reaches 15 milliseconds. The slow PPSE lasts approximately 1-2 minutes.

4-PEPs occur when the ionic channels of Na + or Ca2 + are opened, while PIPs when the channels  of K + or CI- are opened.

8 0
3 years ago
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