i am a new member here...nice to be with all of you.Here i got a question,where is the nerve locates in blood vessels?i can't find the answer on our textbook,so ,hope anyone who know it can let me untie the doubts,thank you!!see you around
My dear
your question is very good. But think ,all parts of our body are controlled by brain. So find out, if you are a medical student. If you will go in deep study ,you can find .try again and again.
Dr satish verma
gurgaon hr.
Ok,i will try and write down my answer here as soon as i find it...thank you for your encouragement and attention to my question. All my best
I think there is no nerve supply to the blood vessels, their function (what so ever) is controlled by the hormones secreated by glands carried by the blood, causing to them to dialate or sueeze.
Nerve supply is mainly to the musculature and glands (affectors).
That sounds reasonable too.......
Now i know it isn't an easy question as i thought before
thank you for all your attention
nervi vacularis enter the blood vessels through tunica adventatia and penetrrate enough to supply smooth muscle.These are the extension of sympathetic nervous system and are under adrenal medullary hormones.
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Most blood vessels that contains smooth muscles in their walls are supplied with profuse network of unmyelinated sympathetic nerve fibers (vasomotor nerves) whose neurotransmitter is norepinephrine, discharge of this norepinephrine from these nerves results in vasoconstriction., situated in the tunica media
It depends on the type of blood vessels. Arterioles usually receive sympathetic and parasympathetic nerve fibres. They build a network of fibres in the adventitia next to the smooth muscle layer. Larger arteries receive vasa nervorum which can travel into the outer 1/3 of the vessel (eg pulmonary artery). In addition to factors released from the endothelium, moleculaes such as noadrenalin (sympathetic), acetylcholine (parasympathetic) and neuropeptides (substance P, vasoactive intestinal peptide (VIP) etc.) are released from varicosities of non-adrenergic non-cholinergic (NANC) fibres.
Hope that helps
No doubt, it helps. Although the my anatomy lesson had come to an end, I learned a lot from u the attitude towards science research. I will come here more frequently in the future.
kindly find out the meaning of vasa vasorum and vasa nervosum.Thanks
Kindly find out the various types of corpuscles(eg. meisner's corpuscle)
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