A-v node

ANS connects to SA node via dual innervation: First from sympathetic nervous system (Spinal nerve T1-4) Second from parasympathetic nervous system(Cranial nerve CN-X) Sympathetic stimulation lead to increase rate of SA impulses so ...

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... the regulation of the heartbeat. After having dome some research, I've gotten myself confused. Basically, I know that the impulse starts in the SA node --> AV node --> Bundle of His --> Purkinje fibres. However, I've also read that the ANS plays a role in the regulation, along with its ...

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... of lymphocyte differentiation take place in the peripheral tissues. Often this peripheral tissue is a secondary lymphoid tissue, such as a lymph node, but also circulating naive CD45RA+ lymphocytes in the blood or at the site of infection switch to CD45RO+ memory phenotype if they encounter their ...

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... As for the pacemaker fibers of the heart, there is much more to be said. You need to understand that the SA node can maintain a steady rhythm of 80 beats/minute ON ITS OWN, without any nerves (it still does that if you take the heart out of the body and put ...

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Hey, thanks for the info dealing with the sinoartial node, I will try to find which nerve responisble for the controlment. But if you can find it as well when ever you get free time that would help me a great deal. I mean you broke it down beyond the ...

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