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KMID : 0376219750120020347
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Chonnam Medical Journal
1975 Volume.12 No. 2 p.347 ~ p.354
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The Autonomic Innervation of the Oviductus Proprius and Vagina Uteri in the Hen-Effects of Some Autonomic Drugs on the Muscle Strips of Isolated Oviductus Proprius and Vagina Uteri
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Abstract
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It has been well known that female genital organ is innervated by sympathetic fibers from the hypogastric nerve and parasympathetic fibers from pelvic nerve. However, functional significance of these innervations is not fully understood. Most of the previous works on the role of autonomic nerves to the female genital organ have been done in the mamalian. In this work, using .muscle: strips of the Oviductus proprius and, Vagina uteri in the hen, effects of some autonomic drugs were studied to explore the action of the- autonomic-nerves distributed to these organs. Theresult obtained were-as follows.
1. Epinephrine and norepinephrine elicited contraction of the Oviductus pros prius muscle and relaxation of the Vagina uterii muscle."
2. The contractile response of the Oviductus proprius to epinephrine was abolished and reversed to relaxation-response by- pretreatment with regitine, and the reversed relaxation-response was- completely abolished by pretreatment with propranolol.
3. The relaxation-response of the Vagina uteri to epinephrine and norepinephrine was abolished and reversed to contractile response by, pretreatment .with Propranolol, and the reversed contractile response was completely abolished by Pretreatment with regitine.
4. Acetylcholine evoked a marked contraction of both Oviductus proprius and Vagina uteri, and the effect was completely abolished by pretreatment of atropine.
5. These experimental evidences suggest that the Oviductus proprius and Vagina uteri are under the innervation of adrenergic and cholinergic fibers, these organs contain both. alpha and beta-receptors, and the alpha -receptor, seem to be dominant in the Oviductuss proprius and ,the beta-receptor in the Vagina uteri.
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