Which of the following structures of the pericardium is insensitive to pain:
Correct Answer: Visceral layer of Serous pericardium
Description: Answer is C (Visceral layer of Serous pericardium) The visceral layer of serous pericardium is insensitive to pain. The visceral layer of the serous pericardium is supplied by the sympathetic trunk and branches of the vagus nerves which are Pain Insensitive Note : The pain of pericarditis typically originates only from the pain sensitive parietal layer (lower two thirds) and is transmitted by the phrenic nerve. Pain from the hea(angina) originates in the muscles and vessels and is transmitted by sympathetic nerves Fibrous pericardium and Parietal layer of the Serous Pericardium are supplied by the phrenic nerve and are pain sensitive Nerve Supply of The Pericardium Phrenic nerves (C3-05) (This is the primary source of sensory fibres) Pain sensations conveyed by these nerves are commonly referred to the skin (C3 -05 dermatomes) of the ipsilateral supraclavicular region (top of the shoulder of the same side). Vagus nerve (Their function is unceain) Sympathetic trunks (Vasomotor)
Category:
Medicine
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now