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Endoderm.

What embryonic structure does the median umbilical ligament come from?

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What does the 2nd pharyngeal pouch develop into?

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What are the 2nd branchial arch derivatives innervated by?

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What are hernias?

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What is the histologic presentation of DiGeorge's syndrome?

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A 55 yr. old man enters the emergency room after sudden onset of excruciating pain in his chest that radiates down the medial aspect of his left arm ? classic symptoms for a heart attack. Explain why the man feels pain in his left arm. What nerves would the pain fibers travel in?

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Your patient has diffuse periumbilical pain. Which conditions could be responsible for your patient?s pain?

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What 2 spinal roots make up the inferior trunk of the brachial plexus?

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Do continuous masturbation leads to premature ejaculation?

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After recuperating from a gunshot wound to the buttocks resulting from a hunting accident, your patient exhibits a positive Trendelenburg's sign. Explain.

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Intrafusal fibers are encapsulated and make up muscle spindles that send their signal via what nerve?

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What do Brunner's glands secrete?

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