File:Gray1236.jpg

Right Upper Limb

Back of right upper extremity, showing surface markings for bones and nerves.

Nerves

In the arm the line of the median nerve is practically the same as that for the brachial artery; at the bend of the elbow the nerve is medial to the artery. The course of the nerve in the forearm is marked by a line starting from a point just medial to the center of one joining the epicondyles, and extending to the lateral margin of the tendon of Palmaris longus at the wrist.

Ulnar nerve

• follows the line of the brachial artery in the upper half of the arm, but at the middle of the arm it diverges and descends to the back of the medial epicondyle.
• In the forearm it is represented by a line from the front of the medial epicondyle to the radial side of the pisiform bone.

Radial nerve

• course can be indicated by a line from just below the posterior axillary fold, to the lateral side of the humerus at the junction of its middle and lower thirds
• thence it passes vertically downward on the front of the arm to the level of the lateral epicondyle.
• course of the superficial radial nerve is represented by a continuation of this line downward to the junction of the middle and lower thirds of the radial artery; it then crosses the radius and runs distalward to the dorsum of the base of the first metacarpal bone.

Axillary nerve

• crosses the humerus about 2 cm above the center of a line joining the tip of the acromion to the lower edge of the deltoid tuberosity.

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Historic Disclaimer - information about historic embryology pages

Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)

iBook - Gray's Embryology

iTunes link | iBooks Store Description - an extract of the embryology content from Anatomy of the Human Body By Henry Gray Philadelphia: Lea & Febiger, 1918. Releases First Edition - Jan 2012 Second Edition - March 2012 Repaired formatting and image display issues related to Pad rotated display and minor editing issues. Print length 169 pages, 41.6 MB, Language English. The current website also includes numerous images from this textbook, see Anatomy of the Human Body by Henry Gray and Category:Gray's 1918 Anatomy. Note the also Historic Disclaimer.

Reference

Gray H. Anatomy of the human body. (1918) Philadelphia: Lea & Febiger.

Cite this page: Hill, M.A. (2024, April 27) Embryology Gray1236.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Gray1236.jpg

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