File:Gray0916.jpg

Middle Ear - Malleus

Left malleus. A. From behind. B. From within.

• named from its fancied resemblance to a hammer
• consists of a head, neck, and three processes
  • the manubrium, the anterior and lateral processes

Head (capitulum mallei)

• large upper extremity of the bone
• oval in shape
• articulates posteriorly with the incus
• being free in the rest of its extent
• facet for articulation with the incus is constricted near the middle
  • consists of an upper larger and lower smaller part
  • form nearly a right angle with each other.
• opposite the constriction
  • lower margin of the facet projects in the form of a process (cog-tooth or spur of the malleus)

Neck (collum mallei)

• narrow contracted part
• just beneath the head
• below it is a prominence
  • which the various processes are attached

Handle (manubrium mallei)

• connected by its lateral margin with the tympanic membrane
• directed downward, medialward, and backward
• decreases in size toward its free end, which is curved slightly forward, and flattened transversely
• medial side, near its upper end, is a slight projection, into which the tendon of the tensor tympani is inserted

(text modified from Gray's Anatomy)

Gray's Images: Development | Lymphatic | Neural | Vision | Hearing | Somatosensory | Integumentary | Respiratory | Gastrointestinal | Urogenital | Endocrine | Surface Anatomy | iBook | Historic Disclaimer

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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, June 26) Embryology Gray0916.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Gray0916.jpg

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