Howship lacuna

Howship lacunae ( Lacuna erosionis , also: resorption lacunae ) are flat bulges in the bone matrix where the remodeling of bones takes place.

The osteoclast-containing bony lacunae were named after John Howship (1781–1841), a member of the Council of Surgeons who worked in London as a surgeon and pathological anatomist, primarily in the field of bone research.

Howship lacunae arise from the resorption of bone substance on the surfaces of the trabeculae of the substantia spongiosa. They are signs of the ongoing bone remodeling. Active osteoclast groups eat their way through the bone where remodeling is necessary. The resulting bays are called Howship lacunae , in which new bone lamellae are then formed by osteoblasts . This explains the irregular lamellar pattern of the trabeculae in many places. The result of the remodeling process gives the bone density .

In the substantia compacta , there are no Howship lacunae, but drilling channels the size of a new osteon .

literature

Renate Lüllmann-Rauch: pocket textbook histology. 4th, completely revised edition. Thieme, Stuttgart et al. 2012, ISBN 978-3-13-129244-5 , pp. 157, 163.

Web links

Entry on Howship-Lakune in Flexikon , a Wiki of the DocCheck company

Individual evidence

^ John Howship, Practical Observations in Surgery, and Morbid Anatomy. Illustrated by Cases. Longman et al., London 1816, ( digitized ; in German: observations on the healthy and pathological structure of the bones and attempt to sort out the diseases of the same. From the English by Ludwig Cerutti . Magazine for Industry and Literature, Leipzig 1822).
^ Heinz-Peter Schmiedebach : Howship, John. In: Werner E. Gerabek Bernhard D. Haage, Gundolf Keil , Wolfgang Wegner (eds.): Enzyklopädie Medizingeschichte. Walter de Gruyter, Berlin et al. 2005, ISBN 3-11-015714-4 , p. 632.

[1] John Howship, Practical Observations in Surgery, and Morbid Anatomy. Illustrated by Cases. Longman et al., London 1816, ( digitized ; in German: observations on the healthy and pathological structure of the bones and attempt to sort out the diseases of the same. From the English by Ludwig Cerutti . Magazine for Industry and Literature, Leipzig 1822).

[2] Heinz-Peter Schmiedebach : Howship, John. In: Werner E. Gerabek Bernhard D. Haage, Gundolf Keil , Wolfgang Wegner (eds.): Enzyklopädie Medizingeschichte. Walter de Gruyter, Berlin et al. 2005, ISBN 3-11-015714-4 , p. 632.