Learning on ScreenDevelopment in the Sea Urchin ‘Psammechinus Miliaris’ (4 Parts)
- Synopsis
- 4 (1978): Schematic animation and in vivo sequences demonstrate stages in the development of the coelom in the young pluteus and of the sea urchin anlage in the more advanced pluteus until readiness for metamorphosis.
- Language
- English
- Country
- Germany
- Medium
- Video; Videocassette. VHS. col. 11, 10, 11, 12 min.
- Year of production
- 1982
- Availability
- Sale; 1996 sale: £25.00 (+VAT +p&p) each
- Subjects
- Biology
- Keywords
- sea urchins
Credits
Sections
- Title
- Fertilization and cleavage
- Synopsis
- 1 (1976): Penetration of sperm into the egg; raising the fertilisation membrane; fusion of the pronuclei; cleavage sequence to blastula.
- Title
- Gastrulation and larval stages
- Synopsis
- 2 (1976): Ingrowth of primary mesenchymal cells; invagination; outgrowth of secondary mesenchymal cells; coelom formation; production and growth of spicules; various pluteus larval stages.
- Title
- Metamorphosis
- Synopsis
- 3 (1982): The 'dissolution' of the larval body is shown with time-lapse photography. The transition from the bilateral symmetry of the pluteus to the star-shaped radial symmetry is explained in an animated sequence. The metemorphosis is induced by the add
- Title
- Differentiation of the coelom
- Synopsis
- 4 (1978): Schematic animation and in vivo sequences demonstrate stages in the development of the coelom in the young pluteus and of the sea urchin anlage in the more advanced pluteus until readiness for metamorphosis.
Production Company
Distributor
- Name
Learning on Screen - the British Universities and Colleges Film and Video Council
- services@bufvc.ac.uk
- Web
- http://bufvc.ac.uk External site opens in new window
- Phone
- 020 3743 2345
- Address
- York House
221 Pentonville Road
London
N1 9UZ - Notes
- The Learning on Screen distribution library is currently only available in part. Please contact us with any individual queries. The two series of InterUniversity History Film Consortium films which make extensive use of archive footage been digitised for free, online viewing by UK HE institutions - see Learning on Screen InterUniversity History Film Consortium Films (qv).
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