Camera (anatomy)

Camera (anatomy)

Camerae (singular camera) are the spaces or chambers enclosed between two adjacent septa in the phragmocone of a nautiloid or ammonoid cephalopod. These can be seen in cross-sections of a nautilus shell and in the polished cross-sections of ammonites. In life these chambers are filled with gas, mediated by the siphuncle, and used to control buoyancy.

Some Palaeozoic nautiloid genera, especially those with long, straight shells, are distinguished by "Cameral Deposits". These were accumulations of calcium carbonate secreted in the empty chambers of the shell, used for ballast and control of buoyancy. The nature and form of these deposits are very useful in nautiloid classification.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Camera (disambiguation) — Camera may refer to:* Camera, a device used to take photographs, either singly or in sequence ** Still camera, a device used to take photographs, singly *** Instant camera, a type of camera with self developing film ** Digital camera, an… …   Wikipedia

  • Camera (biology) — In biology, Camera can refer to:* Camera (anatomy), spaces or chambers enclosed between two adjacent septa in the phragmocone of certain cephalopods * Camera (wasp) , a wasp genus …   Wikipedia

  • Anatomy of a Drum Solo — Infobox music DVD Name = Anatomy of a Drum Solo Type = DVD Artist = Neil Peart | Released = December 12, 2005 Recorded = 2004 2005 Genre = Progressive rock Length = 200 minutes Label = Hudson Music / Rounder Records Producer = Neil Peart Reviews …   Wikipedia

  • Anatomy of t.A.T.u. — Infobox Film name = Anatomy of t.A.T.u. image size = director = Vitaly Mansky producer = starring = t.A.T.u. Ivan Shapovalov music = t.A.T.u. cinematography = Vitaly Mansky editing = distributor = STS released = December 12, 2003 2004 (DVD)… …   Wikipedia

  • Grey's Anatomy — This article is about the television series. For the textbook, see Gray s Anatomy. For other uses, see Gray s Anatomy (disambiguation). Grey s Anatomy Genre Medical drama …   Wikipedia

  • Debrecen University Anatomy Scandal — The Debrecen University Anatomy Scandal is an academic dispute regarding medical students at University of Debrecen allegedly accessing the dissecting rooms of the Anatomy department illegally and smuggling body parts out to their dorms and… …   Wikipedia

  • Gross anatomy — is the study of anatomy at the macroscopic level. The term gross distinguishes it from other areas of anatomical study, including microscopic anatomy, which must be studied with the aid of a microscope.Techniques of studyGross anatomy is studied… …   Wikipedia

  • Gray's Anatomy (film) — Gray s Anatomy is an 80 minute motion picture directed by Steven Soderbergh in 1996 involving a dramatized monologue by actor/writer Spalding Gray. The title is taken from the classic human anatomy textbook, Gray s Anatomy , originally written by …   Wikipedia

  • Lens (anatomy) — Crystalline lens (anatomy) Light from a single point of a distant object and light from a single point of a near object being brought to a focus by changing the curvature of the lens …   Wikipedia

  • What I Am (Grey's Anatomy) — Infobox Television episode | Title = What I Am Series = Grey s Anatomy Season = 3 Episode = 4 Guests = Chris O Donnell (Dr. Finn Dandridge),; Fred Ward (Denny Duquette Sr.); Stephanie Faracy (Mrs. Sullivan); Tina Holmes (Rebecca Bloom); Alan… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”