Biomaterial Database

[Comparative anatomy of the spinal cord of semi-aquatic, aquatic and terrestrial mammals]. 1978

E I Sobolevskiĭ

Skeletotopically, cervical thickening of the spinal cord in semiwater mammals (Callorhinus ursinus, Eumetopias jubatus, Phoca larga, Phoca kurilensis, Enhydra lutris) corresponds to 4--5, and in terrestrial mammals (Ursus arctos, Vulpes vulpes)--to 3--6 cervical vertebrae. Lumbar thickening in terrestrial spicies and in Enhydra lutris is situated more caudally from the thoracic portion than in Phocidae. In a typically water animal (Phocaenoides dalli) the cervical thickening is expressed feebly, the lumbar one is absent, the epidural space is developed better than in terrestrial and semiwater animals. In Phocidae, comparing terrestrial species, bringing together of the nerve fasciculi taking their origin from the spinal cord is observed, a powerful development of a "horse tail", elongation of nerve bands, going from the spinal cord to spinal ganglia. The relative length of the spinal cord in semiwater and water animals is less than in terrestrial ones. It is stated that differences in spinal cord construction and topography of the animals in question are closely connected with their environmental conditions, functional loading and locomotor peculiarities.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009929	Organ Size	The measurement of an organ in volume, mass, or heaviness.	Organ Volume,Organ Weight,Size, Organ,Weight, Organ
D010041	Otters	Fish-eating carnivores of the family MUSTELIDAE, found on both hemispheres.	Aonyx,Clawless Otters,Giant Otters,Lontra,Lutra,Pteronura,Sea Otters,Enhydra lutris,Lontra canadensis,North American River Otter,Clawless Otter,Giant Otter,Otter,Otter, Clawless,Otter, Giant,Otter, Sea,Otters, Clawless,Otters, Giant,Otters, Sea,Sea Otter
D010872	Caniformia	Suborder of dog-like carnivores which include dogs, coyotes, skunks, mustelids, walruses, seals, bears, and procyonids.	Pinnipedia,Pinnipeds
D002335	Carnivora	An order of MAMMALS, usually flesh eaters with appropriate dentition. Suborders include the terrestrial carnivores Fissipedia, and the aquatic carnivores CANIFORMIA.
D005260	Female		Females
D006168	Guinea Pigs	A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research.	Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D000367	Age Factors	Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.	Age Reporting,Age Factor,Factor, Age,Factors, Age
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001503	Ursidae	The family of carnivorous or omnivorous bears, having massive bodies, coarse heavy fur, relatively short limbs, and almost rudimentary tails.	Ailuropoda,Bears,Black Bears,Giant Pandas,Grizzly Bears,Pandas, Giant,Pandas, Greater,Polar Bears,Spectacled Bear,Tremarctos,Ursus,Bear,Bear, Black,Bear, Grizzly,Bear, Polar,Bear, Spectacled,Bears, Black,Bears, Grizzly,Bears, Polar,Bears, Spectacled,Black Bear,Giant Panda,Greater Panda,Greater Pandas,Grizzly Bear,Panda, Giant,Panda, Greater,Polar Bear,Spectacled Bears