Reproduction
Object numberRCSHC/3503
Scientific nameBos taurus indicus
CollectionHunterian
CategoryWet preparations
Object nameplacenta, Products of generation - Mammals, Mounted wet tissue
DescriptionA complete placental cotyledon from a cow, with the surrounding chorion.
The maternal cotyledon has been severed from its pedicle attachment to the uterine wall. The foetal villi have been withdrawn from the maternal crypts to show their feathery form and the loose connection between the villi and the crypt.
Ruminants have cotyledonary placentas. Instead of having a single large area of contact between maternal and foetal vascular systems, these animals have numerous smaller placentas called cotyledons.
Production date 1760 - 1793
Preparator
Owner/user
presented
Physical Location
LocationOn display in the Hunterian Museum, Room 4: The Long Gallery
Physical Information
Physical descriptionWet preparation of tissue mounted in an oval glass jar with a glass lid.
Materialglass (material)
Bos
Dimensions
whole height: 202 mm
whole width: 139 mm
whole depth: 87 mm
whole weight: 1982 g
whole width: 139 mm
whole depth: 87 mm
whole weight: 1982 g
Bibliography
SourceDobson 1970-71
Transcript3503: An entire placental cotyledon of a Cow with the surrounding parts of the chorion. The maternal cotyledon has been severed from its connection with the rest of the uterine wall by the section of its pedicle of attachment and is seen from the uterine aspect. Its pedicle is narrow and for a small area around it the surface of the cotyledon is smooth, but with this exception the surface is honey-combed with crypts for the reception of the villi of the foetal cotyledon. Along the margin of the cotyledon the foetal villi have been withdrawn from the maternal crypts, thus showing their feathery branching form and the loose connection there is between them and the crypts within which they are lodged. Upon the reverse of the specimen can be seen the smooth and comparatively non-vascular wall of the allantois by which the chorion is lined.
