What is abomasum?
In *Ruminantia, the fourth and final region of the specialized stomach, corresponding to the stomach in other mammals and the zone in which digestion proceeds with the usual mammalian digestive “enzymes.
Archive for the 'Comparative Anatomy' Category
Function of some important protozoans in ruminant stomach
In the ruminant stomach as in of cattle and sheep each ml of fluid in the rumen (anterior stomach) contains up to a million ciliate protozoa of many species, mostly entodiniomorphs and trichostomes. The ciliates are anaerobes tolerating low levels of oxygen. The entodiniomorphs ingest and break down plant fragments and both trichostomes and bacteria [...]
Comparative Account of Stomach in Vertebrates
The digestive tract and associated accessory organs together constitute the digestive system. The basic structure of digestive tract is not similar in all vertebrates. Stomach is a very specialized portion of the digestive tract. The sac-like muscular enlargement of digestive tract between oesophagus and intestine is called stomach. It acts as temporary storage place of [...]
Comparative account of scales in vertebrates
Epidermal Scales After the evolutionary loss of dermal scales of fishes, amniotes developed an entirely new type of scale derived from the epidermis. The skin of vertebrates is rarely naked, it is usually provided with protective scales, bony plates, feathers or hairs. There are no epidermal scales in fishes and amphibians, they appear for the [...]
Function of Integument
Function of Integument 1. Protection: The integument forms a covering of the body and is protective. i. It protects the body against entry of foreign body and mechanical injuries. ii. It protects the tissues against excessive loss of moisture. iii. It forms protective derivatives, such as scales, bony plates, layer of fat, feathers, and hairs. [...]
