Species difference

THYMUS
( Sheep, Goat, Horse, Pig, Dog, Rabbit, Fowl )

Species difference

Sheep and Goat

  • It resembles ox

Horse

  • In the newborn foal it is greyish pink and consists of right and left lobes
  • The greater part of the gland is situated in the cranial mediastinum but the two lobes are continued into the neck by a chain of lobules, which lie on the trachea along the course of the carotid artery extending sometimes as far as the thyroid gland
  • The cervical part however is very variable

Pig

  • In young ones, it is very large extending to the larynx or even to the mandibular space

Dog

  • It is small and situated almost entirely in the thoracic cavity
  • The left lobe is larger than the right

Rabbit

  • As in ox

Fowl

  • The thymus is well developed in young chicks; the lobules are extending along the neck on either side
Last modified: Saturday, 21 April 2012, 6:13 AM