Morphological, anatomical and histological : studies on goose tongue

Abstract EN

The tongue of goose was analyzed macroscopically and by light microscope.

Macroscopic analysis showed a clear median longitudinal groove along the anterior to posterior half of tongue.

The root of tongue have central circular depression.

Cylindrical lingual papillae were detected on sides of tongue in addition to conical papillae found in root of goose tongue.

Also the macroscopic studies appeared elongated shape with rounded tip about 7 cm in length.

The width of anterior part 1.1 cm changing to the posterior region to 1.3cm.

Histological analysis Showed three zone anterior, middle, and posterior parts.

The anterior part covered externally by keratinized non cellular stratified sequamous epithelial tissue, deep to it lamina properia with skeletal cells and phagocytes with collagen fibers intermingled with skeletal muscle.

under skeletal muscle the adventitia consist of adipose tissue.

While the middle part consist of stratified sequamous epithelial tissue more cellular than anterior, the lamina properia consist of skeletal muscle intermingled with few collagen fiber.

The posterior parts consist of stratified sequamous epithelium but there are crypt formation.

Lamina properia of posterior part contain thick skeletal muscle layer and more of salivary glands.

Also we find that the posterior part contain cartilage in between adipose tissue under lamina properia.