Avian Tongue - Anatomy & Physiology

ALIMENTARY SYSTEM AVIAN DIGESTIVE TRACT

Introduction

The size and structure of the avian tongue varies between species. It is related to functional requirements.

Avian Tongue - Copyright RVC 2008

Structure and Function

• Narrow

• Pointed

• Contains little intrinsic muscle

• The enteroglossal bone is present consisting of bone and cartilage with medullary spaces containing red marrow

• Supported by the lingual process of the hyoid bone

• Rudimentary lingual muscles

• Striated muslce fibres

Histology

• A few caudally directed horny papillae are present

• Thick stratified squamous epithelium

• Keratinised

• Mucoid glands

• No taste buds

• Lymphatic tissue spread throughout the corium

Species Differences

• Parrots use their muscular tongue to lap water

• Parrots use their muscular tongue to produce human sounds (see here)

Test yourself with the Avian Alimentary Tract Flashcards

Avian Alimentary Tract Flashcards

Links

Tongue - Anatomy & Physiology