HUMAN NUTRITION

Detailed explanation-1: -The gizzard is a muscular part of the stomach that uses grit to grind grains and fiber into smaller particles.

Detailed explanation-2: -The word caeca (SEE-kah) is plural for caecum (SEE-kum) because birds usually have two of them. The function of the caeca is to aid in the absorption of water and proteins, and the microbial decomposition of fiber. the intestine and no digestion or absorption of food takes place here.

Detailed explanation-3: -Avian ceca span a wide range of morphological types, from essentially absent to small and lymphoid to large and glandular1, 4. They serve various diverse functions, including fermentation, water absorption, digestion, and immunity, which may be performed to varying degrees in different species and cecal types.

Detailed explanation-4: -The caeca play a role in the transport of water, sodium, potassium, and chloride, the dominant effect being that of sodium transport.