GENERAL HISTOLOGY

Detailed explanation-1: -The proventriculus (also known as the true stomach) is the glandular stomach where digestion primarily begins. Hydrochloric acid and digestive enzymes, such as pepsin, are added to the feed here and begin to break it down more significantly than the enzymes secreted by the salivary glands.

Detailed explanation-2: -Birds have a two part stomach, a glandular portion known as the proventriculus and a muscular portion known as the gizzard. Hydrochloric acid, mucus and a digestive enzyme, pepsin, are secreted by specialized cells in the proventriculus and starts the process of breaking down the structure of the food material.

Detailed explanation-3: -Birds all have two parts to their stomach. The first is called the proventriculus or glandular stomach, where digestive enzymes are secreted to begin the process of digestion. This part of the stomach is very much like our stomach.

Detailed explanation-4: -The proventriculus is the first part of the bird’s two-chambered stomach. The proventriculus secretes an acid used for breaking down food, and is best developed in birds that swallow entire fish or other animals containing bones which must be digested.