The pouch connected to the junction of the small intestine and the large intestine is called:

caecum

The correct answer is Option (3) -caecum

The pouch connected to the junction of the small intestine and the large intestine is called: Caecum

The caecum is a pouch-like structure located at the junction of the small intestine (ileum) and the large intestine (colon) in the digestive system of many vertebrates, including humans. It serves as a site for the fermentation of plant material and the absorption of certain nutrients, particularly in herbivorous animals. In some species, such as rabbits and certain rodents, the caecum is particularly large and plays a crucial role in digesting cellulose and other complex carbohydrates present in their diet. However, in humans, the caecum is relatively small and has a limited role in digestion, although it does contribute to the absorption of water and electrolytes.