Digestive Tissues

Identifiable Characteristics:

- acini cells (refer to endocrine)

- islet cells (refer to endocrine)

Main Function(s): Facilitates mechanical digestion by constricting the stomach lumen, aiding in the mixing and movement of food (chyme) during digestion.

Identifiable Characteristics:

A. Villi

B. Bruner's Glands

C. Crypts (of Lieberkühn)

Identifiable Characteristics:

A. Peyer's Patches

Main Function(s): The ileum is responsible for the absorption of nutrients, especially vitamin B12 and bile acids. It also helps to protect the gut from harmful microorganisms through immune responses.

Main Function(s): The jejunum is primarily responsible for the absorption of nutrients, such as carbohydrates, proteins, fats, and vitamins. It has a large surface area to facilitate efficient nutrient absorption.

EDIT !!!

Main Function(s): The jejunum is primarily responsible for the absorption of nutrients, such as carbohydrates, proteins, fats, and vitamins. It has a large surface area to facilitate efficient nutrient absorption

Main Function(s): Liver lobules are responsible for metabolizing nutrients, detoxifying substances, and synthesizing proteins. Blood flows through the sinusoids, where exchange of nutrients and waste products takes place, before collecting in the central vein.

Extra: The pointer is pointing to the central vein, which collects blood from the sinusoids after nutrient and waste exchange.