Small Intestine and Skin Layers for Medical Terminology Exam

A set of flashcards to help study the sequences of the small intestine and layers of the skin for a medical terminology exam.

Duodenum

The first segment of the small intestine.

Jejunum

The second segment of the small intestine.

Ileum

The third segment of the small intestine.

Role of the duodenum

It receives chyme from the stomach and digestive enzymes from the pancreas and bile from the liver.

Functions of the jejunum

Major site for nutrient absorption, particularly carbohydrates and proteins.

Ileum absorption

Primarily absorbs Vitamin B12 and bile salts.

Surface area structures in small intestine

Villi and microvilli increase the surface area for absorption.

Epidermis

The outermost layer of the skin.

Dermis

The layer that lies beneath the epidermis.

Hypodermis

The deepest layer of the skin, also known as the subcutaneous layer.

Function of the epidermis

Provides a barrier to protect underlying tissues.

Contents of the dermis

Contains blood vessels, nerve endings, hair follicles, and glands.

Role of the hypodermis

Acts as an insulator and shock absorber, anchoring the skin to underlying structures.

Keratinocytes

The primary cells found in the epidermis.