HISTOLOGY

In this eLearning module, you will learn about Bones. The adult human skeleton is made up of 206 bones. These include the bones of the skull, spine, ribs, arms, and legs. Bones provide the structure of our body. bones have different shapes related to their particular function. There are five types of bones in the skeleton; flat, long, short, irregular and sesamoid.

In this eLearning module, you will learn about Blood Vessels. Blood vessels are channels that carry blood throughout our body. The human body contains about 60,000 miles of blood vessels. They form a close loop, like a circuit, that begins and ends at our heart. The function and structure of blood vessels can be affected by a number of different diseases and conditions.

In this eLearning module, you will learn about Cartilage. Cartilage is a connective tissue found throughout the body. It is a firm tissue but is softer and much more flexible than bone. It is avascular and its microarchitecture is less organized than bone. It is made up of specialized cells called chondrocytes.

In this eLearning module, you will learn about Glands. Glands are Invaginations of epithelial tissue. They are located throughout our body. It is the organ that makes one or more substances such as hormones, digestive juices, sweat, tears, saliva, or milk. Though the human body consists of many glands they mainly fall into two types, endocrine and exocrine. Endocrine glands release the substances directly into the bloodstream and exocrine glands release the substances into a duct or opening to the inside or outside of the body.

In this eLearning module, you will learn about Epithelia. Epithelia are continuous sheets of cells that cover the exterior surface of the body, line internal closed cavities, and body tubes that communicate with the outside environment. They perform a variety of functions which include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.