HISTOLOGY

Histology is a broad category and it is divided to: The structure of the skin, muscle cells, and the nerves.

Muscle is split into another 3 categories: skeletal muscle (striated and under voluntary control), smooth muscle (non-striated and under involuntary control), and cardiac (striated muscle but is under involuntary control). More about each muscle type can be learned in our article on the ultrastructure of muscles.

In the article on the structure of nerves, you will learn more about the classification of neurons and their structure. For example, some neurons can be unipolar– have one process coming off their cell body. Whereas others can be bipolar-having two processes that come off the cell body.

The skin is divided into 3 main layers: the outermost epidermis, dermis in the middle, and hypodermis lying deepest.

In this section, learn more about tissue ultrastructure– the lymphatic system, blood vessels, bone, muscle, nerves, and skin.