Anatomy


Anatomy is the branch of science that deals with the structure of the body parts of living things. How they are formed and how they are arranged. Anatomy is concerned with gross and microscopic (histology) observation of the body's structures with the aim of describing them with as much accurate detail as possible. The study of anatomy is closely related to, and coupled with, physiology, which deals with the functions of the body parts.

human anatomy

The following page lists the pages at Ground Up Strength concerning anatomy or that refer to anatomy:

The Intrinsic Muscles of the Hand: Thenar, Hypothenar, Interossei and Lumbricals Muscles

The muscles that move the hand are divided into two groups, the extrinsic and intrinsic muscles. The extrinsic muscles of the hand are the powerful flexor and extensor muscles of the forearm. These muscles originate outside the hand and insert within the hand. Since they are located and originate on the forearm outside the hand itself, they are called extrinsic which comes from the Latin word extrinsecus meaning "on the outside".

There are also small muscles located within the structure of the hand itself. Since these muscles both originate and insert within the hand, they are referred to as intrinsic muscles. The word intrinsic comes from the latin word intrinsecus. The intrinsic muscles of the hand can be further divided into four groups, the thenar, hypothenar, interossei (dorsal and palmar), and lumbrical muscles.[Bibliography item wheelesintrinsic not found.][Bibliography item behnke not found.]

The intrinsic muscles that control the thumb, unlike those of the fingers, are actually stronger than the extrinsic thumb muscles.
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Continue Reading » The Intrinsic Muscles of the Hand: Thenar, Hypothenar, Interossei and Lumbricals Muscles


Mastoid Process of the Skull

The mastoid process is one of two projections in the lower rear of the skull that lie below each external auditory meatus on the mastoid portion of the temporal bone.1,2.

Continue Reading » Mastoid Process of the Skull


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