Difference Between Origin and Insertion
The places where muscles attach are referred to as the “origin” and “insertion” in anatomy. The following is the difference between insertion and origin:
Differences |
Origin |
Insertion |
---|---|---|
Meaning |
The site of the muscle’s attachment |
The end of the muscle at the site of connection |
Location |
The origin is often located nearer the midline of the body or the organ’s centre. |
In contrast to the origin, the insertion is often further distal—that is, deeper into the body. |
Movement |
A muscle’s origin is thought to be its more stable or fixed attachment place, hence its mobility is not a commonly understood. |
Joint position is altered as a muscle contracts because the insertion of the muscle moves in the direction of the origin. |
Muscular Mass |
It has more mass |
It has less mass |
Stability |
More stable during muscle contraction |
Less stable during muscle contraction. |
Examples |
Supraglenoid tubercle (long head), Coracoid process (short head) |
Radial tuberosity of the radius |
Difference between Origin and Insertion
Origin and Insertion are sites where muscles are attached. The beginning region of a muscle at the site of attachment is referred to as its origin. The origin is usually found nearer the midline of the body or the organ’s center. The place of connection where a muscle ends is referred to as the muscle’s insertion. The insertion is often found farther from the midline or the center of an organ than the origin and more distal, or away from the center of the body. When muscle fibers contract, they pull on the insertion site, causing this movement.
Table of Content
- Difference between Origin and Insertion
- What is Origin?
- What is Insertion?
- Importance of Origin and Insertion
- Examples of Origin and Insertion
- Conclusion – Difference between Origin and Insertion