Musculus Intercostalis (Noun)
Meaning
Muscles between the ribs; they contract during inspiration.
Classification
Nouns denoting body parts.
Examples
- The musculus intercostalis externus is the outermost layer of intercostal muscles between the ribs.
- During inspiration, the musculus intercostalis externus contracts to help expand the chest cavity.
- The musculus intercostalis internus is a layer of intercostal muscles between the ribs that assists in forced expiration.
- The musculus intercostalis is divided into three layers: externus, internus, and intimus, each with distinct functions.
- Contraction of the musculus intercostalis externus during inspiration helps to increase the volume of the thoracic cavity.