musculus teres minor
Học thuậtThân thiện
Definition
- Noun:
- A specific skeletal muscle of the shoulder: The musculus teres minor is one of the four rotator cuff muscles. It is a narrow, elongated muscle located on the posterior aspect of the scapula and shoulder joint.
- Primary functions: Its main actions are to externally rotate (laterally rotate) the arm at the shoulder joint and to assist in adduction (drawing the arm toward the body).
Usage Examples
- Noun:
- A tear in the musculus teres minor can cause significant shoulder pain and weakness.
- During the anatomy exam, the students were required to identify the origin and insertion of the musculus teres minor.
- Strengthening exercises for the musculus teres minor are important for shoulder stability.
Advanced Usage
- Clinical/Medical Context: The term is primarily used in medical, anatomical, kinesiology, and physical therapy contexts.
- The MRI revealed tendinopathy in the musculus teres minor.
- In relation to other structures: It is often discussed as part of the rotator cuff musculature (along with the supraspinatus, infraspinatus, and subscapularis).
- The musculus teres minor works in synergy with the infraspinatus to produce external rotation.
Variants and Related Words
- Teres minor: A common abbreviated form used interchangeably with "musculus teres minor." "Teres" means rounded and "minor" means smaller.
- The teres minor originates from the lateral border of the scapula.
- Rotator cuff muscle: A categorical term describing its functional group.
- External rotator: A functional description of its primary action.
Synonyms
- Teres minor muscle: The full, synonymous anatomical term.
- Small teres muscle: A direct, descriptive translation (less common in professional use).
Related Phrases
- Teres minor tendon: Refers specifically to the tendon of this muscle, which attaches to the humerus.
- The inflammation was localized to the teres minor tendon.
- Teres minor innervation: Refers to the nerve supply (the axillary nerve) to this muscle.
- An injury to the axillary nerve can paralyze the teres minor innervation.
Notes
- This is a specialized anatomical term. In general conversation, it is simply called the "teres minor" or referred to as part of the "rotator cuff."
- It is distinct from the musculus teres major, a larger muscle located nearby with different functions (internal rotation and adduction).
Noun
- teres muscle that adducts the arm and rotates it laterally