GREATER TUBERCLE Meaning and
Definition
-
The greater tubercle is a specific anatomical structure found in the human body, particularly in the upper limb. It is one of the prominent features of the humerus bone, which is the long bone located in the upper arm.
Specifically, the greater tubercle is a large, bony prominence located on the lateral side of the proximal end of the humerus. It sits to the side of the head of the humerus and provides attachment for several muscles and tendons involved in the movement of the shoulder joint and arm.
The greater tubercle serves as an anchor point for various muscles, including the supraspinatus, infraspinatus, and teres minor muscles of the rotator cuff. These muscles play a crucial role in the stability and mobility of the shoulder joint. Additionally, the greater tubercle also gives attachment to the deltoid muscle, which is responsible for the abduction and flexion of the arm at the shoulder joint.
As a prominent bony structure, the greater tubercle can often be palpated externally, providing important landmarks for healthcare professionals during physical examination and clinical procedures. Understanding the location and function of the greater tubercle is essential for diagnosing and treating conditions such as shoulder impingement, rotator cuff tears, and other shoulder-related injuries.
Etymology of GREATER TUBERCLE
The word "greater tubercle" is primarily used in the context of anatomy, specifically referring to a bony prominence found on the upper end of the humerus (the upper arm bone).
The etymology of "greater tubercle" can be understood by examining the origins of its constituent terms:
1. Greater: The term "greater" derives from the Old English word "gret", meaning big, large, or grand. It is related to the Proto-Germanic word "grootaz" and the Old Norse word "grōtr", both conveying the sense of being big or great.
2. Tubercle: "Tubercle" originates from the Latin word "tuberculum", which denotes a small rounded projection or bump. It is derived from the Latin word "tuber", meaning a swelling or lump.
