What does tuberosity in bone mean?
Tuberosity – A moderate prominence where muscles and connective tissues attach. Its function is similar to that of a trochanter. Examples include the tibial tuberosity, deltoid tuberosity, and ischial tuberosity. Tubercle – A small, rounded prominence where connective tissues attach.
What does tuberosity mean in Latin?
1570s, from Latin tuberculum “a small swelling,” diminutive of tuber “lump” (from PIE root *teue- “to swell”).
What is the meaning of deltoid tuberosity?
Definitions of deltoid tuberosity. a bump on the outside of the humerus where the deltoid muscle attaches. synonyms: deltoid eminence. type of: eminence, tubercle, tuberosity. a protuberance on a bone especially for attachment of a muscle or ligament.
What is the function of the greater tuberosity?
The greater tuberosity is the prominent area of bone at the top of the humerus and is the attachment for the two large, powerful rotator cuff muscles – supraspinatus and infraspinatus. It is injured/fractured in a fall by either landing directly onto the side of your shoulder or landing with your arm outstretched.
Is tuberosity bigger than tubercle?
The muscles attach by tendons, where the enthesis is the connective tissue between the tendon and bone. A tuberosity is generally a larger tubercle.
Is tuberosity a bone projection?
In general, their size and shape is an indication of the forces exerted through the attachment to the bone….Learning Objectives.
| Bone Markings (Table 7.2) | ||
|---|---|---|
| Marking | Description | Example |
| Tuberosity | Rough surface | Deltoid tuberosity |
| Line | Slight, elongated ridge | Temporal lines of the parietal bones |
| Crest | Ridge | Iliac crest |
What does capitulum mean in anatomy?
Definition of capitulum 1 : a rounded protuberance of an anatomical part (such as a bone) 2 : a racemose inflorescence (as of the sunflower) with the axis shortened and dilated to form a rounded or flattened cluster of sessile flowers — see inflorescence illustration.
Which bone is associated with deltoid tuberosity?
humerus
Anatomical terms of bone In human anatomy, the deltoid tuberosity is a rough, triangular area on the anterolateral (front-side) surface of the middle of the humerus. It is a site of attachment of deltoid muscle.
What is the supraspinatus action?
Action. Contraction of the supraspinatus muscle leads to abduction of the arm at the shoulder joint. The supraspinatus also helps to stabilize the shoulder joint by keeping the head of the humerus firmly pressed medially against the glenoid fossa of the scapula.
Is greater tuberosity the same as greater tubercle?
Discussing them further, the greater tuberosity of the humerus is a prominent area of the humerus at the top of the bone. Perhaps, it is known as the greater tubercle along with the lesser tubercle.