Teres Minor Muscle Anatomy Teres minor is a narrow and elongated muscle (cord-like muscle) that is completely hidden by the deltoid muscle and difficult to clearly delineate it from the infraspinatus muscle because teres minor muscle fibers may be fused with fibers of the infraspinatus muscle. Teres minor is part of the rotator cuff muscles that …
Latissimus dorsi Anatomy The Latissimus dorsi muscle is a large and triangular/fan-shaped muscle of the back with a very wide origin and but very narrow insertion. The Latissimus dorsi has upper, middle and lower parts whose fibers run in different directions. The upper part of this flat sheet of muscle runs horizontally …
Rhomboid Major Anatomy The Rhomboid major or Rhomboideus major is also called (in latin) the musculus rhomboideus major and is one of the deep extrinsic shoulder muscles (the deep posterior thoracoappendicular muscles) the others being levator scapulae and rhomboid minor. The two rhomboids (major and minor) lie deep to the trapezius muscle and form parallel bands that pass inferior …
Levator Scapulae Anatomy Levator Scapulae muscle is a strap-like, slender muscle that is seen in the floor of the posterior triangle. This muscle originates from the transverse processes of the atlas and axis and also from the posterior tubercles of the third and fourth cervical vertebrae by slender slips of tendon. The …
The Rhomboid minor or Rhomboideus minor is also called the musculus rhomboideus minor and is one of the deep extrinsic shoulder muscles (the deep posterior thoracoappendicular muscles) the others being levator scapulae and rhomboid major. The Rhomboid minor is a narrow ribbon like muscle that lies parallel to the rhomboid major and arises from the C7 and …
Coracobrachialis is a muscle of the anterior compartment of the arm, found in the upper and medial part of the arm. It is also called Musculus Coracobrachialis; this muscle is a useful landmark in the arm for locating other structures in the arm such as identifying the musculocutaneous nerve which pierces this muscle …
Biceps brachii Anatomy Biceps brachii muscle is also called Musculus Biceps brachii which simply means the two-headed muscle of the arm. It is one of the flexor muscles of the forearm; in fact, it is the primary and most powerful flexor muscle of the forearm. These three (3) flexors are located in …
Vulcanicity Definition Vulcanicity refers to the rising of molten magma or other gaseous materials beneath the earth’s crust on the surface or within the earth’s crust. Molten magma naturally escapes through cracks and fissures, hence vulcanicity is associated with areas that have experienced mountain building processes of compression and tension. Types of …