What does acromion mean?
/ əˈkroʊ mi ə/. Anatomy. the outward end of the spine of the scapula or shoulder blade.
What is a palpable landmark?
The palpable landmarks include the sulcus between the scaphoid and trapezoid, the dorsal tubercle of the triquetrum, and the midpoint between Lister’s tubercle and the dorsal rim of the sigmoid notch. These points identify the bisection lines of the dorsal intercarpal and dorsal radiocarpal ligaments.
What does bony landmark mean?
Any place on the skin surface where the underlying bone is normally close to the surface and easily palpable.
What bony landmark is found above the spine of the scapula?
The acromion of the scapula is a large bony projection on the superior end of the scapula. It is an important landmark of the skeletal system and a muscle attachment point essential to the function of the shoulder joint.
What type of bone is acromion?
The scapula is a large, flat triangular bone with three processes called the acromion, spine and coracoid process . It forms the back portion of the shoulder girdle.
Is acromion a muscle?
The acromion process is the origin of the acromial head of the deltoid muscle, which courses distally and covers the scapular neck. Fractures of the acromion process or, more commonly, osteotomy of the acromion needed to expose the scapular neck and shoulder joint, require surgical repair.
Where is the iliac crest?
The iliac crest is the ilium’s top border, the largest of the three bones that make up the pelvis. The ilium bone has two parts: the body and the wing. To feel your ilium crest, put your hand on your waist and press firmly. You will feel a bony surface.
What is the manubrium of the sternum?
The manubrium (manubrium sterni) is quadrangular shaped with four borders. The clavicular notches of the sternum articulate with the medial end of each clavicle to form the sternoclavicular joints. The manubrium sterni also articulates with the costal cartilages of the 1st pair of ribs.
What is the difference between tubercle and tuberosity?
The main difference between tuberosity and tubercle is that tuberosity refers to a slightly larger lump on bones, but tubercle refers to the smaller lump. Some of the examples of tuberosity are the greater tuberosity of the humerus and the ischial tuberosity of the hip bone.
What are skull landmarks?
Skull landmarks of anatomic importance exist, located where there is a palpable bony protuberance or where sutures join: nasion. glabella. bregma. vertex.
What muscle keeps the scapula in place?
The serratus anterior is an important scapular stabilizing muscle. It originates from the first eight ribs and courses along the rib cage to insert along the anterior medial aspect of the scapula.
What muscles retract the scapula?
Retraction is accomplished by the actions of the trapezius, rhomboids, and latissimus dorsi muscles. The elevation is accomplished by the trapezius, levator scapulae, and rhomboid muscles.