Here's how the clavicle and the scapula look in the living body. At its medial end this large joint surface articulates with the sternum. It's the articular surface for the shoulder joint. At the lateral end this smaller surface articulates with the scapula. Round the edge of the shallow glenoid fossa, a rim of fibrocartiilage, the glenoid labrum, makes the socket of the shoulder joint both wider and deeper.

On the underside, massive ligaments are attached, here laterally, and here medially. It usually happens after a fall or a blow to the shoulder.

It's thus capable of a wide range of movement, upward and downward, and also forward and backward around the chest wall. 200, 201) forms the anterior portion of the shoulder girdle.It is a long bone, curved somewhat like the italic letter f, and placed nearly horizontally at the upper and anterior part of the thorax, immediately above the first rib. Become a subscriber to watch this video. We are unable to redeem your access code. The parts of them that we can feel beneath beneath the skin can be seen in this dissection: here's the spine of the scapula, here's the clavicle. These bones are part of the appendicular skeleton, and together they form the pectoral girdle (also called shoulder girdle), which attaches the upper limb to the axial skeleton. The lateral end of the clavicle articulates with this projection on the scapula, the acromion, forming the acromio-clavicular joint. The bones that connect the upper extremity to the trunk are the clavicle, or collar bone, and the scapula, or shoulder blade. Each digit is supported by three short long bones—the phalanges except thumb, which is supported by only two phalanges.

Therefore, loss of thumb alone is as disabling as the loss of all four fingers. This part of the clavicle is going to articulate with the manubrium of the sternum. By accessing any content on this site or its related media channels, you agree never to hold us liable for damages, harm, loss, or misinformation. Not valuable; 5 = Not easy to use; 5 = While this bone does articulate with the humerus and clavicle, it does not articulate with the ribs.

The scapula is a much more complicated bone.

The digits are five and numbered 1 to 5 from lateral to medial side. Not relevant; 5 = The first digit is called thumb and remaining four digits are fingers. Wolters Kluwer Health, Inc. and/or its affiliates. When we think of circles, the very first thing that comes to our mind is its round … Apart from this one very movable bony linkage, the scapula is held onto the body entirely by muscles. It will be easy to locate these three borders if you remember your directional terms: Ready to test your knowledge? Clavicle, curved anterior bone of the shoulder (pectoral) girdle in vertebrates; it functions as a strut to support the shoulder. You can feel it at the top of your chest, just below your neck.

The carpal bones articulate (a) with each other at intercarpal joints, (b) proximally with radius forming radio-carpal wrist joint, and (c) distally with metacarpal bones at carpometacarpal joints. It articulates medially with the manubrium sterni, and laterally with the acromion of the scapula. The clavicle bone serves as an important landmark when performing healthcare assessments. For example, the “midclavicular line” is an imaginary line that runs down the body from the middle of the clavicle, and it’s used to determine the location of the apical pulse, as well as the two vertical lines that make up the nine abdominal regions. clavicular fracture: the weakest part of clavicle is the junction of lateral one third and medial two third and this is the most common site of fracture; acromioclavicular joint injury; sternoclavicular joint dislocation; clavicle tumors; sclerotic clavicle; pediatric clavicle abnormalities; osteolysis ; distal clavicular erosions; Quiz questions. Three is the magic number for the scapula: It has three depressions (called fossae), three borders, and three angles. The phalanges form metacarpophalangeal joints with metacarpals and interphalangeal joints with one another.

The forearm is the part of the upper limb between the elbow and the wrist. This other projection, looking like a bent finger, is the coracoid process. Your feedback has been successfully submitted. The proximal long bone of the upper extremity, the humerus, articulates with the scapula at the shoulder joint.
The wishbone, or furcula, of Please try again another time. A broken collarbone, or fractured clavicle, is a common injury. The parts of them that we can feel beneath beneath the skin can be seen in this dissection: here's the spine of the scapula, here's the clavicle. The bones of the forearm are radius and ulna. The bones that connect the upper extremity to the trunk are the clavicle, or collar bone, and the scapula, or shoulder blade. Very easy to navigate, 1 = In the dry skeleton, here's the clavicle, here's the scapula. The shoulder girdle and the remaining parts of the body skeleton articulates with each other at the small sternoclavicular joint only. This site uses cookies.

The joint is stabilized by three ligaments: . All rights reserved. We are unable to receive your feedback at this time. Take our free (and quick!) At the acromioclavicular joint they articulate with each other forming the shoulder girdle. At its lateral end the spine gives rise to this flat, angulated projection, the acromion, which stands completely clear of the bone.

They articulate (a) proximally with distal row of carpal bones forming carpometacarpal joints, (b) with each other forming intermetacarpal joints, and (c) distally with proximal phalanges forming metacarpophalangeal joints. The clavicle (collar bone) and the scapula (shoulder blade) are the bones of the shoulder region.
Very relevant, 1 = Anatomists classify the clavicle as a long bone, and it gets its name from a Latin word that means “small key.”. It takes about 6 to 8 weeks to heal in adults, and 3 to 6 weeks in children.

Two strong ligaments, the trapezoid in front and the conoid behind, fix the underside of the clavicle to the coracoid process. A prominent bony ridge, the spine of the scapula, arises from the dorsal surface, and divides it into the supraspinous fossa, and the infraspinous fossa. As we've seen, the medial end of the clavicle articulates with the sternum at the sterno-clavicular joint. Strong ligaments between the clavicle and the sternum, and between the clavicle and the underlying first rib, keep the two bones together but permit an impresssive range of motion: up and down, and backward and forward. The arm is the part of the upper limb between the shoulder and elbow (or cubitus).

The scapula, also called shoulder blade, is a triangle-shaped bone on the posterior side of the body that forms the posterior part of the pectoral girdle.

The clavicle articulates with the scapula here, at the tip of the acromion. This flat ligament, the coraco-acromial ligament, joins the coracoid process to the acromion. The collarbone is a long, slender bone that runs from the breastbone to each shoulder.


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