The olecranon fossa is a deep depression on the medial side of the humerus above the humeral head.. It has been called the “oocradon” fossa by anatomists since Pliny the Elder, and was originally named “the olecranon” by the French anatomist Desormeaux.
What type of joint is the elbow?
In a healthy elbow the joint surfaces are smooth and clean. Like the joint at the front of your hand (carpal) on the top of your wrist, it has a smooth surface with the bones fitting tightly together. At each end of the elbow is a ball that fits into a socket like a bearing.
Where is the head of the humerus?
Located on the front of the upper arm bone, the humerus also forms an extension at the upper part of the forearm. To the human upper arm, the humeral head forms an elongated projection which articulates with the scapula and protrudes at the shoulder’s dorsal side.
What is olecranon process?
Olecranon, Latin for “little elbow”, is the most commonly fractured site in football. It occurs at the end of the humerus, part of the large shoulder bone. The most common injury from this injury is dislocation of the olecranon, but also occur subdislocations of the elbow.
What is the Coronoid fossa?
Coronoid fossa is in the fossa and consists of the coronoid process. The coronoid fossa is located in the medial surface of the mandible, immediately posterior to the incisor root. The coronoid process projects posteriorly toward the inferior alveolar canal, through which bone marrow is infused.
Where can you palpate the olecranon process?
The olecranon is located at the end of the ulna. This means you should be able to touch it if your hand is straight out in front of you. Your thumb should be on top and your fingertips below.
What is olecranon bursitis?
Olecranon Bursitis is inflammation of pain on the bone of the elbow (olecranon), where the big biceps tendon inserts. Your big biceps tendon, or biceps brachii tendon, runs from the inside of the biceps muscle on the inside of your arm to your forearm.
What is the function of a fossa?
The fossa in the human temporal bone is divided into inner and outer fissures. The fossa is a cavity on the external surface of the temporal bone that contains the internal carotid artery. It is bounded by the parietal bone posteriorly, the sphenoid bone laterally, and the temporal bone anteriorly.
Is the olecranon the elbow?
The olecranon is a bony protrusion on the outside of the elbow joint. It connects with the humerus to form a hinge point that allows movement. The biceps brachii muscle is the largest in the upper arm.
What does the Coronoid fossa articulate with?
The glenoid fossa (or socket) is formed by a process running from the front of the glenoid. The glenoid fossa itself articulates with this process and the scapula in the scapulohumeral joint.
Where is the radial fossa?
The radial fossa is a deep but shallow elliptical fossa extending from the lateral wall of the radial canal to the posterior border of the distal radius.
How many different muscles attach to the humerus?
Muscles insert on the humerus: the deltoid, pectoralis major, pectoralis minor, supracondinl, infraspinatus, teres minor, triceps, forearm extensors, forearm flexor.
What muscles attach to the lateral epicondyle of the humerus?
The rotator cuff muscles are the supraspinatus (upper layer), the infraspinatus (middle layer) and the teres minor (lower layer) and provide traction for the humerus as it rotates.
Subsequently, question is, what is the purpose of the olecranon process?
The bony part of the elbow that sticks out is the olecranon. The joint between the olecranon and humeral (upper) bones.
What is the humeral head?
Humeral head. The humerus has two large portions that can slip. The proximal humerus and greater tuberosity make up the capitular head, and the head of the humerus. The head of the humerus has no capsule and is surrounded by the periosteum.
What is another name for the olecranon process?
The olecranon process, a small triangular bone in the forearm. The olecranon process, which is also called the coronoid process or patella, originates from the patella of the knee and ends in a flat top just behind the elbow.
Is the olecranon process the funny bone?
The olecranon process. On the right side of the elbow, the ulna attaches firmly to the medial half of the humerus. This is the ulnar side of the elbow. At the same time, the radioulnar joint attaches to the ulnar half of the humerus in the forearm.
Where is the Coronoid process located?
The coronoid process occupies a relatively small portion of the upper arm bone. Most of the coronoid process is made up of the coronoid bone, the lateral coronoid and the medial coronoid bone. On the back of the upper arm, the coronoid process begins. After traveling about half of the distance from the humerus to the elbow, it makes a 90 degree bend down onto the forearm (sartorius insertion).
What muscles attach to the Coronoid process?
The coronoid process is a prominent projection on the lateral surface of the mandible at the base of the processus coronoideus. It forms a bone attachment point for the muscles that act to close the jaw. The zygomaticohumeral and temporalis muscles each attach to a point in the coronoid process.
What does the Trochlear notch do?
The notch divides the base of the capitulum and tubercle above. On the underside, the trochlea articulates with bones of the shoulder girdle.
In this regard, what is olecranon fossa of humerus?
The lateral epicondyle of the humerus is made up of two protuberances, one on top and the other on the side. The protrusion on top is known as the greater tuberosity of the humerus (or greater tuberosity). The protrusion on the side is the olecranon fossa (or olecranon process).
Similarly, you may ask, what does the olecranon fossa of the humerus articulate with?
the olecranon fossa) of the ulna.