What ligament makes up the elbow joint

The two main ligaments connecting the humerus and ulna are: ulnar-collateral ligament, also called the medial collateral ligament, which runs along the inside of the elbow. lateral collateral ligament, also called the radial collateral ligament, which runs along the outside of the elbow.

What three ligaments make up the elbow joint?

The important ligaments of the elbow are the medial collateral ligament (on the inside of the elbow) and the lateral collateral ligament (on the outside of the elbow.) Together these ligaments provide the main source of stability for the elbow, holding the humerus and the ulna tightly together.

What makes up the elbow joint?

The elbow joint is composed of the distal end of the humerus and the proximal ends of the radius and the ulna (see the images below).

What ligament makes up the elbow joint quizlet?

triangular ligament located on the medial side of the elbow. It extends from the medial epicondyle of the humerus to ulnar tuberosity on the medial aspect of the coronoid process and the medial aspect of the trochlear notch/olecranon of the ulna. It consists of three bands.

What are the main supporting ligaments of the elbow joint quizlet?

Also the two main supporting ligaments are the radial collateral ligament (stabilizes joint @lateral surface) & the ulnar collateral ligament (stabilizes joint @medial surface). Explain why the elbow joint is relatively stable.

What is the ulnar collateral ligament?

The ulnar collateral ligament (UCL) is a ligament that runs on the inner side of the elbow to help support it when performing certain motions, such as throwing. When this ligament is torn or damaged, it can lead to pain, elbow instability and loss of function.

What is the annular ligament?

The annular ligament is a strong fibro-osseous circular structure that has attachments to the anterior and posterior margins of the radial notch (lesser sigmoid cavity) of the ulna. The annular ligament forms about four-fifths of a circle. The ligament subdivides into three layers:[2] Deep capsular structure.

Where does the ulnar collateral ligament attach?

The ulnar collateral ligament complex is located on the inside of the elbow (pinky or medial side). It is attached on one side to the humerus (the bone of the upper arm) and on the other side to the ulna (a bone in the forearm).

Where are the anterior and posterior cruciate ligaments found?

Two of the four ligaments that connect the thighbone (femur) to the shinbone (tibia) are the posterior cruciate ligament and the anterior cruciate ligament (ACL). The two cruciate ligaments cross one another in the middle of the knee as they join these leg bones together.

What is an olecranon fossa?

The olecranon fossa is located on the posterior surface of the distal humerus, where it receives the proximal ulna during full extension of the arm. … The intertubercular groove passes between two tubercles on the humerus.

Article first time published on

Where do you find ligaments?

Ligaments are bands of tough elastic tissue around your joints. They connect bone to bone, give your joints support, and limit their movement. You have ligaments around your knees, ankles, elbows, shoulders, and other joints.

What is a ligament?

A ligament is a fibrous connective tissue that attaches bone to bone, and usually serves to hold structures together and keep them stable.

What is flexion of the elbow?

When your forearm moves toward your body by bending at your elbow, it’s called elbow flexion. The opposite movement is called elbow extension. The three bones involved in elbow flexion are the: humerus, in your upper arm. ulna, on the little finger side of your forearm.

What ligaments reinforce the shoulder joint?

In the shoulder, the joint capsule is formed by a group of ligaments that connect the humerus to the glenoid. These ligaments are the main source of stability for the shoulder. They are the superior, middle and inferior glenohumeral ligaments. They help hold the shoulder in place and keep it from dislocating .

What is the most stabilizing bundle of the medial collateral ligament?

The anterior band of the medial collateral ligament of the elbow is the most important stabilizer of the elbow valgus instability, and its principal action occurs between 50° and 70° of elbow flexion.

What ligament binds the acromion to the clavicle?

The acromioclavicular ligament, which attaches the clavicle to the acromion of the scapula.

What is Interclavicular ligament?

Anatomical terminology. The interclavicular ligament is a flattened band, which varies considerably in form and size in different individuals, it passes in a curved direction from the upper part of the sternal end of one clavicle to that of the other, and is also attached to the upper margin of the sternum.

What ligament in the elbow attaches to the annular ligament?

It encircles 80% o the radial head and functions to maintain the relationship between the head o the radius and the humerus and ulna. The external surface of the ligament receives attachments from the elbow capsule, the radial collateral ligament, and the supinator muscle.

What is Pubofemoral ligament?

The pubofemoral ligament is anteroinferior to the hip joint. It is triangular, its base attaching to the iliopubic eminence, superior pubic ramus, obturator crest and obturator membrane. It blends distally with the capsule and deep surface of the medial iliofemoral ligament.

What is Tommy Johns syndrome?

A Tommy John injury is an injury to the ligament on the medial (inside) part of the elbow. It most commonly occurs in overhead throwing athletes such as baseball pitchers and quarterbacks but can also occur in other sports such as gymnastics, javelin throwing, tennis, volleyball, and softball.

What is the lateral collateral ligament?

The lateral collateral ligament is a thin band of tissue running along the outside of the knee. It connects the thighbone (femur) to the fibula, which is the small bone of the lower leg that runs down the side of the knee and connects to the ankle.

What is a radial collateral ligament?

The radial collateral ligament (RCL) is a strong, short, thin band of tissue that connects from the humerus (upper arm bone) to the radius (one of two forearm bones). The role of the RCL is to provide stability against inner to outer stress on the elbow. … This acute injury can also coincide with elbow joint dislocation.

What are the three types of ligaments?

Types of articulation ligaments There are three types of the articulation ligaments: capsular, extracapsular and intracapsular. They differ by their location within a joint.

Where is the posterior ligament?

The posterior cruciate ligament (PCL) is located inside the knee, just behind the anterior cruciate ligament (ACL). It is one of several ligaments that connect the femur (thighbone) to the tibia (shinbone). The posterior cruciate ligament keeps the tibia from moving backward with relation to the thigh bone.

What is the PCL ligament made of?

The PCL is comprised of two bundles: the larger anterolateral bundle (ALB) and smaller posteromedial bundle (PMB). According to Anderson et al., the distance between the center of the ALB and PMB femoral attachments is 12.1 mm, while the distance between their tibial attachments is 8.9 mm [4].

Where is the medial collateral ligament of the elbow?

The medial collateral ligament (MCL) of the elbow of is part of the complex of ligaments and tendons that attach and stabilize the bones of the lower and upper arm where they meet at the elbow joint. (It should not be confused with the MCL of the knee.)

Are there 2 ulnar collateral ligaments?

Structure. It consists of two portions, an anterior and posterior united by a thinner intermediate portion. Note that this ligament is also referred to as the medial collateral ligament and should not be confused with the lateral ulnar collateral ligament (LUCL).

Where does the ulnar collateral ligament originate?

The UCL originates at the posterior distal aspect of the medial epicondyle and inserts into the base of the coronoid process. At 90 º of flexion, it provides 55% of the resistance to valgus stress at the elbow.

What is the capitulum?

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.

What is the function of Fossae?

Function. The olecranon fossa provides space for the olecranon of the ulna during extension of the forearm, from which it gets its name.

Is olecranon fossa the elbow?

OlecranonFMA39795Anatomical terms of bone