Distal humerus 3. Ulna 4. Radius Scapula Scapula has three boney features that are important to the muscles of the elbow 1. Coracoid process-serves as the proximal attachment for the short head of the biceps 2. Supraglenoid tubercle- serves as the proximal attachment for the long head of the biceps 3.
Samantha Pothier Lateral Ankle Sprains An inversion ankle sprain is when the ankle is turned inwards and there is an injury to a ligament either tearing or stretching. Inversion Ankle sprains are the most common and usually happen when the ankle is forced into plantar flexion and also forced inward. An ankle sprain can be just a stretch of the muscle or tendon, and it also can partially or completely tear. (2. Ferrel) There are different degrees of ankle sprains.
In vivo, tendons support large mechanical loads and because of this, they are frequently injured. Examples of commonly injured tendons are: the rotator cuff, finger flexor tendons, patellar tendons and Achilles tendons. Tendon ruptures are injuries that occur due to accidental laceration or under extreme instantaneous loads. For example, the Achilles tendon can be ruptured in sport under actions requiring explosive acceleration, such as pushing off or jumping. Slow spontaneous healing does occur in the body however this often causes scar tissue formation or disorganised matrix made largely of dense collagen fibres, resulting in the repaired area having poorer mechanical properties than healthy and intact tendons.
A sprain is an injury that involves the tearing or stretching of a ligament or a joint capsule. Sprains happen when a joint is forced past its regular range of motion. I believe Jill sprained her ankle because there was severe ankle pain, swelling, bruising and Jill could not walk after the second incident. A strain is an injury that involves the tearing or stretching of a muscle and or tendon structure. An acute strain of the muscle or tendon structure happens at the connection where the muscle is becoming a tendon.
The ball and socket joints are the most mobile type of joint in your body. Other joints such as those between the vertebrae in your spine, which are connected to each other by pads of cartilage, can only move a small amount. Most of your joints are ‘synovial joints’; they are moveable joints containing a lubricating liquid called synovial fluid. Synovial joints are predominant in your limbs where mobility is important. Ligaments help provide their stability and muscles contract to produce movement.
The lateral and medial collateral ligaments The collateral ligaments, found in the ankle, consist of three main bands on the lateral and nedial aspect. There are a number of bands that accompany the collateral ligaments. The lateral collateral ligaments are comprised of the anterior talofibular ligament (ATL), the calcaneofibular ligament (CFL) and the posterior talofibular ligament. The supplementary bands that are related with the lateral compound are the lateral talocalcaneal ligament (LTCL), and the posterior intermalleolar ligament. The medial collateral ligament, also referred to as the deltoid ligament, is divided into a superficial, and deep compartment.
Virtually all synchondroses are synarthrotic. In symphyses the articular surface surface of the bone are covered with articular hyaline cartilage , which in turn is fused to an intervening pad, or plate of fibrocartilage, which is the main connecting material. Fibrocartilage acts as a shock absorber and permits a limited amount of movement at the joint. 3a Articulating bone: Articulating" means that the bones are moving relative to each other at a joint. The actual surfaces of the bones that might touch the other are the articulating surfaces, and the cartilage covering those surfaces is called articular cartilage.
D. Why would Stefan think that an enlarged right deltoid tuberosity might indicate right-handedness? A: Because the deltoid tuberosity is the site of attachment for the deltoid muscle. The deltoid muscle is a large and powerful muscle of the shoulder joint. E. What is the location of the pubic symphysis Stefan refers to in the story? A: The pubic symphysis is the joint between the two hipbones.
He can also look at the deep olecranon fossa on the posterior side (where the olecranon process of the ulna fits in when the elbow is straightened). D. The reason Stefan thinks that an enlarged right deltoid tuberosity might indicate right-handedness is because the deltoid tuberosity is the sight of attachment of the tendons of the deltoid muscle (a large and powerful muscle of the shoulder joint). When this hand is used more often it tends to distinctively shape the surface anatomy of the shoulder and humerus. E. The location of the pubic symphysis that Stefan refers to in the story is a joint where the hip bones unite anteriorly. They
They are s-shaped, long, slender bones that lie horizontally across the anterior part of the thorax superior to the first rib. C. Which surface markings could Stefan use to distinguish the right humerus from the left? Stefan could find the coronoid fossa which would indicate that if it is the right or left due to it only being on the anterior side of the bone. Also by recognizing their landmarks such as the head, deltoid tuberosity, and the olecranon fossa D. Why would Stefan think that an enlarged right deltoid tuberosity might indicate right-handedness? The deltoid tuberosity serves as an attachment for the tendons of the deltoid muscle, when you use one arm and hand much more than the other the bone will make that attachment site stronger to ensure adequate use and reduce the risk of harming that tendon, bone, or muscle E. What is the location of the pubic symphysis Stefan refers to in the story?