Humerus

Time Span Video Content Audio Content 0:00-0:30 Full screen shot of the humerus during the introduction The Humerus is both the largest bone in the arm and the only one located in the upper arm. Many of the powerful muscles that help move the shoulder and forearm, the elbow, are attached to the Humerus. The Humerus is very essential to a variety of movements of the arm, including throwing, lifting, and even writing. 0:30-1:00 Demonstrate all parts of the humerus bone. There are many parts of the Humerus including the head, greater and lesser tubercles, Anatomical and surgical necks, Intertubercular sulcus, Radial groove, Deltoid tuberosity, medial and lateral supracondylar ridge, Radial fossa, Coronoid Fossa, Olecranon fossa, medial and…

requirements when handling any patient with physical injuries. I have recently had the opportunity to work such a patient and have learned that these are skills are in part learned with experience, but also with careful guidance from senior technologists. On the morning of Tuesday October 18th, a forty-eight-year-old female patient was admitted into the Emergency department with severe pain in the left arm. According to the patient, she was preparing a meal in slow cooker but in an attempt to…

Consider the arm. The biceps and the triceps are on two sides of the upper arm bone (humerus) and attach to the fore arm bones (radius and ulna) from the inside and outside of the elbow joint. Contraction of the bicep causes your arm to fold. Contraction of the triceps causes your arm to extend , your biceps muscle is attached to your shoulder blade at one end and to your ulna in your forearm at the other end. When the biceps contracts, it shortens and pulls the ulna toward the shoulder blade…

The rotator cuff is a group of muscles and tendons that surrounds the shoulder joint, keeping the humerus bone within the ball and socket of the shoulder. A rotator cuff tear is an injury that can cause a dull ache in the shoulder, which often worsens when trying to overuse the muscles. Rotator cuff injuries often occurs in people who repeatedly perform motions that included using the arm above their heads. They can get these injuries in their jobs, or sports, also the rotator cuff injury also…

B978-0-7020-4307-9.00036-0, 00036 compression (Matsen, 1994). Poor alignment can change the kinetic motion of the humerus against the glenoid cavity and affect shoulder function (Goldstein, 2004). In addition, the rotator muscles are playing an important role in applying compression force to humerus against the glenoid cavity and allowing concentric muscle work of the prime movers like pectoralis, biceps and deltoid to pull the arm (Howell and Galinati, 1988). Any changes in the rotator cuff…

Wind Up The wind up is the first key phase of the throw. It occurs when the athlete positions themselves side on to the target. The main purpose of this phase is so the body can get into a rhythm which will make it easier for the throwing action to be more efficient. At the start of the wind up the athletes feet should be shoulder width apart and should be side on to the target. The athlete then extends their knee and strides outwards. This helps to develop momentum which is used in later stages…

on a pillow so it is above heart level. Immobilization with a brace to restrict any movement of the elbow till the joint can heal on it’s own. Or in severe cases surgery maybe needed if the ligaments are completely torn, and requires surgery to be treated. -The structure of the elbow is constructed in a way that aids to not allow dislocations and fractures to the elbow easily, but of course a great deal of pressure and overuse of a joint can cause injuries. A large network of ligaments…

The next movement is extending at the knee joints. When I extend the knee joints my quadriceps and gastrocnemii allow me to jump high off the ground. As my feet are leaving the ground I start to make my next movement with my shoulders and wrists. I start to swing the rope to the other side of my body so I can make my next movement. My shoulder joint uses circumduction to perform this part of the skill. While moving the rope to the other side of my body using my shoulders I am also rotating my…

Rotator cuff tears are debilitating injuries that can take months from which to fully heal and recover. Thus, medical professionals want to use the most effective treatments to help patients return to normal life as fast as possible. One main treatment for rotator cuff tears is physical therapy designed to increase range of motion and then strengthen surrounding muscles to maintain that recovered range of motion. To measure growth and recovery in a objective fashion, tests over range of…

radius and the ulna, which run parallel to each other. These two bones structurally support each other making them stronger together than one bone alone, however they are the most common broken bones in the limbs of the body. Studies show that the natural instinct to brace oneself actually curtails the doubled support with this limb. The radial and ulnar arteries and nerves run through the forearm following the bones of similar name. When in anatomical position, the ulna lies medially to the…