Humerus

had to occur. Firstly the forensic team had to analyze features of bone to determine as much as possible, that includes; the person’s gender, ethnic origin, age, and height. To find out the sex of the victim the pelvis, skull, femur, tibia, and humerus measurements were needed, in conclusion the overall gender was a male. For the race determination the skull was needed, the nasal width was 20mm and the nasal height was 38mm. Some other things that were measured was the nasal index, nasal spine,

experienced in the anterior compartment of the arm by Bruce? (3 marks) The structure passing through the yellow arrow is the humerus. It contributes to the pain at the anterior compartment of the arm by the long head tendon of the biceps muscle grinding against the scapular muscle. This leads to the ongoing instability of the humerus giving Bruce a large chance of a subluxated humerus. The superior labrum will also grind up against his inflamed bursa which is why Bruce has decreased range of motion and

The fracture seen in the images is called a comminuted fracture and is seen on the proximal end of the humerus. A comminuted fracture Is identified by the bone being spit into multiple fragments. As seen in the images provided the humeral head is seen with 2 fragments coming off of the medial and lateral aspects. Due to the multiple fragments as well as the patients MOI I deemed this fracture comminuted. The etiology for a comminuted fracture is described as an extreme pressure being exerted on a

of the shallow, oval socket of the scapula that Stefan placed next to the humerus? Glenoid cavity B. Which bone is Stefan referring to as the “collarbone”? The

The height of the individual was determined to be between 4’8” and 5’3” based on the measurements taken of the humerus bone. The humerus bone had the most important information to investigate the approximate height of the individual based on the bone’s maximum length. It was found that the maximum length of the humerus was 270 mm, or 27.0 cm. After finding the maximum length of the humerus, the number was plugged into the regression formula for the correct sex and ethnicity (in this case it was female

bones is decreased such as the angle betweem the humerus and the radius/ulnar bones of the arm/forearm. When there is flexion at the elbow joint, the angle between the humerus and the radius/ulnar bones decreases and results in flexion Extension - This is the opposite of flexion where the angle of the articulating bones actually increases. For example, if the arm is straightened at the elbow joint, the angle between the articulating bones of the humerus and radius/ulnar is increased. Abduction - This

Marissa Hollabaugh Kinematic Constraints Kinematic Constraints Associated with the Acquisition of Overarm Throwing Part 1: Step and trunk Actions; Kinematic Constraints Associated with the acquisition of Overarm Throwing Part 2: Upper extremity actions David Stodden, Stephen Langendorfer, Glenn Fleisig, James Andrews The purpose of this study was to examine the differences within specific kinetic variables and ball velocities that are associated with the developmental component levels of step

Briefly identify, list, and describe the action of at least two of the following muscle types: Posterior muscles The anconeus muscle is a small muscle on the posterior aspect of the elbow joint. It facilitates in extension of the elbow. The triceps brachii is the main agonist supporting the elbow into a full extension. The supinator is a broad muscle in the posterior compartment of the forearm curved around the upper third portion of the radius. Its primary function is to supinate the forearm (MJC

The trapezius muscle: - Origin: it has an extensive origin from the base of the skull to the upper lumbar vertebrae. - Insertion: it inserts on the lateral aspect of the clavicle, acromion, and scapular spine. - Nerve supply: It is innervated by the spinal accessory nerve. - Action: It functions mainly as a scapular retractor and elevator of the lateral angle of the scapula[19]. The rhomboids muscles: The rhomboids, consisting of the major and minor muscles. - Origin: the major and minor muscles

cartilage of the first 6 ribs and adjacent portion of the sternum. The sternal insertion is the groove of the humerus. The intended action of the sternal pectoralis major is internal rotation, horizontal adduction, extension, and adduction of the glenohumeral joint. An example from the radioulnar joint is the brachialis. Its origin is the distal half of the anterior portion of the humerus, and the insertion point is the coronoid process of the ulna. The brachialis intended action is flexion of the