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Rotator Cuff: The musculotendinous sheath formed by the supraspinatus, infraspinatus, subscapularis, and teres minor muscles. These help stabilize the head of the Humerus in the glenoid fossa and allow for rotation of the Shoulder joint about its longitudinal axis.

Shoulder Exam II

JoVE 10185

Source: Robert E. Sallis, MD. Kaiser Permanente, Fontana, California, USA


The shoulder exam continues by checking the strength of the rotator cuff muscles and biceps tendons. The rotator cuff muscles (supraspinatus, infraspinatus, teres minor, and subscapularis) act as compressors, holding the humeral head in place against the glenoid.…

 Physical Examinations III

Shoulder Exam I

JoVE 10173

Source: Robert E. Sallis, MD. Kaiser Permanente, Fontana, California, USA


Examination of the shoulder can be complex, because it actually consists of four separate joints: are the glenohumeral (GH) joint, the acromioclavicular (AC) joint, the sternoclavicular joint, and the scapulothoracic joint. The GH joint is primarily responsible for…

 Physical Examinations III

Joints

JoVE 10865

Joints, also called articulations or articular surfaces, are points at which ligaments or other tissues connect adjacent bones. Joints permit movement and stability, and can be classified based on their structure or function.

Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial. The bones of a fibrous joint are connected by fibrous tissue and have no space, or cavity, between them. Thus, fibrous joints cannot move. Although the skull appears to be a single large bone, it includes several bones that are connected by fibrous joints called sutures. Syndesmoses, the second type of fibrous joint found in the fibula (calf bone), allow more movement than sutures. The third type of fibrous joint, gomphoses, connect teeth to their sockets. The bones of cartilaginous joints are connected by cartilage and permit minimal movement. The two types of cartilaginous joints, synchondroses and symphyses, differ in the kind of cartilage that connects the bones (hyaline cartilage and fibrocartilage, respectively). The epiphyseal plates in the bones of growing children contain synchondroses. Symphyses connect vertebrae as well as the pubic bones. Synovial joints, found in the elbows

 Core: Musculoskeletal System

Measurement of Maximum Isometric Force Generated by Permeabilized Skeletal Muscle Fibers

1Department of Orthopaedic Surgery, University of Michigan Medical School, 2Department of Molecular & Integrative Physiology, University of Michigan Medical School, 3Department of Biomedical Engineering, University of Michigan Medical School, 4Department of Surgery, Section of Plastic Surgery, University of Michigan Medical School

JoVE 52695

 Bioengineering

Kinematics and Ground Reaction Force Determination: A Demonstration Quantifying Locomotor Abilities of Young Adult, Middle-aged, and Geriatric Rats

1CullenWebb Animal Neurology & Ophthalmology Center, Riverview, NB, 2Department of Clinical Neurosciences, Faculty of Medicine, University of Calgary, 3Department of Comparative Biology and Experimental Medicine, University of Calgary, 4Department of Neuroscience, University of Calgary

JoVE 2138

 Neuroscience

Rat Model of Adhesive Capsulitis of the Shoulder

1Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and Harvard Medical School, 2Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, 3Departments of Biomedical Engineering, Chemistry, and Medicine, Boston University, 4Department of Orthopaedic Surgery, Yerevan State Medical University

JoVE 58335

 Bioengineering

A Protocol to Acquire the Degenerative Tenocyte from Humans

1Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 2Department of Pathology, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, 3Department of Physiology, CHA University School of Medicine, 4Department of Rehabilitation, CHA Bundang Medical Center, CHA University School of Medicine

JoVE 57634

 Medicine
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