Muscles of the upper limb

the four muscles that make up the rotator cuff in the shoulder. The body of the tendon lies along the supraspinous fossa of the scapula and attaches laterally to the humeral head. Its purpose is to withstand the inferior gravitational exertions set over the shoulder joint due to the downward pull of the weight of the upper limb. Not only that, but the supraspinatus also helps the shoulder joint stay in place. The supraspinatus muscle is primarily used for abduction. It is a weak muscle in most…

topic arose in the scientific community quite some time ago. Popular area focused on this topic was the effect of Spear use by Eurasian Neanderthals and early modern humans. Neanderthals are commonly known for roaming the earth during the same time as Upper Paleolithic modern humans. Due to the extinction of Neanderthals and our continued progression an important argument is the difference in predatory capabilities between the two hominids. Both actively used spears during their hunting…

Being that this duration is 15 seconds, the body will need energy at a faster rate to produce ATP. Glycolysis will not be included in this particular test, due to rapid amount of energy is needed. The ATP-PCr will be an essential pathway to assist the muscle actions of the legs, to increase and generate more force in the performance to produce higher values in mean values in capacity and relatively. 4. Was there a drop-off in anaerobic power during the Wingate Test? Why? There was a 10- second…

could potentially cause several maladaptations, including chronic weakness and imbalance of lower limb muscle. Therefore, it is suggested the non-modifiable…

central nervous system (CNS), the spinal cord help assist the brain to carry out every day routines. The spinal cord is significant structure in the body that is 45 centimeters in length. The spinal cord is part of a pathway from the brain to the muscles. The spinal cord is inserted into the base of the brain stem. There are many parts that deals with the spinal to help the body and the brain to send out or to do functions. Structures such as the vertebras to meninges,…

ability to walk, to improve limb function and strengthen the muscles of the trunk. Analgesics and nonsteroidal anti-inflammatory drugs help relieve the pain. Patients should be encouraged to sit and walk for short distances as soon as possible, to avoid deconditioning and acceleration of bone loss. They may be unable to walk independently for 1 wk. and have significant spinal pain for 6-12 weeks. Sometimes, after one month, the pain shifts from the fracture to an upper or lower level, since the…

consists of eighty bones, which are part of the skull, hyoid bone, vertebral column and thoracic cage. Additionally, the appendicular skeleton consists of one hundred and twenty six bones that are part of the pectoral girdle, pelvic girdle, upper and lower limbs. Bones are connected to joints, ligaments, tendons and cartilage, which makes up the human skeletal system. The skeletal system has three major functions, which include, support, protection, and movement. Although all adults contain the…

head shaking caused by essential tremor and that caused by dystonia. In this article Prof Karim explains what the differences are and how to tell if it is dystonia or not. A majority of the world’s population at some point use their head and neck muscles in order to carry or transport heavy goods. To do this, the control of the head posture needs to be phenomenal and must not allow any slight involuntary movement of the head. Unfortunately, for some people the head starts shaking even when they…

stages of childhood. The process usually starts with the upper neck and works its way down the body, and into the limbs. Fibrodysplasia Ossificans Progressiva is caused by a mutation in the ACVR1 gene. This gene provides directions for constructing a part of a protein group called bone morphogenetic protein. This protein is found in many tissues, as well as muscles and cartilage. ACVR1 helps control the development and growth of the bones and muscles. Researchers believe that a mutation may…

Introduction Glenouhumeral Joint The glenohumeral (GH) joint, which is also known as shoulder joint, is a multiaxial ball-and-socket synovial joint. This joint is responsible for connecting the upper extremity of the trunk. The glenohumeral joint is one of the four joints that comprise the shoulder complex. The joint is considered to be the most mobile and least stable joint. The articular surfaces of the glenohumeral joint are the head of humerus and glenoid fossa of scapula. The humeral…