• Tendon
  • The coracobrachial bursa is between the subscapularis muscle and the tendon of the coracobrachialis muscle. (wikipedia.org)
  • Between the capsule and the tendon of the subscapularis muscle is the subscapular bursa, this is also known as the subtendinous bursa of the scapularis. (wikipedia.org)
  • Two filmy sac-like structures called bursae permit smooth gliding between bone, muscle, and tendon. (wikipedia.org)
  • Insertion
  • Though traditionally described as a single insertion, the deltoid insertion is divided into two or three discernible areas corresponding to the muscle's three areas of origin. (wikipedia.org)
  • fibers
  • A skeletal muscle refers to multiple bundles of cells called muscle fibers (fascicles). (wikipedia.org)
  • Muscle fibers are in turn composed of myofibrils. (wikipedia.org)
  • Another group of cells, the myosatellite cells are found between the basement membrane and the sarcolemma of muscle fibers. (wikipedia.org)
  • Development Individual muscle fibers are formed during development from the fusion of several undifferentiated immature cells known as myoblasts into long, cylindrical, multi-nucleated cells. (wikipedia.org)
  • Microanatomy Skeletal muscle exhibits a distinctive banding pattern when viewed under the microscope due to the arrangement of cytoskeletal elements in the cytoplasm of the muscle fibers. (wikipedia.org)
  • Muscle architecture refers to the arrangement of muscle fibers relative to the axis of force generation of the muscle. (wikipedia.org)
  • The rest of the muscle arises by numerous short tendinous fibers. (wikipedia.org)
  • When activating together, the upper and lower fibers also assist the middle fibers (along with other muscles such as the rhomboids) with scapular retraction/adduction. (wikipedia.org)
  • rectus
  • The transversalis, rectus, and pyramidalis muscles. (usf.edu)
  • For others, such as the rectus femoris or deltoid muscle, it becomes more complicated. (wikipedia.org)
  • For instance, fusiform refers to a longitudinal architecture with a widened muscle belly (biceps), while parallel may refer to a more ribon-shaped longitudinal architecture (rectus abdominis). (wikipedia.org)
  • laterally
  • If laterally (externally) rotated, the contribution of the deltoid is lessened and the pec major is strongly emphasized as the transverse adductor. (wikipedia.org)
  • rear
  • The rear delt raise, also known as the rear deltoid raise, or rear shoulder raise is an exercise in weight training. (wikipedia.org)
  • To keep the focus on the rear deltoid when lifting, it is imperative to keep the elbows away from the body and avoid torso movement, This ensures ideal isolation. (wikipedia.org)
  • Nerves
  • View of the posterior abdominal wall to show the muscles and the nerves of the lumbo sacral plexus. (usf.edu)
  • Nerve regeneration after an episode is normal, and in less severe cases a full recovery of the nerves and muscles can be expected. (wikipedia.org)
  • torso
  • The deltoids help to transfer the energy from your torso to your arms and prepare it to enter the club, they help to stabilise your shoulder complex and work in concert with the muscles of your core . (golfloopy.com)
  • contraction
  • The sarcomere is responsible for the striated appearance of skeletal muscle, and forms the basic machinery necessary for muscle contraction. (wikipedia.org)
  • The interaction of myosin and actin is responsible for muscle contraction. (wikipedia.org)
  • The sarcoplasmic reticulum surrounds the myofibrils and holds a reserve of the calcium ions needed to cause a muscle contraction. (wikipedia.org)
  • T tubules are the pathways for action potentials to signal the sarcoplasmic reticulum to release calcium, causing a muscle contraction. (wikipedia.org)
  • Mobility
  • Mobility and strength in your deltoids helps to support this movement, enabling you to more efficiently achieve the appropriate angles within the swing, leading to better and more consistent ball striking and decreased risk of injury. (golfloopy.com)