Se ha denunciado esta presentación.
Utilizamos tu perfil de LinkedIn y tus datos de actividad para personalizar los anuncios y mostrarte publicidad más relevante. Puedes cambiar tus preferencias de publicidad en cualquier momento.

Muscle review

2.962 visualizaciones

Publicado el

Review of key concepts about the muscles
For Preliminary PDHPE

Publicado en: Educación
  • Sé el primero en comentar

  • Sé el primero en recomendar esto

Muscle review

  1. 1. CONTRACT VS RELAX • Muscles work by contraction (or shortening). • When they do they pull on the bone, causing movement. The muscle that is responsible for the movement is called the agonist. • When a muscle contracts, it has an opposing muscle that relaxes (or lengthens) at the same time. This is called the antagonist. • Muscles can be agonists or antagonists, depending on the direction of the movement. • Muscles can also be stabilisers. This means the muscles act at a joint to hold it still or stable. This provides a fixed strong base for muscle movement.
  2. 2. The main muscles involved in movement • Upper body deltoid, pectorals, biceps, triceps, latissimus dorsi, trapezius, rectus abdominis, external obliques, erector spinae • Lower body quadriceps, hamstrings, gluteus maximus, gastrocnemius, soleus, tibialis anterior
  3. 3. WHERE YOU AT? • Skeletal muscles attach to bones. They span across a joint (ie are attached to at least 2 different bones) • They can attach directly to a bone or attach by a tendon. • The point of attachment that to the more stationary bone is the origin of the muscle. It is usually closer to the trunk. • The point of attachment to the movable end is the insertion. It is usually further from the centre of the body.