Muscular System

• Neck Muscles

  Sternocleidomastoid

  Scalene

  Spinous Capitis / Cervics
• Sternocledimastoid

  Made up of:

  Sternum

  Clavicle

  Mastoid Process
• Respiratory Muscles

  
  

  Intercostal

  Diagrapgm
• Diaphragm

  Separates thoracic and abdominal cavity. three holes for Aorta, inferior vena cava & esophagus
• Intercostal

  elevate & lower ribs for breathing

  external - exhaling

  Internal - inhaling
• Abdominal Wall Muscles

  External Obliques

  Internal Obliques

  Rectus Abdominis

  Transverse Abdominis
• Posterior Shoulder Muscles

  Trapezius

  Rhomboids underneath traps

  Levator scapulae - extension
• Back Muscles

  Trapezius

  Deltoids

  Levator Scapulae

  Infraspinatus Fascia

  Teres Major - Minor

  Latissimus Dorsi

  Rhomboids Major
• Flexion

  A muscle crossing the anterior side of a joint
• Extension

  A muscle crossing the posterior side of a joint
• Abduction

  A muscle crossing the lateral side
• Adduction

  A muscle crossing the medial side
• Levator

  A muscle that elevates a body part
• Depressor

  A muscle that depresses a body part
• Supinator

  A muscle that turns the palm or sole upward
• Pronator

  A muscle that turns the palm or sole downward
• Sphincter

  A muscle that decreases the size of an opening
• Tensor

  A muscle that makes a body part rigid or tense
• Rotator

  A muscle that causes rotation around an axis
• Antagonist

  Creates resistance, prevents overshoots
• Synergist

  Helps prime mover
• Fixators

  Stabilize and immobilize bone