Ch.10- Muscular System

• Fasicle


  bundle of muscle fibers

  
• Epimysium


  covers the entire skeletal muscle

  
• Perimysium


  Connective tissue surrounding a fascicle

  
• Sacromere


  Basic contracting unit of muscle cell consists of actin and myosin filaments between z-lines in a muscle cell

  
• Sarcoplasmic reticulum


  Organelle of the muscle fiber that stores calcium

  
• Actin


  thin filaments

  
• Myosin


  thick filament

  
• Aponeurosis


  strong sheet of tissue that acts as a tendon to attach muscles to bone

  
• Masseter


  closes mouth

  
• Biceps Brachii


  Muscle of the upper arm; forearm flexion.

  
• Biceps Femoris


  Muscle of the upper leg that bends the knee.

  
• Orbicularis Oculi


  closes eyelids

  
• Brachioradialis


  flexion of elbow

  
• Deltoid


  Muscle of the shoulder that raises the arms to the side. Abduction, flexion, and extension

  
• External Oblique


  Pulls the chest down and compresses the abdominal cavity

  
• Flexor Carpi Radialis


  flexes wrist and abducts hand

  
• Frontalis


  raises eyebrows

  
• Gastrocnemius


  Muscle located posterior to the fibia and assists the knee with flexion and plantar flexion of the foot

  
• Orbicularis Oris


  Central Movement of the mouth and lips.

  
• Pectoralis Major


  Flexion and abduction of the humerus.

  
• Peroneus Longus


  Muscle on the lateral side of the foot and ankle. It helps with eversion.

  
• Rectus Abdominus


  Flexes and rotates vertebral column.

  
• Rectus Femoris


  Flexion of the hip, knee extension.

  
• Sartorius


  Flexes, abducts, and laterally rotates thigh at the hip; flexes knee

  
• Soleus


  plantar flexion of foot

  
• Sternocleidomastoid


  Rotates the head to the opposite side or obliquely rotates the head.

  
• Temporalis


  muscle of mastication(chewing)

  
• Tibalis Anterior


  dorsiflexion and inversion of foot (shin)

  
• Trapezius


  Movement of the scapula and extends the neck.

  
• Triceps Brachii


  extends forearm at elbow joint and extends arm at shoulder joint

  
• Vastus Lateralis


  extends lower leg

  
• Zygomaticus Major


  Draws mouth upward/outward

  
• Gracilis


  adducts thigh

  
• Vastus medialis


  extends knee

  
• Extensor Digitorum Longus


  extends toes

  
• Adductor Longus


  adducts, flexes, and medially rotates thigh

  
• Tensor Fasciae Latae


  Abducts, flexes, and rotates the thigh medially

  
• Serratus anterior


  pulls scapula anteriorly and downward

  
• Latissimus dorsi


  Extends, adducts, and medially rotates the arm; draws the shoulder downward and backward

  
• Teres minor


  rotates arm laterally