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Lower arm
Upper leg
Lower leg
Upper arm
Lumbar multifidus
Transverse abdominis
Pelvic floor
Erector spinae
Levator scapula
Teres major
Biceps femoris
Triceps brachii
Trapezius
Lattisimus Dorsi
Deltoid
Infrasprinatus
Sartorius
Soleus
Subscapularis
Serratus anterior
Levator scapula
Piriformis
Coccygeus
Erector spinae
Piriformis
Tibialis anterior
Soleus
Rectus femoris
Trapezius
Tensor fascia lata
Transverse abdominis
Tibialis anterior
Elbow
Hip
Knee
Shoulder
Sartorius
Supraspinalis
Splenius capitis
Serratus anterior
External obliques
Transverse abdominis
Erector spinae
Rectus abdominis
Erector spinae
Teres minor
Infraspinatus
Deltoid
Stimulation of the muscle by a motor neuron impulse
Stimulation of the muscle by an actin filament
Stimulation of the muscle by a myosin filament
Stimulation of the muscle by adenosine triphosphate
Piriformis
Levator scapula
Coccygeus
Erector spinae
Stability of the core
Support of the internal organs
Support of the trunk
Stability of the spine
Support the chest
Stabilise the spine
Support the upper back
Stabilise the hips
Sense the strength of a stretch
Sense the speed of a stretch
Sense changes in muscle tension
Sense changes in muscle size
Rectus abdominis
Vastus medialis
Gluteus maximus
Psoas major
Muscles that retract the scapula
Muscles that tilt the pelvic backwards
Muscles that protract the scapula
Muscles that tilt the pelvis forwards
Periosteum
Perimysium
Epimysium
Endomysium
Atrophy
Hypertrophy
Hyperplasia
Articulation
Rectus femoris
Tibialis anterior
Gastrocnemius
Soleus
Torso rotation
Knee extension
Side leg raise
Bicep curl
An efferent nerve impulse triggers some of the fibres in the motor unit to contract
An afferent nerve impulse triggers all of the fibres in the motor unit to contract
An afferent nerve impulse triggers some of the fibres in the motor unit to contract
An efferent nerve impulse triggers all of the fibres in the motor unit to contract
Transverse abdominis
External oblique
Multifidus
Pelvic floor