Muscles & Movement Flashcards
Function of Biceps Brachii
Flex the elbow joint
Function of Triceps Brachii
Extend the elbow joint
Function of Deltoids
Abduct the arm
Function of Pectoralis Major
Rotate shoulders anterior
Adduct the arms
Function of Lattisimus Dorsi
Rotate the shoulders posteriorly and down
Adduct the arms
Function of Trapezius
Move the scapulae up and down and rotate the scapulae
Function of Rectus Abdominis
Flexion of the thoracic and lumbar spine
Function of the external obliques
Lateral Flexion of the spine
Rotation of the spine
Function of Gluteus Maximus
Extend the hip joint
Function of Iliopsoas
Flexion of the hip joint
Function of the biceps Femoris
Flex the knee
Function of the quadriceps
Extend the knee
Function of Sartorius
At the hip joint: flexion, external rotation, abduction of the leg
At the knee joint: inward (medial) rotation of the tibia against the femur
Function of the gastrocnemius
Plantarflexion of the foot
Function of tibialis anterior
Dorsiflexion of the foot
Function of the Rotator Cuff muscles
Function: to stabilize the shoulder
4 Muscles of the Rotator Cuff:
- Teres Major
- Supraspinatus
- Infraspinatus
- Subscapularis
What muscles flex the elbow joint?
3B
- Biceps Brachii
- Brachialis
- Brachioradialis
Function of supraspinatus
To abduct the arms (humerus)
Functions of the infraspinatus
External Rotation
Horizontal Abduction
Extension
Scaption
Actions of the Teres Minor
External Rotation
Weak Adduction
Extension
Actions of the Rhomboid Minor & Major
Downward Rotation
Retraction of the scapula
Actions of the Teres Major
Extension
Hyperextension
