Comparative Strength of Various Muscles Quiz

Biceps brachii flexes the forearm by contracting.

Quadriceps is the primary extensor of the knee, responsible for straightening the leg.

Deltoid is involved in lifting the arm away from the body, known as shoulder abduction.

Adductor magnus is primarily responsible for pulling the thigh toward the midline of the body.

Pronator teres is responsible for rotating the forearm inward, known as pronation.

Infraspinatus is primarily responsible for turning the shoulder outward, known as lateral rotation.

Latissimus dorsi is responsible for pulling the shoulder toward the body, known as shoulder adduction.

Gastrocnemius is involved in pointing the foot downward, known as plantar flexion.

Psoas major is involved in bending the hip joint, known as hip flexion.

Tibialis anterior is primarily responsible for turning the sole of the foot inward, known as inversion.

Anconeus is involved in straightening the elbow joint, known as elbow extension.

Flexor digitorum superficialis is involved in bending the wrist joint, known as wrist flexion.