Adduction

Adduction is a form of movement in animal biology which brings a part of the anatomy closer to the sagittal plane of the body. The opposite of adduction is abduction.

Muscles of adduction
Upper limb
 of arm at shoulder (lowering arm)
 Subscapularis
 Teres major
 Pectoralis major
 Infraspinatus
 Triceps brachii (caput longum)
 Latissimus dorsi
 Coracobrachialis

 of hand at wrist
 Flexor carpi ulnaris
 Extensor carpi ulnaris

 of fingers
 Palmar interossei

 of thumb
 Adductor pollicis

Lower limb
 of thigh at hip
 medial compartment of thigh/adductor muscles of the hip
 Adductor longus
 Adductor brevis
 Adductor magnus
 Pectineus
 Gracilis

 of toes (S2-S3)
 Adductor hallucis
 Plantar interossei

Other
 vocal folds
 Lateral cricoarytenoid muscle

 eyeball
 Superior rectus muscle
 Inferior rectus muscle
 Medial rectus muscle

Adduction in Scallops
Scallops have a central adductor muscle. It lets them open and close their shells. It is quite large and developed compared to other bivalves because they swim a lot.

References

Category:Anatomy