Upper limb muscles
From WikiLectures
The muscles of the upper limb include the following muscle groups:
Shoulder and scapular muscles[edit | edit source]
- Musculus deltoideus
- Musculus supraspinatus
- Musculus infraspinatus
- Musculus teres minor
- Musculus teres major
- Musculus subscapularis
Arm muscles[edit | edit source]
Anterior group[edit | edit source]
Posterior group[edit | edit source]
The Septa go from the periosteum to the superficial fascia of the arm and create the osteofascial spaces:
- Septum intermusculare brachii mediale - goes from the tendon of the latissimus dorsi and teres major muscles to the medial epicondyle of the humerus;
- Septum intermusculare brachii laterale - goes from the attachment of the deltoideus muscle to the lateral epicondyle.
Forearm muscles[edit | edit source]
Anterior group[edit | edit source]
- surface layer
- second layer
- third layer
- fourth, deep layer
Lateral group[edit | edit source]
- surface layer
- deep layer
Dorsal group of forearm muscles[edit | edit source]
- surface layer
- deep layer
Hand muscles[edit | edit source]
Thumb – thenar group[edit | edit source]
- Musculus abductor pollicis brevis
- Musculus flexor pollicis brevis
- Musculus opponens pollicis
- Musculus adductor pollicis
Little finger – hypothenar group[edit | edit source]
- Musculus palmaris brevis
- Musculus abductor digiti minimi (hand)
- Musculus flexor digiti minimi brevis (hand)
- Musculus opponens digiti minimi (hand)
Muscles of the middle space[edit | edit source]
- Musculi lumbricales manus
- Musculi interossei manus
- Musculi interossei palmares I–III
- Musculi interossei dorsales I–IV
