Upper Body Muscles
- Pectoralis Mayor (Pectorals)
- Serratus Anterior
- Rectus Abdominus (Abs)
- Obliques
- Trapezius
- Latisimus Dorsi (Lats)
- Infraspinatus, Teres Minor, Teres Mayor, Rhomboid Mayor
- Links
Full Upper Body ^
General Torso Anatomy References
Upper Body Muscles From Multiple sides and poses
Pectoralis Mayor (Pectorals) ^
| MUSCLE | Pectoralis Mayor |
|---|---|
| - |  |
| ORIGIN | Clavicle, Sternum, Top of the Rectus Abdominus |
| INSERTION | Upper part of Humerus |
| Functions | • Arm flexion • Arm extension • Arm abduction • Arm internal rotation |
| Remembering help | Pecs |
The Pectoralis Mayor is split into 3 parts.
- The
Clavicular part, which is at thetop - The
Sternocostal part, which is in themiddle - The
Abdominal part, which is at thebottom
| MUSCLE | Pectoralis Mayor Clavicular part (top) |
Pectoralis Mayor Sternocostal part (mid) |
Pectoralis Mayor Abdominal part (bot) |
|---|---|---|---|
| - | |||
| ORIGIN | Medial(Inner) half of Clavicle | Anterior Surface of Sternum (Middle of Sternum) | Top of the Rectus Abdominus |
| INSERTION | The Tubercle Grove of the Top of the Humerus Shaft | The Tubercle Grove of the Top of the Humerus Shaft | The Tubercle Grove of the Top of the Humerus Shaft |
More Pectoralis Mayor Anatomy References
Serratus Anterior ^
| MUSCLE | Serratus Anterior |
|---|---|
| - |  |
| ORIGIN | Ribs (1 - 8/10) |
| INSERTION | Scapula |
| Functions | • Scapula (shoulder) movement/ rotation |
| Remembering help | Serrated Blade |
More Serratus Anterior Anatomy References
Rectus Abdominus (Abs) ^
| MUSCLE | Rectus Abdominus |
|---|---|
| - |  |
| ORIGIN | Pubic Symphysis and Pubic Crest (Center of Pubis) |
| INSERTION | Xiphoid Process (Bottom tip) of Sternum, Costal Cartilages (Inner part) of ribs 5-7 |
| Functions | • Trunk flexion • Moves the body between the ribcage and the pelvis |
| Remembering help | Abdominal Area, Rectus = Upright |
More Rectus Abdominus Anatomy References
Obliques ^
It's good to know about the Internal Obliques, they can however not be seen, because the External Obliques cover them. This is also why the External Obliques are often simply called Obliques.
The External Obliques almost fully cover the Rectus Abdominus (Abs), the part of the External Obliques that cover the Rectus Abdominus is however the thinnest and thus not really obscuring the Rectus Abdominus in mid/ stronger bodies.
| MUSCLE | External Obliques | Internal Obliques |
|---|---|---|
| - |  |
 |
| ORIGIN | External surfaces of ribs 5-12 | - |
| INSERTION | Linea Alba (Ligament that runs from Sternum tip to Pelvis), Pubic Tubercle, Iliac Crest | - |
| Functions | • Trunk flexion • Trunk rotation |
- |
| Remembering help | - | - |
More Obliques Anatomy References
Trapezius ^
| MUSCLE | Trapezius |
|---|---|
| - |
 
|
| ORIGIN | Lower Back of Skull, Spine |
| INSERTION | Clavicle, Scapula |
| Functions | • Posture • Stand straight • Head up down and turn • Shoulder movement/ Scalpula control |
| Remembering help |
The Trapezius is split into 3 parts.
- The
Descending part, being theupperpart - The
Transverse part, being themiddlepart - The
Ascending part, being thelowerpart
| MUSCLE |
Trapezius Descending part (upper) |
Trapezius Transverse part (middle) |
Trapezius Ascending part (lower) |
|---|---|---|---|
| - | |||
| ORIGIN | Superior Nuchal Line (Lower Back of Skull) | C1-T3 Vertebrae (Upper/ Cervical Spine) | T4-T12 Vertebrae (Mid/ Thoracic Spine) |
| INSERTION | Lateral Third of Clavicle (Outer part of Clavicle) | Spine and Acromion Process of Scapula (Spine of Scapula continues into the Acromion Process) | Medial End of Scapula Spine (Inner Side of Scapula) |
More Trapezius Anatomy References
The Cervical Area is a diamond shaped part of the Trapezius and the spine bones are especially pronounced here
Latisimus Dorsi (Lats) ^
| MUSCLE | Latisimus Dorsi |
|---|---|
| - |  |
| ORIGIN | ToDo: T7-T12 vertebrae(Middle/ Thoracic Spine) |
| INSERTION | |
| Functions | |
| Remembering help | Sharks have a dorsal fin in this area |
| MUSCLE | Thoracolumbar Fascia | Sacral Area |
|---|---|---|
| - |  |
 |
| Location | ||
| Info | A diamond shaped part of the Latisimus Dorsi | A triangle shaped part at the bottom of the Latisimus Dorsi |
More Latisimus Dorsi Anatomy References
Infraspinatus, Teres Minor, Teres Mayor, Rhomboid Mayor ^
| MUSCLE | Infraspinatus | Teres Minor | Teres Mayor | Rhomboid Mayor |
|---|---|---|---|---|
| - |  |
 |
 |
 |
| INFO | Follows the Scapula Spine | Smallest of the 4 | The Rhomboid Mayor can only be rarely seen, because it hides behind the mighty Trapezius. It's only seen allot when the arm rotates upwards or forwards. | |
| ORIGIN | Medial Border (Scapula)/ Infraspinous Fossa (Scapula) | Lateral border (Scapula) | Inferior Angle (Scapula) | Medial Border (Scapula) |
| INSERTION | Humerus Tubercle | Humerus Tubercle | Humerus Front | Vertebrae (T2-T5) |
More Infraspinatus, Teres Minor, Teres Mayor and Rhomboid Mayor Anatomy References
Links ^
- Male - Muscles As Separate SubTools (Lukas Kutschera)
- Male (Julian Khor)
- Male - Speed
- Male
- Female - Pose
- 2D - Female (David Finch)
- 2D - Female
- Clay - Female - Pose