-
Pectoralis Major
- Medial Clavicle, Sternum and Costal Cartilages of Ribs #1-7
- Lateral Lip of the Bicipital Groove of the Humerus
- ADDUCTS, MEDIALLY ROTATES and FLEXES the arm at the shoulder jt
- Medial and Lateral Pectoral
-
Pectoralis Minor
- Ribs #3-5
- Coracoid Process of the Scapula
- PROTRACTS and DEPRESSES the scapula at scapulocostal jts
- ELEVATES ribs #2-5 at sternocostal and cosstospinal jts
Medial and Lateral Pectoral
-
Subclavius
- 1st Rib
- Clavicle
- DEPRESSES the clavicle at the sternoclavicular jt
- ELEVATES the 1st rib at sternocostal and costospinal jts
- Nerve to Subclavius
-
External Intercostals
- In the intercostal spaces of Ribs #1-12, from the inferior border of one rib
- To the superior border of the rib directly inferior
- ELEVATES ribs #2-12 at sternocostal and costospinal jts
- Intercostal Nerves
-
Internal Intercostals
- In the intercostal spaces of Ribs #1-12, from the superior border of one rib and it's costal cartilage
- To the inferior border of the rib and its costal cartilage that is directly superior
- DEPRESSES ribs #1-11 at sternocostal and costospinal jts
- Intercostal Nerves
-
Transversus Thoracis
- Internal surfaces of the Sternum, Xiphoid Process, and the Adjacent Costal Cartilages
- Internal surface of Costal Cartilages #2-6
- DEPRESSES ribs #2-6 at sternocostal and costospinal jts
Intercostal Nerves
-
Rectus Abdominis
- Crest of the Pubis and Symphysis Pubis
- Xiphoid Process and the Cartilage of Ribs #5-7
- FLEXES the trunk at spinal jts
- POSTERIORLY TILTS the pelvis at the lumbosacral jt
- COMPRESSES abdominal contents
- Intercostal Nerves T5-T12
-
External Abdominal Obliques
- Anterior Iliac Crest, Pubic Crest and Tubercle, and the Abdominal Aponeurosis
- Inferior Border of the lower 8 Ribs
- FLEXES, LATERALLY FLEXES and CONTRALATERALLY ROTATES the trunk at spinal jts
- POSTERIORLY TILTS the pelvis at lumbosacral jt
- COMPRESSES abdominal contents
Intercostal Nerves T7-T12
-
Internal Abdominal Obliques
- Inguinal Ligaments, Iliac Crest and the Thoracolumbar Fascia
- Lower 3 Ribs and Abdominal Aponeurosis
FLEXES, LATERALLY FLEXES and IPSILATERALLY ROTATES the trunk at spinal jts - POSTERIORLY TILTS the pelvis at lumbosacral jt
- COMPRESSES abdominal contents
- Intercostal Nerves T7-L1
-
Transversus Abdominis
- Inguinal Ligament, Iliac Crest, Thoracolumbar Fascia, and the Costal Cartilages of ribs #7-12
- Abdominal Aponeurosis
- COMPRESSES the abdominal contents
Intercostal Nerves T7-L1
-
Diaphragm
- STERNAL PART:Internal Surface of the Xiphoid Process
- COSTAL PART:Internal Surface of the Lower 6 Ribs and their Costal Cartilages
- LUMBAR PART:L1-3 on the right and L1-2 on the left
- Central Tendon of the Diaphragm
- INCREASES the volume of the thoracic cavity (INSPIRATION)
- Phrenic Nerve
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