Notes on Neurovascular Bundle

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Ventral rami:

Ventral rami of thoracic spinal nerves track along underside of each rib, in the costal groove, between internal and innermost muscle layers.

Intercostal Arteries:

Intercostal arteries are a fusion of anterior and posterior intercostal vessels.

Posterior Intercostal Arteries:

Posterior intercostal arteries come directly from thoracic aorta.

Anterior Intercostal Arteries:

Anterior intercostal arteries commence at the sternum as branches of internal thoracic artery, itself ultimately a branch of the aorta.

Internal Thoracic Artery:

Internal thoracic artery splits at the costal margin into a branch that continues to track the ribcage margin inferiorly (musculophrenic artery) and a branch that follows more directly onto the abdominal wall (superficial epigastric artery).

Finally, the internal surface of the thoracic wall is lined by a specialization of the deep fascia called endothoracic fascia.

More Topics on Chest Wall:

1. Osteology of Pectoral Region
2. Glandular Structure of the Mammary Gland
3. Development of the Breast
4. Fluid Circulation in the Breast
5. Muscles of the Pectoral Region
6. Intercostal Connective Tissue
7. Notes on Neurovascular Bundle

Additional Reading:

Histology and Cytology

1. Cell Components
2. Nervous Tissue
3. Muscle Tissue
4. Lymphoid Tissue
5. Integument
6. Respiratory System
7. Gastrointestinal System
8. Renal/Urinary System
9. Male Reproductive System
10. Female Reproductive System

Gross Anatomy

1. Back and Nervous System
2. Thorax
3. Abdomen, Pelvis, and Perineum
4. Upper Limb
5. Lower Limb
6. Head and Neck
7. Chest Wall
8. Shoulder

Anatomy Videos

1. Video of Musculoskeletal Examination in a Clinical Setting
1. Video of HEENT Examination in a Clinical Setting

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