Ribs & Sternum (Thoracic Cage): Classification, Landmarks & Clinical Anatomy @TaimTalksMed

Uploaded May 2025 | Updated September 2026, 1 week ago

🌐 Website: taimtalksmed.com
🫀 Help keep this content free: youtube.com/channel/UCEr7pkSXVsHcBLLBcJAGV-Q/join
🔬 Get 10% off anatomy lab models (affiliate link): https://anatomywarehouse.com?aff=34

📲 Other Links:
Instagram: instagram.com/taimtalksmed
Discord: discord.com/invite/DENMUpS8ey

Content:
00:00 Introduction & Content
00:38 Ribs Anatomy
01:13 True vs False Ribs
02:08 Typical Rib
04:27 Atypical Ribs
07:05 Sternum
09:33 Thorax
10:09 Outro

Ribs and Sternum Anatomy | Bones of the Thorax

Structures covered in this video:

Rib Classification by Sternum Connection:
• True ribs (Ribs 1–7)
• False ribs (Ribs 8–10)
• Floating ribs (Ribs 11–12)

Rib Classification by Structure:
• Typical ribs (Ribs 3–9)
• Atypical ribs (Ribs 1, 2, 10, 11, 12)

External and Internal Anatomy of a Typical Rib (e.g., Rib 4):
• Costal end / Sternal end (Extremitas costalis)
• Head of rib (Caput costae)
• Superior articular facet (Facies articularis superior)
• Inferior articular facet (Facies articularis inferior)
• Crest of the head (Crista capitis costae)
• Neck of rib (Collum costae)
• Tubercle of rib (Tuberculum costae)
• Articular facet of tubercle (Facies articularis tuberculi costae)
• Angle of rib (Angulus costae)
• Body/Shaft of rib (Corpus costae)
• Costal groove (Sulcus costae)

Atypical Rib Features:
• First rib
• Scalene tubercle (Tuberculum musculi scaleni)
• Groove for subclavian vein (Sulcus venae subclaviae)
• Groove for subclavian artery (Sulcus arteriae subclaviae)
• Second rib
• Tuberosity for serratus anterior (Tuberositas musculi serrati anterioris)
• Tenth to twelfth ribs
• Single articular facet
• Absence of neck and tubercle (Ribs 11 & 12)
• Free anterior ends

Muscle Attachments and Clinical Notes:
• Scalenus anterior and medius insertion on first rib
• Serratus anterior origin on first and second ribs
• Latissimus dorsi and quadratus lumborum on floating ribs
• Thoracic outlet syndrome and subclavian vessel relationships
• Common rib fracture site at rib angle
• Intercostal neurovascular bundle in costal groove

Sternum Anatomy:
• Manubrium (Manubrium sterni)
• Jugular notch (Incisura jugularis)
• Clavicular notches (Incisurae claviculares)
• First costal notch (Incisura costalis prima)
• Body of sternum (Corpus sterni)
• Costal notches for ribs 2–7 (Incisurae costales)
• Xiphoid process (Processus xiphoideus)
• Diaphragm, rectus abdominis, and transversus thoracis attachment
• Sternal angle (Angulus sterni)

Thoracic Apertures:
• Superior thoracic aperture
• Inferior thoracic aperture

Connections to Surrounding Structures:
• Costal cartilages
• Clavicle articulation (Sternoclavicular joint)
• Rib articulation (Sternocostal joints)
• Thoracic cage structure and function

Clinical anatomy and relevance:
• CPR-related xiphoid fractures
• Central venous access landmarks
• Rib fractures and costal groove neurovascular damage
• Palpation of sternal angle and rib counting

Sources:
• Kozlowski, T. (2017). Memorix Anatomy, 2nd ed.
• Standring, S. (2020). Gray’s Anatomy, 42nd ed.
• Tubbs RS, Shoja MM, Loukas M. (2016). Bergman’s Encyclopedia of Human Anatomic Variation
• White TD, Folkens PA. (2005). The Human Bone Manual

Programs used: Complete Anatomy, Biorender, PowerPoint

$Ribs & Sternum (Thoracic Cage): Classification, Landmarks & Clinical Anatomy 🌐 Website: https://taimtalksmed.com/ 🫀 Help keep this content free: youtube.com/channel/UCEr7pkSXVsHcBLLBcJAGV-Q/join 🔬 Get 10% off anatomy lab models (affiliate link): https://anatomywarehouse.com?aff=34 📲 Other Links: Instagram: https://www.instagram.com/taimtalksmed/ Discord: https://discord.com/invite/DENMUpS8ey Content: 00:00 Introduction & Content 00:38 Ribs Anatomy 01:13 True vs False Ribs 02:08 Typical Rib 04:27 Atypical Ribs 07:05 Sternum 09:33 Thorax 10:09 Outro Ribs and Sternum Anatomy | Bones of the Thorax Structures covered in this video: Rib Classification by Sternum Connection: • True ribs (Ribs 1–7) • False ribs (Ribs 8–10) • Floating ribs (Ribs 11–12) Rib Classification by Structure: • Typical ribs (Ribs 3–9) • Atypical ribs (Ribs 1, 2, 10, 11, 12) External and Internal Anatomy of a Typical Rib (e.g., Rib 4): • Costal end / Sternal end (Extremitas costalis) • Head of rib (Caput costae) • Superior articular facet (Facies articularis superior) • Inferior articular facet (Facies articularis inferior) • Crest of the head (Crista capitis costae) • Neck of rib (Collum costae) • Tubercle of rib (Tuberculum costae) • Articular facet of tubercle (Facies articularis tuberculi costae) • Angle of rib (Angulus costae) • Body/Shaft of rib (Corpus costae) • Costal groove (Sulcus costae) Atypical Rib Features: • First rib • Scalene tubercle (Tuberculum musculi scaleni) • Groove for subclavian vein (Sulcus venae subclaviae) • Groove for subclavian artery (Sulcus arteriae subclaviae) • Second rib • Tuberosity for serratus anterior (Tuberositas musculi serrati anterioris) • Tenth to twelfth ribs • Single articular facet • Absence of neck and tubercle (Ribs 11 & 12) • Free anterior ends Muscle Attachments and Clinical Notes: • Scalenus anterior and medius insertion on first rib • Serratus anterior origin on first and second ribs • Latissimus dorsi and quadratus lumborum on floating ribs • Thoracic outlet syndrome and subclavian vessel relationships • Common rib fracture site at rib angle • Intercostal neurovascular bundle in costal groove Sternum Anatomy: • Manubrium (Manubrium sterni) • Jugular notch (Incisura jugularis) • Clavicular notches (Incisurae claviculares) • First costal notch (Incisura costalis prima) • Body of sternum (Corpus sterni) • Costal notches for ribs 2–7 (Incisurae costales) • Xiphoid process (Processus xiphoideus) • Diaphragm, rectus abdominis, and transversus thoracis attachment • Sternal angle (Angulus sterni) Thoracic Apertures: • Superior thoracic aperture • Inferior thoracic aperture Connections to Surrounding Structures: • Costal cartilages • Clavicle articulation (Sternoclavicular joint) • Rib articulation (Sternocostal joints) • Thoracic cage structure and function Clinical anatomy and relevance: • CPR-related xiphoid fractures • Central venous access landmarks • Rib fractures and costal groove neurovascular damage • Palpation of sternal angle and rib counting Sources: • Kozlowski, T. (2017). Memorix Anatomy, 2nd ed. • Standring, S. (2020). Gray’s Anatomy, 42nd ed. • Tubbs RS, Shoja MM, Loukas M. (2016). Bergman’s Encyclopedia of Human Anatomic Variation • White TD, Folkens PA. (2005). The Human Bone Manual Programs used: Complete Anatomy, Biorender, PowerPoint$

Overview of the CNS (Pars, Neurons, Neuroglia, White & Grey Matter, Development) - Anatomy

Ankle & Foot Joints (Talocrural, Subtalar, Tarsal & Toe) | Ligaments & Injuries

CN 6: Abducens Nerve (Scheme, Pathway, Clinical Relevance) | Neuroanatomy

Internal Carotid Artery Scheme (Side branches, Circle of Willis) | Anatomy

Arteries of the Upper Limb Scheme (Course, Branches, Parts) | Anatomy

$The Clavicle (Collarbone): Parts, Joints, and Common Injuries | Clinical Anatomy 🌐 Website: https://taimtalksmed.com/ 🫀 Help keep this content free: youtube.com/channel/UCEr7pkSXVsHcBLLBcJAGV-Q/join 🔬 Get 10% off anatomy lab models (affiliate link): https://anatomywarehouse.com?aff=34 📲 Other Links: Instagram: https://www.instagram.com/taimtalksmed/ Discord: https://discord.com/invite/DENMUpS8ey Content: 00:00 Introduction & Content 01:20 Clavicle Anatomy 03:02 Joints of the Clavicle 03:19 Sternoclavicular Joint 04:06 Acromioclavicular Joint 05:29 Why do we have a Clavicle? 07:47 Clinical Relevance 08:42 Possible causes of pain in the Clavicle 09:53 Symptoms of Clavicle Injury 10:17 Clinical Tests of Clavicle Injuries 11:01 Treatment of Clavicle Injury Clavicle (Collarbone) Anatomy | Structure, Joints & Clinical Relevance Structures covered in this video: Clavicle Anatomy – Parts: • Sternal end (Extremitas sternalis) • Acromial end (Extremitas acromialis) • Body of the clavicle (Corpus claviculae) • Sternal facet (Facies articularis sternalis) • Acromial facet (Facies articularis acromialis) • Subclavian groove (Sulcus musculi subclavii) • Conoid tubercle (Tuberculum conoideum) • Trapezoid line (Linea trapezoidea) • Impression for costoclavicular ligament Joints Formed by the Clavicle: • Sternoclavicular joint (Articulatio sternoclavicularis) • Clavicular notch of manubrium (Incisura clavicularis) • Acromioclavicular joint (Articulatio acromioclavicularis) Ligaments of the Clavicle: • Costoclavicular ligament (Ligamentum costoclaviculare) • Interclavicular ligament (Ligamentum interclaviculare) • Anterior sternoclavicular ligament • Acromioclavicular ligament • Coracoclavicular ligament • Conoid ligament (Ligamentum conoideum) • Trapezoid ligament (Ligamentum trapezoideum) • Coracoacromial ligament (Ligamentum coracoacromiale) Associated Muscles: • Subclavius • Pectoralis major • Sternocleidomastoid • Trapezius • Deltoid Neurovascular Structures Protected by the Clavicle: • Brachial plexus • Subclavian artery • Subclavian vein Functional Anatomy: • Clavicle as a strut • Force transmission from upper limb to axial skeleton • S-shape acting as a shock absorber • Scapular suspension and positioning Clinical Anatomy and Conditions Discussed: • Clavicle fracture (Middle third most common) • Clavicle dislocation • Acromioclavicular joint injury • AC joint step-off • Cross-body adduction test • Piano key sign • OBrien’s test • Sternoclavicular joint dislocation or arthritis • Distal clavicular osteolysis (Weightlifter’s shoulder) • Cleidocranial dysplasia (Absence of clavicle) • Neurovascular injury signs (Pulse, cap refill, sensory loss) Imaging Techniques Mentioned: • AP clavicle X-ray • CT scan for subtle fractures or joint evaluation • MRI for osteolysis or soft tissue pathology • Chest X-ray to rule out associated rib fractures or pneumothorax Treatment Options: • Conservative management (sling, NSAIDs, physiotherapy) • Surgical fixation (for displaced or unstable fractures) • Grading of AC joint injuries (Type I–III) • Distal clavicle excision (arthroscopic or open) Sources: • Kozlowski, T. (2017). Memorix Anatomy, 2nd ed. • Standring S. (2020). Gray’s Anatomy, 42nd edition • Tubbs RS, Shoja MM, Loukas M. (2016). Bergman’s Encyclopedia of Human Anatomic Variation • White TD, Folkens PA. (2005). The Human Bone Manual Programs used: Complete Anatomy, Biorender, PowerPoint$

Bones of the Foot (Tarsals, Metatarsals & Phalanges) | Anatomy

Kidneys (Functions, Structures, Coverings, Nephron)

Knee Joint Anatomy & Common Injuries (Ligaments, Menisci & Movements)

Peritoneum (Parts, Lesser & Greater Omentum, Mesentery, Peritoneal Cavity)