appendicular&axial skeleton

Download Appendicular&Axial Skeleton

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  • 1. The Appendicular Skeleton Appendicular Skeleton = Everything that is not the Axial Skeleton, i.e., pelvis and limbs www.freelivedoctor.com
  • 2. Clavicle (collarbone) Manubrium to Acromion Frequently fractured www.freelivedoctor.com
  • 3. Scapula (shoulder blade)
    • Glenoid
    • Spine
    • Acromion
    • Acromioclavicular joint
    • Inferior and Superior Angles
    • Origin of biceps brachii muscle:
      • Coracoid Process
      • Supraglenoid tubercle
    www.freelivedoctor.com
  • 4. The Arm
    • Synonym: Upper limb
      • Upper Arm = Brachium
      • Forearm = Antebrachium
    • Humerus, Radius and Ulna
    • Carpus (wrist)
    • Hand (manus)
    www.freelivedoctor.com
  • 5. Humerus
    • Head
    • Greater and Lesser Tubercles
    • Intertubercular Sulcus
      • Biceps tendon
    • Coronoid Fossa
    • Olecranon Fossa
    • Trochlea
    • Medial and Lateral Epicondyles
    www.freelivedoctor.com
  • 6. Radius Ulna
    • Head, neck, shaft
    • Insertion of biceps brachii:
      • Radial Tuberosity
    • Radial Styloid Process
    • Olecranon
    • Trochlear notch
    • Coronoid Process
    • Ulnar Styloid Process
    Interosseous Membrane (between radius and ulna) Note how the two bones can cross Funny bone www.freelivedoctor.com
  • 7. Carpus = Wrist
    • Four Proximal
      • Scaphoid, lunate, triquetrum, pisiform
    • Four Distal
      • Trapezium, trapezoid, capitate, hamate
    Scaphoid is frequently fractured www.freelivedoctor.com
  • 8. Hand = Manus
    • Five metacarpal bones (1-5)
    • Five fingers
      • Labeled 1-5
      • Thumb = Pollex = digit 1
        • Two phalangeal bones
      • Fingers = phalanges = digits 2-5
        • Three phalangeal bones
          • Proximal, middle, distal
    www.freelivedoctor.com
  • 9. The Girdles
    • Pectoral Girdle
      • Supports the Arms
      • Clavicle and Scapula
    • Pelvic Girdle
      • Supports the Legs
      • Pelvis (os coxae)
    www.freelivedoctor.com
  • 10. Pelvis = os coxae = hip bone
    • Three bones: Ilium, Ischium, Pubis (innominate bone)
    • Anterior and posterior iliac spines meet to form the iliac crest
    • Greater and Lesser Sciatic Notches
    • Ischial Tuberosity
    • Acetabulum
      • Acetabular fossa
    • Obturator Foramen
    www.freelivedoctor.com
  • 11. More Pelvis
    • Articular Surface for Articulation with Sacrum
    • Difference between male and female
    • Pelvic (or pubic) symphysis
      • Fibrocartilage
      • Stretches at childbirth (Relaxin)
    www.freelivedoctor.com
  • 12. The leg
    • AKA Lower Limb
    • Femur
    • Patella
    • Tibia/fibula
    • Tarsus
    • Foot
    www.freelivedoctor.com
  • 13. Femur
    • Head and fovea capitus
      • Articulate with pelvis
    • Neck (fx pelvis)
    • Greater and Lesser Trochanters
    • Shaft
    • Lateral and medial condyles and epicondyles
    • Intercondylar fossa
    • Patellar Surface
    www.freelivedoctor.com
  • 14. Patella = knee cap
    • Sesamoid Bone
    • Enclosed in the tendon of the quadriceps group of muscles
    Skyline MRI of patella www.freelivedoctor.com
  • 15. Tibia = shin bone
    • Lateral and medial condyles
      • Intercondylar eminence
    • Tibial tuberosity
    • Inferior articular surface
    • Medial malleolus
      • (= ankle bone)
    Interosseous Membrane www.freelivedoctor.com
  • 16. Fibula
    • Head
    • Shaft
    • Lateral malleolus
      • (= ankle bone)
    • Not weight bearing
      • Frequent fx
    Interosseous Membrane www.freelivedoctor.com
  • 17. Tarsus (7 bones) Cute Tillie Never Could Cooperate
    • Navicular
    • Cuboid
    • Cunieform (3)
    Calcaneus Talus www.freelivedoctor.com
  • 18. Foot
    • Metatarsals (1-5)
    • Phalanges (3 per toe except big toe)
    • Longitudinal Arches
      • Medial and lateral
    • Transverse Arch
    Dancers fx Cute Tillie Never Could Cooperate www.freelivedoctor.com
  • 19. Bones of the Skull www.freelivedoctor.com
  • 20. Bones of the Skull www.freelivedoctor.com
  • 21. Cranial Bones, AKA calvarium vs. Facial Bones www.freelivedoctor.com
  • 22. Bones of the Calvarium
    • Frontal (forehead)
      • Anterior fossa of base of skull
      • Frontal Crests
        • More prominent in male
      • Frontal sinuses
    • Parietal (2)
      • Sutures
    • Occipital
      • Foramen Magnum
      • Occipital Condyles articulate with C 1
      • Occipital Crest
    www.freelivedoctor.com
  • 23. Bones of the Calvarium, contd
    • Temporal (4 parts):
      • Squamous (very thin),
      • Mastoid (means breast-like) process
        • Small sinus
      • Petrous
        • Houses inner ear
        • Acoustic meatus
        • Jugular foramen
      • Zygomatic process
      • Styloid Process
    In one of these, the squamosal section of the temporal bone had been crushed, and another showed a jagged hole through the parietal bone. The Bounty Trilogy, 1788 www.freelivedoctor.com
  • 24. Bones of the Calvarium floor
    • Sphenoid
      • Sella turcica houses pituitary gland
    • Ethmoid (sieve)
      • Cribriform plate for olfactory nerve
      • Crista galli
      • Part of nasal septum
    • Frontal
    • Temporal
      • Petrous part
    • Occipital
      • Foramen magnum
    www.freelivedoctor.com
  • 25. Facial bones
    • Maxilla (2)
      • Alveolar margin for teeth
      • Maxillary sinus
      • Anterior portion o

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