Skeletal System Gross Anatomy II

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Skeletal SystemGross Anatomy II

• Lecture 7

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Appendicular Skeleton

• Girdles
• Pectoral or shoulder
• Pelvic
• Upper Limbs
• Arm (brachial)
• Forearm (antebrachial)
• Wrist (carpal)
• Hand (manus)
• Lower Limbs
• Thigh (femoral)
• Leg (crural)
• Foot (pes)

Fig. 8.1
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Pectoral Girdle

• Scapula (2)
• Acromion process
• Forms protective cover
• Attachment for clavicle
• Attachment for muscles
• Coracoid process
• Attachment for muscles
• Glenoid cavity
• Articulates with humerus
• Clavicle (2)

Fig. 8.3
Fig. 8.2
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Arm

• Humerus
• Head
• Tubercles
• Greater and lesser
• Intertubercular groove
• Capitulum
• Articulates with radius
• Trochlea
• Articulates with ulna
• Epicondyles
• Attachment of forearm muscles

Fig. 8.4
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Forearm

• Radius
• Thumb side
• Radial tuberosity (biceps brachii muscle)
• Ulna
• Little finger side
• Trochlear notch
• Olecranon process
• Radial notch

Fig. 8.5
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Wrist and Hand

• Wrist
• 8 carpals

Fig. 8.6
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Pelvis

• Os Coxae Right and Left
• Ilium
• Ischium
• Sit down bone
• Pubis
• Symphysis pubis
• Acetabulum
• Obturator foramen
• Sacrum

Fig. 8.7
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Os Coxae
Fig. 8.9
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Thigh

• Femur
• Head
• Neck
• Trochanters
• Greater and lesser
• Condyles
• Medial and lateral
• Epicondyles
• Medial and lateral
• Patella or kneecap

Fig. 8.11
Fig. 8.12
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Leg

• Tibia
• Larger and supports most of weight
• Tibial tuberosity
• Medial malleolus
• Fibula
• Articulates with tibia not femur
• Lateral malleolus

Fig. 8.13
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Foot

• Tarsals (7)
• Talus (ankle bone)
• Calcaneus (heel)

Fig. 8.14
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Points to Remember

• Appendicular skeleton includes bones of upper and
  lower limbs and pectoral and pelvic girdles
• Pectoral girdle and upper limb held in place
  largely by muscles
• Pelvic girdle has strong articulation with sacrum
  to help support weight of body

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Questions?