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# Pectoral Girdle (Shoulder) The pectoral girdle consists of the clavicle (collar bone) and the scapula (shoulder blade). * **Acromion:** The tip of the shoulder, where the clavicle attaches. * **Glenoid cavity:** Socket where the humerus (upper arm bone) joins. * **Coracoid process:** Infer...

# Pectoral Girdle (Shoulder) The pectoral girdle consists of the clavicle (collar bone) and the scapula (shoulder blade). * **Acromion:** The tip of the shoulder, where the clavicle attaches. * **Glenoid cavity:** Socket where the humerus (upper arm bone) joins. * **Coracoid process:** Inferior to the acromion, where some pectoral muscles attach. # Pelvic Girdle (Hip) The pelvic girdle results from the fusion of 3 bones. * **Male:** Pelvic inlet is smaller and heart-shaped. * **Female:** Pelvic inlet is larger and wider. # Lower Limb * **Thigh:** The upper leg section. * **Leg:** The lower leg section. * **Knee cap (Patella):** Provides mechanical advantage to the quadriceps muscles (50% stronger). * **Foot:** Includes tarsals, metatarsals, and phalanges. # Additional Notes * **Clavicle (Collar bone):** * **Humerus:** Upper arm bone. * **Acetabulum:** A large socket in the pelvic girdle. * **Greater trochanter:** A prominent bony projection in the hip bone. * **Cartilage:** Provides support and cushioning in joints. * **Operative foramen:** A passageway for nerves and muscles in the pelvis. * **Tibia (Shin bone):** Medial (inner) weight-bearing bone in the lower leg, the calcaneus (heel bone) is the largest and receives about half of the body's weight. * **Medial:** Middle location. * **Long:** Length of the bone. * **5 metatarsals:** 5 bones in the foot for each toe.