🦴 Human Skeletal System – Appendicular Skeletal System (Explained) The appendicular skeletal system is an important part of the human skeletal system that mainly helps in movement, support, and coordination of limbs 🏃♂️🤲. It includes the bones of the upper limbs, lower limbs, and the girdles that attach these limbs to the axial skeleton. The appendicular skeleton consists of 126 bones and is divided into four main parts 📚👇 1️⃣ Pectoral Girdle (Shoulder Girdle) 🦾 The pectoral girdle connects the upper limbs to the axial skeleton. Bones included: Clavicle (Collar bone) 🦴 Scapula (Shoulder blade) 🛡️ Functions: Supports the arms 💪 Provides attachment for muscles Allows wide range of movements like lifting, pushing, pulling 🤸♂️ 2️⃣ Upper Limb Bones 🖐️ The upper limb is responsible for grasping, holding, writing, and fine movements ✍️📱. Parts and bones: Humerus (upper arm bone) Radius & Ulna (forearm bones) Carpal bones (wrist – 8 bones) Metacarpals (palm – 5 bones) Phalanges (fingers – 14 bones) ✋ Functions: Helps in daily activities Provides precision and flexibility Supports complex hand movements 🤝 3️⃣ Pelvic Girdle (Hip Girdle) 🚶♂️ The pelvic girdle connects the lower limbs to the axial skeleton and supports body weight ⚖️. Bones included: Ilium Ischium Pubis (These three bones fuse to form the hip bone) 🦵 Functions: Supports body weight Protects pelvic organs ❤️🩹 Helps in standing, walking, and sitting 4️⃣ Lower Limb Bones 🦵 Lower limbs are designed for standing, walking, running, and balance 🏃♀️⚖️. Parts and bones: Femur (thigh bone – longest and strongest bone 💪) Patella (knee cap) Tibia & Fibula (leg bones) Tarsal bones (ankle – 7 bones) Metatarsals (foot – 5 bones) Phalanges (toes – 14 bones) 👣 Functions: Bears body weight Enables movement and balance Helps in posture and locomotion 🚶♂️ ✨ Functions of Appendicular Skeletal System Enables movement and locomotion 🏃♂️ Provides support and flexibility Protects vital organs Serves as attachment for muscles 💪 Maintains posture and balance ⚖️ 📌 Conclusion The appendicular skeletal system plays a crucial role in movement, coordination, and daily activities. Without this system, actions like walking, holding objects, or writing would not be possible. It works together with muscles and joints to make the body active and functional 🧠🦴.