*☔SUMMARY OF HUMAN PHYSIOLOGY〽️ (Optimized)* ©DANI-[03313067328] *Muscles & Bones:* - Number of Muscles: **639** - Number of Bones: **206 (Adult)**, **306 (Newborn)** - Number of Ribs: **24 (12 pairs)** - Bones in Skull: **22** - Bones in Face: **14** - Bones in Chest: **25** - Bones in Spine: **33** (Neck: **7**) - Bones in Arm: **6** - Bones in Hand: **27** (Wrist: **8**) - Bones in Foot: **33** - Smallest Bone: **Stapes** - Largest & Strongest Bone: **Femur** **Blood & Circulation:** - Largest Artery: **Aorta** - Normal Blood Pressure: **120/80 mmHg** - pH of Blood: **7.4** - Blood Volume: **4–5 liters** - Life Span of RBC: **120 days** - Life Span of WBC: **13–20 days** - Universal Donor: **O** - Universal Recipient: **AB** - Blood Bank: **Spleen** - Plasma: **Fluid part of blood** **Heart & Pulse:** - Number of Heart Chambers: **4** - Pumps in Heart: **2** - Pulse Rate: **72 beats per minute** **Organs & Systems:** - Largest Organ: **Skin** - Largest Gland: **Liver** - Largest Endocrine Gland: **Thyroid** - Largest Lymphatic Organ: **Spleen** - Largest Part of Brain: **Cerebrum** - Smallest Muscle: **Stapedius (Middle Ear)** **Digestive System:** - Length of Small Intestine: **7m** - Length of Large Intestine: **1.5m** **Reproductive System:** - Biggest Cell: **Female Ovum** - Smallest Cell: **Male Sperm** - Pregnancy Period: **280 days (40 weeks)** **Miscellaneous:** - Average Weight of Newborn: **2.6kg** - Normal Body Temperature: **37°C (98.4°F)** - Normal Blood Sugar: **100mg/dl** - Normal Blood Cholesterol: **250mg/dl** - Viscosity of Blood: **4.5–5.5** **Quick Facts:** - First Transplanted Organ: **Heart** - Non-Nucleated Blood Cell: **RBC** - RBC Production Site: **Bone Marrow** - "River of Life": **Blood** This summary is concise yet covers everything essential for quick review! 💡