Zoology Group

Sphygmomanometer used to measure blood pressure
This is specifically a mercury sphygmomanometer

This is an electric sphygmomanometer

Stethoscope. Used to listen to heart lungs and bowels sounds.

Pulse oximeter measures how saturated O2 is in the body

📌 `SUMMARY OF HUMAN PHYSIOLOGY`

🎓Number of Muscles 639

🎓Number of Kidneys 2

🎓 Number of Milk Teeth 20

🎓 Number of Ribs 24 (12 pair)

🎓 Number of Heart Chamber 4

🎓Largest artery Aorta

🎓Normal blood pressure
120/80mmHg

🎓 Ph of Blood 7.4

🎓 Number of vertebrae in the Spine 33

🎓 Number of vertebrae in the Neck 7

🎓Number of Bones in Middle Ear 6

🎓 Number of Bones in Face 14

🎓Number of Bones in Skull 22

🎓 Number of Bones in Arms 6

🎓Number of Muscles in Human Arm 72

🎓Number of Pumps in Heart 2

🎓 Largest Organ Skin

🎓 Largest gland Liver

🎓 Biggest cell female O**m

🎓 Smallest cell male S***m

🎓 Smallest Bone Stape

🎓 First transplanted Organ Heart

🎓 Average length of Small Intestine 7m

🎓 Average length of Large Intestine 1.5m

🎓 Pulse rate in One Minute 72 times

🎓 Normal body temperature 37 C° (98.4 F°)

🎓 Average Blood Volume 4 to 5 liters

🎓 Life Span of RBC 120 days

🎓 Life Span of WBC 13to 20 days

🎓 Pregnancy Period 280 days (40 week)

🎓 Number of Bones in Human Foot 33

🎓 Number of Bones in Each wrist 8

🎓 Number of Bones in Hand 27

🎓 Largest Endocrine gland Thyroid

🎓Largest Lymphatic Organ Spleen

🎓 Largest part of Brain Cerebrum

🎓 Largest & Strongest Bone Femur

🎓 Smallest Muscle Stapedius (Middle Ear)

🎓 Number of Chromosome 46 (23 pair)

🎓 Number of Bones in new Born baby 306

🎓 Viscosity of Blood 4.5 to 5.5

🎓 Universal Donor Blood Group O

🎓 Universal Recipient Blood Group AB

🎓 Largest WBC Monocyte

🎓 Smallest WBC Lymphocyte lb

🎓 Increase RBC count called Polycethemia

🎓 Blood Bank in the Body is Spleen

🎓 Non Nucleated Blood cell is RBC

🎓 RBC produced in the Bone Marrow

🎓 River of Life is Called Blood

🎓 Normal Blood Cholesterol level 250mg/dl

🎓 Fluid part of Blood is Plasma

🎓 Normal Blood Sugargg 100mg

Mangoes are loved for their sweet taste, but they also provide important nutrients that support immunity, digestion, eye health, and energy 💛✨. Rich in vitamins A and C, mangoes can help support healthy skin, better vision, and overall wellness when eaten in moderation. 👀🍃

Many people fear fruits because of sugar, but natural fruits also contain fiber and nutrients that processed sweets lack. Fresh, ripe mangoes are usually a healthier choice than sugary canned or processed versions. 🥭🚫

Like every food, portion balance matters. Enjoying mangoes as part of a healthy diet can satisfy cravings naturally while giving your body valuable nutrients and energy. 🌞💪

Weird medical facts you probably don’t know:

1. Some people are born with their organs flipped like a mirror image, a condition called situs inversus.

2. Some people’s hearts point to the right side of the chest instead of the left. That’s called dextrocardia.

3. The liver can regrow to normal size even after a large part of it is removed.

4. You can live without a spleen, but infections become more dangerous afterward.

5. Some people are born unable to feel physical pain, which sounds cool until you realize pain is the body’s alarm system.

6. A rarer version also prevents people from sweating, making overheating a serious risk.

7. Rabies is almost always fatal once symptoms appear, but it is preventable if treated quickly after exposure.

8. There is a condition where muscles, tendons, and ligaments slowly turn into bone. It’s called fibrodysplasia ossificans progressiva.

9. Some tumors can grow hair, teeth, bone, or muscle. They’re called teratomas.

10. A person can feel pain in a limb that no longer exists after amputation. That’s phantom limb pain.

11. Your gut can, in rare cases, ferment carbohydrates into alcohol inside your body. It’s called auto-brewery syndrome.

12. A mother can carry fetal cells from pregnancy in her body for decades.

13. Some babies are born with thick, hard, plate-like skin that cracks; this is harlequin ichthyosis.

14. A person’s skin can turn bluish-gray permanently from silver buildup, a condition called argyria.

15. Blood can look chocolate-brown in methemoglobinemia, a condition where hemoglobin cannot carry oxygen properly.

16. Your stomach does not digest itself because mucus-producing cells create a barrier against stomach acid.

17. People can sometimes become aware during general anesthesia, though estimates vary widely.

18. “Werewolf syndrome” is a real medical nickname for hypertrichosis, excessive hair growth on the body.

19. “Tree man syndrome” involves unusual susceptibility to HPV infections that can cause bark-like skin growths.

20. Progeria causes children to show signs of rapid aging very early in life.

21. F***l microbiota therapy can be used medically to prevent recurrent C. difficile infection.

22. Viruses that kill bacteria, called bacteriophages, are being studied and used as alternatives or complements to antibiotics.

23. Your microbiome contains trillions of microbes that affect digestion, immunity, and disease risk.

24. People without spleens often need extra infection precautions because the spleen helps fight certain infections.

25. A donor heart can keep beating outside the body during transport using special “heart in a box” technology.

26. Some people with situs inversus may not know they have it because the organs can still function normally.

27. In FOP, even minor tissue trauma can contribute to abnormal bone formation, so invasive procedures can be risky.

28. Congenital pain insensitivity is dangerous because injuries, burns, and fractures can go unnoticed.

29. Harlequin ichthyosis affects the skin barrier, raising risks like infection, dehydration, and breathing difficulty.

30. Argyria is usually considered permanent once the discoloration happens.

31. Methemoglobinemia can make skin, lips, or nails look blue because oxygen delivery is impaired.

32. Teratomas can occur in ovaries, te**es, the tailbone, brain, chest, or abdomen.

33. Auto-brewery syndrome can make someone appear intoxicated even when they deny drinking alcohol.

34. Phantom limb pain is real pain, not “imaginary” pain.

35. The stomach’s acid is harsh enough to damage the esophagus during reflux, which is why chronic reflux matters.

36. The liver’s regenerative power is unusual among human organs.

37. Bacteriophages can be highly specific, targeting certain bacteria without infecting human cells.

38. Some microbiome-based medicines are literally built around restoring healthy gut bacteria.

39. In methemoglobinemia, oxygen may be present in the blood but trapped in a form that tissues cannot use efficiently.

40. One of the weirdest truths in medicine: the body is not one machine. It is an ecosystem, repair system, chemical factory, immune network, and electrical system all running at once.

*🧠 Dementia vs. Alzheimer’s — Understanding the Difference*

Many people use dementia and Alzheimer’s interchangeably, but they are not the same thing. Dementia is a broad term used to describe symptoms that affect memory, thinking, reasoning, and daily functioning. Alzheimer’s disease, on the other hand, is a specific brain disease — and the most common cause of dementia.

Coconut is one of those natural foods that fits almost every lifestyle 🌴. Tender coconut water helps keep you hydrated during hot days, workouts, or after feeling drained. Mature coconut provides healthy fats that can keep you energized and full for longer, while coconut milk adds richness along with nutrients that support digestion and overall wellness. 🥛✨

Many people love coconut because it’s refreshing, versatile, and naturally satisfying. Whether it’s coconut water after a workout or coconut milk in meals, small additions can support hydration, energy, and gut health. Just remember balance matters, especially with calorie-rich coconut products. Healthy choices work best when enjoyed in moderation. 💪🥥