What are our bones and skin made out of?
404290
Bones are made of a mix of hard stuff that gives them strength and tons of living cells which help them grow and repair themselves. Like other cells in your body, the bone cells rely on blood to keep them alive. Blood brings them food and oxygen and takes away waste. \nIf bones weren't made of living cells, things like broken toes or arms would never mend. But don't worry, they do. That's because your bone cells are busy growing and multiplying to repair the break! How? When you break your toe, blood clots form to close up the space between the broken segments. Then your body mobilizes bone cells to deposit more of the hard stuff to bridge the break. \nSkin is alive. It's made of many thin sheets of layers of flat, stacked cells in which you'll find nerves, blood vessels, hair follicles, glands, and sensory receptors. \nOlder cells are constantly being pushed to the surface by new cells which grow from below. When the old ones reach the top, they become wider and flatter as they get rubbed and worn by all your activity. And, sooner or later, they end up popping off like tiles blown from a roof in a strong wind. In fact, every minute 30,000-40,000 dead skin cells fall from your body! In approximately a month's time, your body has made a whole new layer of skin cells!\nAs an adult, you may have more than 20 square feet of skin -- about the size of a blanket. \nYou are likely to shed some 40 pounds of skin in a lifetime. \nRight now there are over a million dust mites, microscopic critters invisible to the naked eye, on your mattress and pillow, chomping on the dead skin cells that fell off you last night!
689361
Your skin, hair, nails and liver.
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cALCIUM, vITAMINS, tISSUE ETC.
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The adult human body has 206 bones, and a baby has about 300 bones when born.
15123
"...while the adult skeleton contains 206 bones, the skeleton of an infant contains 350 (the bones fuse together as you grow). And more than half of your 206 bones are found in your hands and feet."
336622
the femur in our thigh. the bone marrow there makes many white blood cells too.
216023
What do you mean?   Bones are made mostly of calcium.   There's a disease called osteoporosis which causes calcium to be removed from bones and weakens the bones.   I don't know if it is painful, but I don't believe it is.
567658
The spongy part inside of a bone is marrow. This substance creates new blood cells as the old blood cells die.
102110
A typical adult human skeleton consists of the following 206 bones.\nIn the skull (22):\n\nCranial bones: \n1. frontal bone \n2. parietal bone (2) \n3. temporal bone (2) \n4. occipital bone \nsphenoid bone \nethmoid bone \nFacial bones: \n5. zygomatic bone (2) \n6. superior and inferior maxilla \n9. nasal bone (2) \n7. mandible \npalatine bone (2) \nlacrimal bone (2) \nvomer bone \ninferior nasal conchae (2) \nIn the middle ears (6):\n\nmalleus (2) \nincus (2) \nstapes (2) \nIn the throat (1):\n\nhyoid bone \nIn the shoulder girdle (4):\n\n25. clavicle or collarbone (2) \n29. scapula or shoulder blade (2) \nIn the thorax (25):\n\n10. sternum \n28. ribs (2 x 12) \nIn the vertebral column (24):\n\n8. cervical vertebrae (7) incl. atlas & axis \n14. lumbar vertebrae (5) \nthoracic vertebrae (12) \nIn the arms (6):\n\n11. humerus (2) \n26. condyles of humerus \n12. ulna (2) \n13. radius (2) \n27. head of radius \nIn the hands (54):\n\nWrist (carpal) bones: \nscaphoid bone (2) \nlunate bone (2) \ntriquetrum bone (2) \npisiform bone (2) \nTrapezium (bone) (2) \ntrapezoid bone (2) \ncapitate bone (2) \nhamate bone (2) \nPalm or metacarpal bones: \nmetacarpal bones (5 × 2) \nFinger bones or phalanges: \nproximal phalanges (5 × 2) \nintermediate phalanges (4 × 2) \ndistal phalanges (5 × 2) \nIn the pelvis (4):\n\n15. ossa coxa (hip bones or innominate bones) (2) \n16. sacrum \ncoccyx \nIn the legs (8):\n\n17. femur (2) \n22. greater trochanter of femur \n23. condyles of femur \n19. patella (2) \n20. tibia (2) \n21. fibula (2) \nIn the feet (52):\n\nAnkle (tarsal) bones: \ncalcaneus (heel bone) (2) \ntalus (2) \nnavicular bone (2) \nmedial cuneiform bone (2) \nintermediate cuneiform bone (2) \nlateral cuneiform bone (2) \ncuboidal bone (2) \nInstep bones: \nmetatarsal bone (5 × 2) \nToe bones: \nproximal phalanges (5 × 2) \nintermediate phalanges (4 × 2) \ndistal phalanges (5 × 2) \nThe infant skeleton has the following bones in addition to those above:\n\nsacral vertebrae (4 or 5), which fuse in adults to form the sacrum \ncoccygeal vertebrae (3 to 5), which fuse in adults to form the coccyx \nilium, ischium and pubis, which fuse in adults to form the pelvic girdle
9619
Bone is a relatively hard and lightweight composite material, formed mostly of calcium phosphate in the chemical arrangement termed calcium hydroxyapatite. It has relatively high compressive strength but poor tensile strength. While bone is essentially brittle, it does have a degree of significant elasticity contributed by its organic components (chiefly collagen). Bone has an internal mesh-like structure, the density of which may vary at different points.
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Your skin is your largest organ. It covers your entire body and has a surface area of around 2 square metres. Its thickness varies from 0.5mm on your eyelids to 4mm or more on the palms of your hands and the soles of your feet. In total, it accounts for around 16 percent of your body weight.
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So lets learn cell structure. We are made of cells. Cells form tissues and tissues form organs and organs form systems and systems make the organism so we are made from cells (Microbes.). Or if you want to be very specific and start from everything before atoms then We are made up of Gluon cells inside atoms.The structure of a cell is a cytoplasm or liquid bag in the center. Cell tissue inside most of it and and a nucleus inside the cytoplasm. I hope sincerely that this answers your question.
670448
First, the bones are the structural support for muscles, nerves, blood and lymph circulation systems, as well has holding the various organs and glands in place.\n\nMay I recommend a few?
492523
Amino acids.\n\nOH, I thought you asked what they are made OF. Sorry - Ribosomes!
575706
humans and most lifeforms are chiefly made of water ( 98% ).\n\nthus, the principal components are HYDROGEN and OXYGEN.\n\nProteins and Fats comprise most of the remaining substances ( muscle and flesh ).  the main atoms here in addition to the above are CARBON and NITROGEN.\n\nOther elements (atoms) include CALCIUM ( bones ) and SULFUR ( hair ).\n\nTrace elements ( very little < 0.1 % ) include IRON ( blood ), PHOSPHORUS ( bone ) , and MAGNESIUM.\n\nThere is even COPPER, ZINC, and GOLD ( extremely low ) present in certain enzymes  in order for them to function !\n\nhope your question was answered !
7537
Anything made of cartilidge.  The cornea of your eye.  Skin as mentioned before and nails and hair.  By saying "only" you imply that there is one answer, but there are many answers.
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it depends on what you consider a body part... just bones?  bones and muscles?  And tendons... ligaments....