Starting at week 6, the embryo’s skeleton begins to ossify to create a skeleton made up of bone tissue. A bony skeleton is needed to protect vital organs like the brain, heart, lungs, etc. Explain the process of Intramembranous ossification and endochondral ossification. Why is it important that expecting mothers increase calcium intake throughout pregnancy? What happens when an expecting mother fails to ingest additional calcium during pregnancy (i.e., what does she increase her risk of as she ages)?
Ossification: Bone tissues form
Skull + Ribs: Starting tissue: collagen > intramembranous ossification > Bone
Arms + leg: Starting tissue: cartilage > endochondral ossification > Bone
Mothers need to have additional calcium or else baby's bone will be weak and have osteoporosis.