The human skeletal system
Chapter 1
The living architecture of bone
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Chapter 2
The axial skeleton protecting the core
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Chapter 3
The appendicular skeleton designed for movement
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Chapter 4
The lifetime journey of bones
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Chapter 5
What bones leave behind
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YOUR GOAL
Master of The human skeletal system
Ch 5 · What bones leave behind
Fun Fact
Whale hands: Flippers of whales contain five bony fingers, showing a clear skeletal connection to the human hand from a shared land ancestor.
Glossary
skeleton (noun)
An internal or external framework of bone, cartilage, or other rigid material supporting an organism's body. In 1974, researchers in Ethiopia discovered Lucy, a skeletal specimen dating back over three million years.
An internal or external framework of bone, cartilage, or other rigid material supporting an organism's body. In 1974, researchers in Ethiopia discovered Lucy, a skeletal specimen dating back over three million years.
Quiz
Which part of the human skeleton is the most durable and survives the longest in the fossil record?
Quiz
Which bone suture's gradual fusion helps forensic anthropologists estimate the age of a deceased adult?
Quiz
What term describes structures like human arms and whale flippers that share a common evolutionary ancestor?
Quiz
Which skeletal structure is the most reliable indicator for determining biological sex in forensics?
Quiz
How can forensic scientists estimate a person's living height using only skeletal remains?
Quiz
What is the name of the main protein found in bones that can survive for thousands of years?
Quiz
What is the process called when minerals from groundwater replace organic bone over millions of years?