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- Introduction
- Q1A
- Q8A
- Q9A
- Q1 - Dentition
- Q4A
- Q6A
- Q2A
- Q7A
- Q7B
- Q2 - Cranial Morphology
- Q9B
- Q1B
- Q2B
- Q6B
- Q4B
- Q8B
- Q3 - Direction terms
- Q6C
- Q4C
- Q7C
- Q4D
- Q4 - Phylogenetics
- Exam Practice
- Q5 - Locomotion
- Q4E
- Q6 - Robust vs Gracile
- Q7 - Early Homo
- Q8 - Homo erectus
- Q9 - Later Homo
- Q10 - Brain/Language
- Q11 - Vocabulary
Question 5 - Locomotion
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The innominate from H.sapiens is different from chimps because it is adapted to bipedal walking in several ways:
- The hip sockets are wider to match the greater weight they transmit.
- The pelvis is shorter, which aids balance.
- The ilium (blade) is broad, improving leverage for the muscles that keep the body straight.
- It is more curved, which helps the muscles that keep the body stable and in an upright position.
- It is bowl shaped, which supports the internal organs.
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10
Below you will see the innominates from Pan troglodytes (chimp) and Homo sapiens. What are the structural differences and what do they mean for locomotion?
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The innominate from H.sapiens is different from chimps because it is adapted to bipedal walking in several ways:
- The hip sockets are wider to match the greater weight they transmit.
- The pelvis is shorter, which aids balance.
- The ilium (blade) is broad, improving leverage for the muscles that keep the body straight.
- It is more curved, which helps the muscles that keep the body stable and in an upright position.
- It is bowl shaped, which supports the internal organs.
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10
