Whiplash injuries during an automobile accident are caused by the inertia of the head. If someone is wearing a seatbelt, her body will tend to move with the car seat. However, her head is free to move until the neck restrains it, causing damage to the neck. Brain damage can also occur. FIGURE 1 shows two sequences of head and neck motion for a passenger in an auto accident. One corresponds to a head-on collision, the other to a rear-end collision. Which is which? Explain.

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Whiplash injuries during an automobile accident are caused by the inertia of the head. If someone is wearing a seatbelt, her body will tend to move with the car seat. However, her head is free to move until the neck restrains it, causing damage to the neck. Brain damage can also occur.

FIGURE 1 shows two sequences of head and neck motion for a passenger in an auto accident. One corresponds to a head-on collision, the other to a rear-end collision. Which is which? Explain.

The image shows two diagrams labeled (a) and (b), each illustrating the movement of a human head and neck over time.

Diagram (a):
- Depicts the motion of the head bending backwards.
- The sequence from left to right shows the head gradually tilting back.
- The neck is shown with lines indicating motion, suggesting a normal range of extension.

Diagram (b):
- Depicts the motion of the head bending forwards.
- The sequence from left to right shows the head progressively tilting forward.
- Similar to (a), the neck has lines indicating movement, suggesting a normal range of flexion.

Both diagrams are used to demonstrate neck mobility, highlighting the backward and forward ranges of motion over time.
Transcribed Image Text:The image shows two diagrams labeled (a) and (b), each illustrating the movement of a human head and neck over time. Diagram (a): - Depicts the motion of the head bending backwards. - The sequence from left to right shows the head gradually tilting back. - The neck is shown with lines indicating motion, suggesting a normal range of extension. Diagram (b): - Depicts the motion of the head bending forwards. - The sequence from left to right shows the head progressively tilting forward. - Similar to (a), the neck has lines indicating movement, suggesting a normal range of flexion. Both diagrams are used to demonstrate neck mobility, highlighting the backward and forward ranges of motion over time.
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