temple

Eye [disabled part]

ridge of the nose

Neck [fatal point]

chin

Adam's apple

collarbone

chin

2. The key to attack and defense in the middle section:

Solar plexus [vertigo key]

floating rib

Abdomen [vital]

3. The key to attack and defense in the next paragraph:

prevent

Medial and lateral thighs

The medial and lateral sides of the knee joint.

Gaskin's fatal flaw

leg

instep