just help solve this questions please:

1. Loss of medial and lateral pectoral nerves only cause the loss of one function? What is it?

2. A 10yr old fractures her humerus @ surgical neck. What damage should you check for & how?

3. Headache from the back of the neck, up over the back of the head, is due to “strangulation” of the greater occipital nerve by what muscle?