Question

how many spinal cord enlargements correspond to regions where nerves that innervate the limbs emerge?

five

two

four

three

one

Explanation:

The spinal cord has two enlargements related to limb innervation. The cervical enlargement (C₅ - T₁) innervates the upper limbs, and the lumbosacral enlargement (L₁ - S₃) innervates the lower limbs.

Answer:

Two