Question

Starting at the spinal cord, the subdivisions of the brachial plexus are, in order ________?

1) rami, trunks, divisions, and cords
2) rami, divisions, cords, and trunks
3) divisions, rami, trunks, and cords
4) trunks, divisions, cords, and rami

Answer 1

The subdivisions of the brachial plexus, starting from the spinal cord, are rami, trunks, divisions, and cords. This plexus originates from spinal nerves C4 to T1 and supplies the nerves of the arms.

Step-by-step explanation:

The subdivisions of the brachial plexus, starting from the spinal cord, are rami, trunks, divisions, and cords. This is the correct order. The brachial plexus is a network of nerves that originates from spinal nerves C4 to T1 and supplies the nerves of the arms. It is responsible for providing motor control and sensation to the upper limbs.