Nerves Of Brachial Plexus

Question 1

How many roots in the brachial plexus?

Answer 1

5 Roots

Question 2

How many trunks in the brachial plexus?

Answer 2

3 trunks

Question 3

How many divisions in the brachial plexus?

Answer 3

3 anterior divisions

3 posterior divisions

Question 4

How many cords in the brachial plexus?

Answer 4

3 cords

Question 5

How many terminal branches of the brachial plexus?

Answer 5

5 terminal branches

Question 6

Name the roots of the brachial plexus

Answer 6

C5
C6
C7
C8
T1

Question 7

Name the trunks of the brachial plexus

Answer 7

Superior
Middle
Inferior

Question 8

Name the cords of the brachial plexus

Answer 8

Lateral
Posterior
Medial

Question 9

Name the terminal branches of the brachial plexus and the corresponding roots

Answer 9

Musculocutaneous (C5,6,7)
Axillary (C5,6)
Radial (C5,6,7,8(T1))
Medial ((C5) C6,7,8,T1)
Ulnar ((C7) C8,T1)

Question 10

Which roots combine to form which trunks?

Answer 10

C5 combines with C6 to form the superior trunk
C7 continues on to become the middle trunk
C8 combines with T1 to form the inferior trunk

Question 11

Which trunks create which cords?

Answer 11

The middle trunk combines with the superior trunk to become the lateral cord
The superior and inferior trunk combine with the middle trunk to for the posterior cord
The inferior cord continues on to create the medial cord

Question 12

Which cords combine to create which terminal branches?

Answer 12

The lateral cord continues to become the musculocutaneous branch
The posterior cord bifurcate into the axillary branch and the radial branch
The lateral cord combines with the median cord to become the median branch
The medial branch continues on to become the ulnar branch

Question 13

Which roots are associated with the ulnar branch?

Answer 13

C8, T1

Question 14

Which roots are associated with the medial branch?

Answer 14

C5,6,7,8,T1

Question 15

Which root are associated with the radial nerve?

Answer 15

C5,6,7,8,T1

Question 16

Which roots are associated with the axillary branch?

Answer 16

C5,6

Question 17

Which roots are associated with the musculocutaneous branch?

Answer 17

C5,6,7

Question 18

Which trunk(s) create the lateral cord?

Answer 18

Middle trunk combines with the superior trunk

Question 19

Which trunk(s) create the posterior cord?

Answer 19

Superior and inferior trunks combine with the middle trunk

Question 20

Which trunk(s) create the medial cord?

Answer 20

Inferior trunk

Question 21

Which root(s) create the superior trunk?

Answer 21

C4 and C5

Question 22

Which root(s) create the middle trunk?

Answer 22

C7

Question 23

Which root(s) create the inferior trunk?

Answer 23

C8 and T1