Brachial plexus

Question 1

what are the spinal nerves that make up the brachial plexus?

Answer 1

C5, C6, C7, C8, T1

Question 2

what branches make up the superior trunk?

Answer 2

C5 and C6

Question 3

what branches make up the middle trunk?

Answer 3

C7

Question 4

what branches make up the inferior trunk?

Answer 4

C8 and T1

Question 5

what are the two divisions?

Answer 5

anterior and posterior

Question 6

what makes up the lateral cord?

Answer 6

anterior divisions from the middle and superior trunk

Question 7

what makes up the posterior cord?

Answer 7

posterior divisions from all the trunks

Question 8

what makes up the medial cord?

Answer 8

anterior division of the inferior trunk

Question 9

what makes up the musculocutaneous branch?

Answer 9

the lateral cord

Question 10

what makes up the axillary branch?

Answer 10

a branch of the posterior cord

Question 11

what makes up the median branch?

Answer 11

branches from the lateral and medial cords

Question 12

what makes up the radial branch?

Answer 12

a branch of the posterior cord

Question 13

what makes up the ulnar branch?

Answer 13

a branch of the medial cord

Question 14

what are the nerves of the supraclavicular part of the branchial plexus?

Answer 14

dorsal scapular
long thoracic
suprscapular
nerve to the subclavis

Question 15

dorsal scapular innervation and what spinal nerve makes it?

Answer 15

C5 and innervates the levator scapulae and both rhomboid major and minor

Question 16

long thoracic innervation and spinal nerve make up?

Answer 16

innervates the serratus anterior

made of C5, C6, C7

Question 17

nerve to subclavius innervation and spinal nerve make up?

Answer 17

C5 and C6

innervates subclavius muscle

Question 18

suprscapular nerve innervation and spinal nerve make up?

Answer 18

C4-C6

innervates the supraspinatus and infraspinatus muscles

Question 19

what are the nerves of the infraclavicular part of the brachial plexus?

Answer 19

branches of the cords

Question 20

what branches off the lateral cord?

Answer 20

musculocutaneous nerve
lateral pectoral nerve
median nerve

Question 21

what branches off the posterior cord?

Answer 21

radial nerve
axillary nerve
upper subscapular nerve
lower subscapular nerve 
thoracodorsal nerve

Question 22

what branches off the medial cord?

Answer 22

median nerve
ulnar nerve
medial pectoral nerve
medial brachial cutaneous nerve
medial antebrachial cutaneous nerve

Question 23

what are the short branches of the infraclavicular brachial plexus?

Answer 23

uppper and lower subscapular nerves
thoracodorsal
medial and lateral pectoral nerves

Question 24

what are the long branches of the infraclavicular brachial plexus?

Answer 24

musculocutaneous 
radial 
axillary
median
ulnar

Question 25

what long branch is responsible for flexion of arm(bicept)

Answer 25

musculocutaneous

Question 26

what long branch is responsible for flexion of wrists and fingers?

Answer 26

median and ulnar

Question 27

what long branch is responsible for extension of wrists and fingers?

Answer 27

radial

Question 28

what long branch innervates the deltoid?

Answer 28

axillary

Question 29

innervation of the thoracodorsal nerve?

Answer 29

latissimus dorsi

Question 30

innervation upper and lower subscapular nerves

Answer 30

``` subscapularis both teres major (upper only) ```

Question 31

lateral pectoral innervation

Answer 31

pec major

Question 32

medial pectoral innervation

Answer 32

pec major and minor