Brachial Plexus Anatomy Quiz

What is the primary function of the ventral rami in the brachial plexus?

• Sensory input

• Motor output

• Blood supply

• Hormonal regulation

Which mnemonic device helps remember the sequence of roots, trunks, divisions, cords, and branches in the brachial plexus?

• Robert Taylor Drinks Cold Beer

• Please Excuse My Dear Aunt Sally

• Every Good Boy Deserves Fudge

• My Very Educated Mother Just Served Us Noodles

What are the first two steps in drawing the brachial plexus?

• Draw the Big M and label the nerves

• Combine the top two and bottom two roots to form trunks

• List all 16 branches of the brachial plexus

• Identify the axillary artery and draw cords

What does the 'Big M' in the brachial plexus represent?

• The location of the axillary artery

• The division of the dorsal rami

• The formation of the median nerve

• The structure of the spinal cord

Which nerve is NOT part of the 'Big M' formation?

• Musculocutaneous nerve

• Median nerve

• Ulnar nerve

• Axillary nerve

How many groups of three nerves are there in the additional branches of the brachial plexus?

• Five

• Three

• Two

• Four

Which nerve is formed by the first three roots of the brachial plexus?

• Dorsal scapular nerve

• Long thoracic nerve

• Suprascapular nerve

• Lateral pectoral nerve

What is the last nerve to be added in the brachial plexus drawing sequence?

• Axillary nerve

• Medial pectoral nerve

• Thoracodorsal nerve

• Nerve to subclavius

Which nerve is part of the third group of three on the posterior cord?

• Nerve to subclavius

• Lateral pectoral nerve

• Medial brachial cutaneous nerve

• Upper subscapular nerve

What is the total number of branches in the brachial plexus as discussed in the video?

• 12

• 18

• 16

• 14