Podcast
Questions and Answers
The axillary artery starts at the outer border of the ______.
The axillary artery starts at the outer border of the ______.
first rib
The second part of the axillary artery is located behind the ______.
The second part of the axillary artery is located behind the ______.
Pectoralis minor
The three cords of the brachial plexus enter the axilla above the ______ part of the axillary artery.
The three cords of the brachial plexus enter the axilla above the ______ part of the axillary artery.
first
The cords of the brachial plexus are for the most part located in the ______.
The cords of the brachial plexus are for the most part located in the ______.
The cords surround the ______ part of the axillary artery, according to their names.
The cords surround the ______ part of the axillary artery, according to their names.
The brachial plexus cords are closely associated with the axillary ______.
The brachial plexus cords are closely associated with the axillary ______.
The ______ cords give off their branches around the third part of the axillary artery.
The ______ cords give off their branches around the third part of the axillary artery.
The axillary artery ends at the lower border of the teres ______.
The axillary artery ends at the lower border of the teres ______.
The three cords of the brachial plexus ______ the second part of the axillary artery.
The three cords of the brachial plexus ______ the second part of the axillary artery.
The cords of the brachial plexus give off branches around the ______ part of the axillary artery.
The cords of the brachial plexus give off branches around the ______ part of the axillary artery.
Which muscles are innervated by the nerve that arises from the lateral cord and also contains fibers from C5, C6, and C7?
Which muscles are innervated by the nerve that arises from the lateral cord and also contains fibers from C5, C6, and C7?
Which of the following nerves provides cutaneous innervation to the medial side of the forearm?
Which of the following nerves provides cutaneous innervation to the medial side of the forearm?
In the majority of cases, which nerve receives a communicating branch from the lateral cord?
In the majority of cases, which nerve receives a communicating branch from the lateral cord?
Which cord of the brachial plexus gives rise to the upper and lower subscapular nerves?
Which cord of the brachial plexus gives rise to the upper and lower subscapular nerves?
Which of the following nerves that originate from the brachial plexus innervates the teres major muscle?
Which of the following nerves that originate from the brachial plexus innervates the teres major muscle?
A patient presents with weakness in adduction, internal rotation, and extension of the arm. Damage to which nerve is most likely?
A patient presents with weakness in adduction, internal rotation, and extension of the arm. Damage to which nerve is most likely?
A patient has lost sensation on the medial side of their forearm, which nerve is most likely damaged?
A patient has lost sensation on the medial side of their forearm, which nerve is most likely damaged?
What spinal nerve roots primarily contribute to the formation of the lateral cord of the brachial plexus?
What spinal nerve roots primarily contribute to the formation of the lateral cord of the brachial plexus?
What muscles are innervated by the nerves originating from the posterior cord?
What muscles are innervated by the nerves originating from the posterior cord?
If the lateral cord is damaged, predict which motion would be most affected due to the innervation of the related musculature:
If the lateral cord is damaged, predict which motion would be most affected due to the innervation of the related musculature:
The lateral cord (C5, 6, 7) gives off the lateral ______ nerve which supplies the pectoralis major.
The lateral cord (C5, 6, 7) gives off the lateral ______ nerve which supplies the pectoralis major.
The lateral cord (C5, 6, 7) gives off the ______ nerve which supplies coracobrachialis and biceps.
The lateral cord (C5, 6, 7) gives off the ______ nerve which supplies coracobrachialis and biceps.
The lateral cord (C5, 6, 7) gives off the lateral root of the ______ nerve.
The lateral cord (C5, 6, 7) gives off the lateral root of the ______ nerve.
The medial cord (C8, T1) gives off the medial ______ nerve which supplies pectoralis major.
The medial cord (C8, T1) gives off the medial ______ nerve which supplies pectoralis major.
The medial cord (C8, T1) gives off the medial ______ nerve of the arm which supplies the skin over the front and the medial side of the arm.
The medial cord (C8, T1) gives off the medial ______ nerve of the arm which supplies the skin over the front and the medial side of the arm.
The medial cord (C8, T1) gives off the medial ______ nerve of the forearm which supplies the skin over the lower part of the arm and the medial side of the forearm.
The medial cord (C8, T1) gives off the medial ______ nerve of the forearm which supplies the skin over the lower part of the arm and the medial side of the forearm.
The medial cord (C8, T1) gives off the medial root of the ______ nerve.
The medial cord (C8, T1) gives off the medial root of the ______ nerve.
The medial cord (C8, T1) gives off the ______ nerve, and in 90% of cases, this nerve receives a branch (C6, 7) from the lateral cord.
The medial cord (C8, T1) gives off the ______ nerve, and in 90% of cases, this nerve receives a branch (C6, 7) from the lateral cord.
The posterior cord (C5, 6, 7, 8, T1) gives off the upper ______ nerve (C5, 6), which partly supplies subscapularis.
The posterior cord (C5, 6, 7, 8, T1) gives off the upper ______ nerve (C5, 6), which partly supplies subscapularis.
The posterior cord (C5, 6, 7, 8, T1) gives off the lower ______ nerve (C5, 6), which supplies subscapularis and teres major.
The posterior cord (C5, 6, 7, 8, T1) gives off the lower ______ nerve (C5, 6), which supplies subscapularis and teres major.
A patient has difficulty with adduction, extension, and internal rotation of the arm. Which nerve is MOST likely affected?
A patient has difficulty with adduction, extension, and internal rotation of the arm. Which nerve is MOST likely affected?
Which nerve originating from the brachial plexus is responsible for innervating the latissimus dorsi muscle?
Which nerve originating from the brachial plexus is responsible for innervating the latissimus dorsi muscle?
Damage to which nerve would MOST directly impact the ability to perform powerful downward strokes, such as chopping wood?
Damage to which nerve would MOST directly impact the ability to perform powerful downward strokes, such as chopping wood?
Which of the following nerves receives contributions from all of the following spinal nerve roots: C5, C6, C7, C8, and T1?
Which of the following nerves receives contributions from all of the following spinal nerve roots: C5, C6, C7, C8, and T1?
Compared to the axillary nerve, what additional spinal nerve roots contribute to the radial nerve?
Compared to the axillary nerve, what additional spinal nerve roots contribute to the radial nerve?
Assuming no other nerve damage occurred, what combination of arm motions would be MOST weakened following damage to the nerve originating from spinal nerve roots C6, C7, and C8?
Assuming no other nerve damage occurred, what combination of arm motions would be MOST weakened following damage to the nerve originating from spinal nerve roots C6, C7, and C8?
A patient has full function of all muscles of the arm except for the latissimus dorsi. Which nerve is MOST likely injured?
A patient has full function of all muscles of the arm except for the latissimus dorsi. Which nerve is MOST likely injured?
Which nerve listed arises from the brachial plexus with the LEAST number of spinal nerve roots represented?
Which nerve listed arises from the brachial plexus with the LEAST number of spinal nerve roots represented?
A surgeon is performing a procedure in the axilla and needs to identify the nerve responsible for latissimus dorsi innervation. Which of the following is the MOST appropriate target?
A surgeon is performing a procedure in the axilla and needs to identify the nerve responsible for latissimus dorsi innervation. Which of the following is the MOST appropriate target?
If a patient can abduct their arm from 0-15 degrees but loses the ability to do so past 15 degrees, which nerve is MOST likely intact?
If a patient can abduct their arm from 0-15 degrees but loses the ability to do so past 15 degrees, which nerve is MOST likely intact?
Flashcards
Axillary artery
Axillary artery
The cords of the brachial plexus are closely associated with this artery in the axilla.
Boundaries of the Axillary Artery
Boundaries of the Axillary Artery
Artery that starts at the outer border of the first rib and ends at the lower border of teres major.
Second Part of the Axillary Artery
Second Part of the Axillary Artery
The part of the axillary artery located behind the pectoralis minor muscle.
Lateral pectoral nerve
Lateral pectoral nerve
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Musculocutaneous nerve
Musculocutaneous nerve
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Lateral root of median nerve
Lateral root of median nerve
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Medial pectoral nerve
Medial pectoral nerve
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Medial cutaneous nerve of the arm
Medial cutaneous nerve of the arm
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Medial cutaneous nerve of the forearm
Medial cutaneous nerve of the forearm
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Medial root of the median nerve
Medial root of the median nerve
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Ulnar nerve
Ulnar nerve
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Upper subscapular nerve
Upper subscapular nerve
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Lower subscapular nerve
Lower subscapular nerve
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Thoracodorsal Nerve
Thoracodorsal Nerve
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Radial Nerve
Radial Nerve
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Axillary Nerve
Axillary Nerve
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Capital of France (example flashcard)
Capital of France (example flashcard)
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Study Notes
- The thoracodorsal nerve (C6, 7, 8) supplies the latissimus dorsi muscle
- The radial nerve originates from C5, 6, 7, 8, and T1
- The axillary nerve originates from C5 and C6
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