36 Questions
Which muscles are located in the lateral aspect of the neck?
Scalene muscles
Which muscles are located in the lateral aspect of the neck?
Scalene muscles
What is the function of the scalene muscles?
Accessory muscles of respiration
Which triangle of the neck do the scalene muscles form part of the floor?
Posterior triangle
Which muscle is located deep to the sternocleidomastoid on the lateral aspect of the neck?
Anterior scalene muscle
Which triangle of the neck do the scalene muscles form part of?
Posterior triangle
What is the function of the scalene muscles?
Flexion at the neck
Which is the largest and longest of the three scalene muscles?
Middle scalene muscle
What is the function of the scalene muscles?
Accessory muscles of respiration
Which scalene muscle is located deep to the sternocleidomastoid on the lateral aspect of the neck?
Anterior scalene muscle
Which scalene muscle is located deep to the sternocleidomastoid on the lateral aspect of the neck?
Anterior scalene
Which muscle is the smallest and deepest of the scalene muscles?
Posterior scalene muscle
Which is the largest and longest of the three scalene muscles?
Middle scalene
Which structures pass between the anterior and middle scalene muscles?
Brachial plexus and subclavian artery
Which scalene muscle is the largest and longest of the three scalene muscles?
Middle scalene muscle
Which scalene muscle is the smallest and deepest of the scalene muscles?
Posterior scalene muscle
Which is the smallest and deepest of the scalene muscles?
Posterior scalene
Which structures pass anteriorly to the anterior scalene?
Subclavian vein and phrenic nerve
What is an interscalene block?
A block of the brachial plexus
Which structures pass between the anterior and middle scalene muscles?
Brachial plexus and subclavian artery
What passes between the anterior and middle scalene muscles?
Brachial plexus and subclavian artery
Which muscles form part of the floor of the posterior triangle of the neck?
Scalene muscles
What passes anteriorly to the anterior scalene muscle?
Subclavian vein
Which structures pass anteriorly to the anterior scalene?
Subclavian vein and phrenic nerve
What is the main function of the scalene muscles in patients with respiratory distress?
To aid with breathing
What is the function of the scalene muscles in patients with respiratory distress?
They act as accessory muscles of respiration
What is the function of the scalene muscles in patients with respiratory distress?
Aid with breathing
What is an interscalene block?
Infiltration of local anaesthetic between the anterior and middle scalene muscles
What is an interscalene block?
A type of nerve block for the brachial plexus
Which muscle is located deepest to the sternocleidomastoid on the lateral aspect of the neck?
Posterior scalene muscle
Which muscle is the most medial of the three scalene muscles?
Anterior scalene
Which muscle is not part of the scalene group?
Trapezius muscle
Which artery passes between the anterior and middle scalene muscles?
Subclavian artery
Which muscle group is responsible for flexion and rotation of the neck?
Sternocleidomastoid muscles
Which muscle is the most lateral of the three scalene muscles?
Posterior scalene
Which nerve passes anteriorly to the anterior scalene?
Phrenic nerve
Study Notes
- The scalene muscles are three paired muscles located in the lateral aspect of the neck.
- They form part of the floor of the posterior triangle of the neck.
- The scalenes act as accessory muscles of respiration and perform flexion at the neck.
- The anterior scalene muscle is located deep to the sternocleidomastoid on the lateral aspect of the neck.
- The middle scalene is the largest and longest of the three scalene muscles.
- The posterior scalene is the smallest and deepest of the scalene muscles.
- The brachial plexus and subclavian artery pass between the anterior and middle scalene muscles.
- The subclavian vein and phrenic nerve pass anteriorly to the anterior scalene.
- The scalene muscles are used as 'accessory muscles of respiration' to aid with breathing in patients with respiratory distress.
- The brachial plexus can be infiltrated with local anaesthetic between the anterior and middle scalene muscles for an interscalene block.
Do you know your scalene muscles? Test your knowledge with our quiz! Learn about the anatomy and function of the anterior, middle, and posterior scalene muscles, as well as their role as accessory muscles of respiration. Discover how the brachial plexus and subclavian artery pass between the scalene muscles and how they can be used for an interscalene block. Take the quiz now and become a scalene muscle expert!
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