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Questions and Answers
Which nerves are found in the lateral neck region?
Which nerves are found in the lateral neck region?
What forms the anterior boundary of the lateral neck region?
What forms the anterior boundary of the lateral neck region?
What forms the posterior boundary of the lateral neck region?
What forms the posterior boundary of the lateral neck region?
What forms the inferior boundary of the lateral neck region?
What forms the inferior boundary of the lateral neck region?
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Which vessels are found in the lateral neck region?
Which vessels are found in the lateral neck region?
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Which muscles form the floor of the lateral neck region?
Which muscles form the floor of the lateral neck region?
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Which nerves arise from the cervical plexus in the lateral neck region?
Which nerves arise from the cervical plexus in the lateral neck region?
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Which vessels pass through the lateral neck region on route to the axilla and upper limbs?
Which vessels pass through the lateral neck region on route to the axilla and upper limbs?
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Which muscles form the anterior boundary of the lateral neck region?
Which muscles form the anterior boundary of the lateral neck region?
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Which muscles form the posterior boundary of the lateral neck region?
Which muscles form the posterior boundary of the lateral neck region?
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Study Notes
Lateral Neck Region Nerves
- Important nerves include the accessory nerve (CN XI), which innervates the sternocleidomastoid and trapezius muscles.
- Branches of the cervical plexus, such as the lesser occipital, great auricular, transverse cervical, and supraclavicular nerves, are prominent in this area.
Anterior Boundary of Lateral Neck Region
- The anterior border is formed by the sternocleidomastoid muscle, which divides the neck into anterior and lateral compartments.
Posterior Boundary of Lateral Neck Region
- The posterior boundary is defined by the trapezius muscle, which extends from the occipital bone down to the spine of the scapula.
Inferior Boundary of Lateral Neck Region
- The inferior boundary is marked by the clavicle, which separates the lateral neck from the upper thorax.
Vessels in the Lateral Neck Region
- Major vessels include the external jugular vein and the subclavian artery, which supplies blood to the shoulder and upper limb.
- The common carotid artery also plays a key role, bifurcating into the internal and external carotid arteries.
Muscles Forming the Floor of the Lateral Neck Region
- The floor is formed by deep muscles including the splenius capitis, levator scapulae, and scalene muscles (anterior, middle, and posterior).
Cervical Plexus Nerves in Lateral Neck Region
- The cervical plexus contributes sensory and motor nerves, notably supplying the skin and muscles of the neck and shoulder areas.
Vessels Passing Through to Axilla and Upper Limbs
- The subclavian artery and vein traverse through the lateral neck region en route to their respective destinations in the axilla and upper limbs.
Anterior Boundary Muscles
- The anterior boundary is primarily made up of the sternocleidomastoid muscle, which provides crucial support for head movement.
Posterior Boundary Muscles
- The trapezius muscle forms the posterior boundary and is significant for shoulder elevation and neck support.
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Description
Test your knowledge on the lateral neck region, including the cervical plexus, brachial plexus, and subclavian vessels. Learn about the important nerves and vessels that pass through this area on their way to the axilla and upper limbs.
