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Scalene muscles - Wikipedia
The scalene muscles are a group of three muscles on each side of the neck, identified as the anterior, the middle, and the posterior. They are innervated by the third to the eighth cervical spinal nerves (C3-C8).

Scalene muscles: Innervation, function, action, location | Kenhub
The scalene muscles are the three muscles found on each side of the neck, spanning between the transverse processes of the cervical vertebrae and the upper two ribs. Namely, these muscles are the scalenus anterior (anterior scalene), scalenus medius (middle scalene) and scalenus posterior (posterior scalene).

Why the Scalene Muscles Get Tight - Verywell Health
The scalene muscles are accessory breathing muscles that help you inhale. They all contract when you breathe in, opening space for the lungs to expand in the thorax by lifting the top ribs. When you have respiratory issues (for example, asthma ) your scalenes may have to work extra hard.

The Scalene Muscles - Attachments - TeachMeAnatomy
The scalene muscles are three paired muscles (anterior, middle and posterior) 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.

Scalene - Physiopedia
Scalene are a group of three pairs of muscles in the lateral neck: scalenus anterior, scalenus medius and scalenus posterior. Sometimes a fourth muscle, the scalenus minimus is present behind the lower portion of the scalenus anterior.

Anatomy, Head and Neck, Scalenus Muscle - StatPearls - NCBI ...
The scalene muscles are deep and positioned laterally to the cervical tract. Their innervation is complex, as both the brachial plexus and the cervical plexus are involved in their function. They are multi-articular muscles, and their actions are just as complex and vital.

Learn Muscle Anatomy: Scalene Muscles - Visible Body
Feel your neck growing tight from staring at your computer screen all day? Read on to learn about your scalene muscles and the lateral flexion of the neck!