Logan Steele
The neck muscles are a complex musculoskeletal system that connects the skull to the torso. They are responsible for a wide range of movements, from chewing and swallowing to rotating the head and moving it in various directions. Neck muscles are divided into three main groups: anterior (front), lateral (side), and posterior (back). These groups are further divided into subgroups based on their specific functions and locations. For example, the anterior group includes the superficial muscles, which help move the mouth and lower face, while the posterior group includes the suboccipital muscles, which aid in head rotation and neck extension. Neck muscles work in conjunction with tendons and ligaments to provide support and mobility to the neck and head, contributing to our overall stability and range of motion.
| Characteristics | Values |
|---|---|
| Location | Front, sides, and back of the neck |
| Base | Connects the base of the skull to the torso |
| Function | Support the head and help with various movements like chewing, swallowing, and breathing |
| Type of Muscles | Skeletal |
| Control | Voluntary |
| Categories | Anterior (front), lateral (side), and posterior (back) |
| Anterior Subcategories | Superficial, suprahyoid, infrahyoid, and scalene muscles |
| Posterior Subcategories | Superficial, suboccipital, and transversospinalis |
| Number of Muscles | 20 |
| Common Muscle Names | Sternocleidomastoid, trapezius, levator scapulae, scalenes, deep cervical flexors, erector spinae, and suboccipitals |
| Injury | Neck muscle strains, whiplash, and polymyalgia rheumatica are common issues |
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What You'll Learn
- Neck muscles support the head and enable movement
- There are three main groups of neck muscles: anterior, lateral, and posterior
- Anterior neck muscles help with speaking, swallowing, and moving the lower face
- Posterior neck muscles help with head extension and rotation
- Neck muscle injuries are usually not serious, but can be painful
Neck muscles support the head and enable movement
The neck is a complex structure of bones, muscles, nerves, blood vessels, and connective tissues. Neck muscles are part of a musculoskeletal system that connects the base of the skull to the torso. These muscles support the head and enable movement.
There are 20 neck muscles, which can be divided into three main groups based on their position in the neck: anterior (front), lateral (side), and posterior (back). These muscles work with tendons and ligaments to support and move the neck and head. Tendons are connective tissues that attach muscles to bones, while ligaments attach bones to other bones.
Anterior neck muscles help with the movement of the mouth, lower face, and front of the neck. They also help angle the neck downward and rotate the neck. Suprahyoid muscles, which are located superior to the hyoid bone, move the hyoid bone when swallowing or speaking. They also control the hyoid bone when moving the jaw or mouth. Infrahyoid muscles, located inferior to the hyoid bone, move the hyoid bone and the larynx up and down.
Posterior neck muscles are responsible for extending the neck. The superficial muscles in this group help bend the neck laterally and bilaterally. The suboccipital muscles help rotate the head and bend the neck. The transversospinalis muscles help move the head forward and backward, as well as tilt it from side to side. They also help stabilize the spine.
Neck muscles are skeletal muscles, which means they are attached to bones by tendons. They are also voluntary muscles, meaning we can control how they move and work. These muscles contain fibres that contract, allowing us to perform various movements.
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There are three main groups of neck muscles: anterior, lateral, and posterior
The neck is a complex structure of bones, muscles, nerves, blood vessels, and connective tissues. Neck muscles are part of a musculoskeletal system that connects the base of the skull to the torso. There are three main groups of neck muscles: anterior (front), lateral (side), and posterior (back).
The anterior neck muscles are divided into four regions: superficial, suprahyoid, infrahyoid, and scalene muscles. The superficial muscles are some of the largest in the neck and include the platysma and sternocleidomastoid. The suprahyoid muscles are located superior to the hyoid bone and include the digastric, mylohyoid, geniohyoid, and stylohyoid. They move the hyoid bone when swallowing and speaking. The infrahyoid muscles are located inferior to the hyoid bone and consist of the sternohyoid, omohyoid, sternothyroid, and thyrohyoid. They move the larynx up and down. The scalenes are another muscle group in the anterior neck that helps rotate the neck and pull the head back.
The lateral neck muscles consist of three pairs of scalene muscles: anterior, middle, and posterior. They connect the cervical spine to the top of the rib cage. The anterior and middle scalenes attach to the first rib, while the posterior scalene attaches to the second rib. These muscles help with neck flexion and side bending.
The posterior neck muscles are also grouped into three types: superficial, suboccipital, and transversospinalis. The superficial muscles are strap-like muscles that help extend and rotate the head. The suboccipital muscles are below the occipital bone at the base of the skull and help extend the head in different directions. The transversospinalis muscles help move the head and neck forward and backward, tilt the head side to side, and stabilize the spine.
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Anterior neck muscles help with speaking, swallowing, and moving the lower face
The neck muscles are part of a complex musculoskeletal system that connects the base of the skull to the torso. These muscles support and stabilise the head, neck, and the upper part of the spine. They also help with a variety of movements, such as moving the head in different directions, chewing, swallowing, and breathing.
The neck muscles can be categorised into three main groups based on their position in the neck: anterior (front), lateral (side), and posterior (back). Anterior neck muscles are further divided into four subgroups: superficial, suprahyoid, infrahyoid, and scalene muscles.
The superficial muscles are some of the largest muscles in the neck. They include the platysma and sternocleidomastoid. The platysma is a sheet-like muscle that lies within the subcutaneous tissue of the anterior neck. It originates from the skin and fascia overlying the clavicle and passes superiorly along the neck, inserting into the mandible, skin of the lower face, lower lip, and the corners of the mouth. Due to its direct attachment to the skin of the lower face, the platysma functions as a muscle of facial expression.
The suprahyoid muscles are four muscles located superior to the hyoid bone, a small bone at the top of the neck, just below the jawline. They connect the hyoid bone to the mandible and the base of the skull, forming the floor of the oral cavity. These muscles include the digastric, mylohyoid, geniohyoid, and stylohyoid. The suprahyoid muscles move the hyoid bone and coordinate the movements of the floor of the mouth and the hyoid bone during swallowing and vocalisation.
The infrahyoid muscles are four muscles located inferior to the hyoid bone, connecting it to the larynx, sternum, and scapula. They include the sternohyoid, omohyoid, sternothyroid, and thyrohyoid. The infrahyoid muscles move the larynx (voice box) up and down, positioning the hyoid bone and moving the thyroid cartilage of the larynx during vocalisation, swallowing, and mastication.
The scalene muscles move the first two ribs up and down to facilitate inhalation. They also help move the head and stabilise the bones in the neck (cervical spine).
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Posterior neck muscles help with head extension and rotation
The neck muscles are a complex musculoskeletal system that connects the base of the skull to the torso. They are responsible for a range of movements, including chewing, swallowing, breathing, and moving the head. The neck muscles can be categorized into three main groups based on their position: anterior (front), lateral (side), and posterior (back).
The posterior neck muscles are located at the back of the neck and play a crucial role in head extension and rotation. They can be further subdivided into three groups: superficial, deep, and deepest.
The superficial muscles are strap-like muscles that help extend and rotate the head. They include the trapezius and the two splenius muscles (capitis and cervicis). When contracting unilaterally, the trapezius and splenius muscles produce lateral flexion and contralateral rotation of the head. When contracting bilaterally, they facilitate the extension of the head.
The deep layer of posterior neck muscles consists of the transversospinales muscles of the cervical region, including the semispinalis capitis, semispinalis cervicis, and multifidus cervicis. These muscles help move the head forward and backward, as well as tilt it from side to side. Additionally, they provide stability to the cervical, thoracic, and lumbar regions of the spine.
The deepest layer of posterior neck muscles includes the suboccipital muscles, such as the rectus capitis posterior major, rectus capitis posterior minor, obliquus capitis superior, and obliquus capitis inferior. These muscles enable head extension and lateral flexion, as well as head rotation. They also contribute to maintaining posture.
In summary, the posterior neck muscles are essential for head extension and rotation, allowing us to move our heads in different directions. They work in conjunction with other muscle groups in the neck to provide support, stability, and a wide range of motion.
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Neck muscle injuries are usually not serious, but can be painful
The neck is a complex musculoskeletal system that connects the base of the skull to the torso. Neck muscles are present in three main groups: anterior (front), lateral (side), and posterior (back). These muscles are responsible for the movement of the head in all directions, including chewing, swallowing, and breathing.
Neck muscle injuries, such as strains, are usually not serious and can be treated conservatively with pain medication, exercise, and stress management. However, they can be painful and cause stiffness. The pain may range from mild and achy to sharp and debilitating. In most cases, the symptoms of a neck strain will go away in a few days to weeks, but complete healing can take a few months.
A neck strain occurs when the fibres in a neck muscle or tendon stretch too far and tear. This can happen when the neck is bent or rotated abnormally, such as in a car accident or a fall. It can also be caused by poor posture, such as hunching over a computer or phone, or sleeping in a position that does not support the cervical spine.
It is important to see a doctor after any neck injury, even if you feel fine, as symptoms may not appear until hours later or the next day. A doctor will be able to evaluate your condition and rule out more serious causes of neck pain, such as pressure on the spinal cord, myelopathy, infection, or cancer. They may recommend imaging tests such as X-rays or MRIs to check for underlying issues.
To relieve neck pain and improve your range of motion, your healthcare provider may suggest neck exercises and stress reduction techniques such as mindfulness, meditation, and breathing exercises. They may also recommend over-the-counter pain relievers such as aspirin, acetaminophen, ibuprofen, or naproxen to reduce pain and swelling.
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Frequently asked questions
Neck muscles are part of a complex musculoskeletal system that connects the base of your skull to your torso. They are made up of skeletal muscles, which are attached to bones by tendons.
Neck muscles are located at the front, sides and back of your neck. From the back, they begin just beneath the base of your skull and extend down near the middle of your back, around your shoulder blades. From the front, they begin at your jaw and extend to your collarbone.
There are three main categories of neck muscles: anterior (front), lateral (side) and posterior (back). These can be further divided into subgroups based on their specific location and function. For example, the anterior group includes superficial, suprahyoid and infrahyoid muscles, while the posterior group includes superficial, suboccipital and transversospinalis muscles.
Neck muscles support your head and enable you to perform a variety of movements, such as rotating and tilting your head, chewing, swallowing and speaking. They also assist with breathing and help protect the fragile structures within your neck.
