what is the origin of the trapezius muscle

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What is the insertion of the trapezius muscle?

Insertion. The muscle inserts on the lateral third of clavicle, acromion, and spine of scapula.

Where does the trapezius start and end?

The trapezius is a large paired trapezoid-shaped surface muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae of the spine and laterally to the spine of the scapula.

What is the origin of the lower trapezius?

The inferior fibers originate from the spinous processes of the T4-T12 vertebrae and their respective supraspinous ligaments. These fibers course superiorly and laterally towards their insertion point and hence, represent the ascending part of the trapezius.

What is the origin insertion and action?

A skeletal muscle attaches to bone (or sometimes other muscles or tissues) at two or more places. If the place is a bone that remains immobile for an action, the attachment is called an origin. If the place is on the bone that moves during the action, the attachment is called an insertion.

What nerve controls the trapezius muscle?

The muscles innervated directly by the XI nerve are the trapezius and the sternocleidomastoid, in addition to the laryngeal musculature (in collaboration with the vagus nerve), such as the palatal, pharyngeal, laryngeal muscles.

What is the trap muscle actually called?

The trapeziusThe trapezius is a muscle that starts at the base of your neck, goes across your shoulders and extends to the middle of your back. The trapezius (traps muscle) helps you move your head, neck, arms, shoulders and torso. It also stabilizes your spine and helps with posture.

What is the function of the trapezius muscle?

It starts at the back of your head and neck, extends across your shoulders, and down the middle of your back, forming a trapezoid. Also known as traps, the trapezius muscles play an important role in posture. They move the shoulders, lift arms out to the side, and protect the neck and spine.

What is the origin and insertion of the supraspinatus muscle?

The supraspinatus muscle originates from the supraspinous fossa, which is a concave surface at the top of the scapula. From the supraspinous fossa of the scapula, the supraspinatus muscle then extends laterally (outward) and inserts onto the humerus, which is the long bone that makes up the upper arm.

Where is trapezius pain located?

If you have a strained or “pulled” trapezius muscle, you may feel mild or severe pain in your upper back area, shoulders, or neck.

Where is the trapezius bone located?

The trapezium bone is one of eight small bones which make up the wrist joint. The trapezium is the last bone in the row of wrist bones, located beneath the thumb joint.

Where are the trapezius traps located?

The trapezius is a muscle that starts at the base of your neck, goes across your shoulders and extends to the middle of your back. The trapezius (traps muscle) helps you move your head, neck, arms, shoulders and torso. It also stabilizes your spine and helps with posture.

What part of the body does the trapezius move?

Also known as traps, the trapezius muscles play an important role in posture. They move the shoulders, lift arms out to the side, and protect the neck and spine. You use them when you shrug or pull your shoulders back.

What is the action of the trapezius muscle?

The trapezius functions to produce several actions, which include scapular depression, scapular retraction, scapular elevation, neck extension, lat...

How does the trapezius attach to the clavicle?

The trapezius attaches to the outer third of the clavicle which is another name for the collar bone. The tendon of the trapezius attaches to this b...

Where is the trapezius found?

The trapezius is a large, broad, triangular-shaped muscle that is located on both sides of the spinal column of the neck and upper back.

Which is the insertion of the trapezius?

The trapezius inserts onto multiple locations in the body, which include the clavicle (collar bone), acromion (bony projection of the shoulder blad...

What is the trapezius ridge?

The trapezius ridge is the ridge or line of muscle that runs from the neck to the shoulder, and it is part of the descending or superior portion of...

Where does the trapezius originate?

The trapezius muscle originates from the occipital bone, which is located at the back base of the skull. On the occipital bone , the trapezius muscle originates from the superior nuchal line, the external occipital protuberance, and the nuchal ligament.

What is the trapezius muscle?

He is a Registered Dietitian (RD) and a Certified Exercise Physiologist (EP-C) The trapezius muscle is one of the largest muscle of the back, a muscle where many people hold their stress. This lesson will provide all types of information about this muscle, including its origin, insertion, and action. Create an account.

What muscle inserts on the spine and acromion of the scapula?

The trapezius muscle inserts on the spine and acromion of the scapula. The trapezius muscle causes several actions of the scapula and neck. These actions include: The trapezius muscle allows a person to bend their neck backwards, such as when they look up. The trapezius muscle is one of the largest muscles in the back.

What are the main actions of the trapezius muscle?

The main actions of the trapezius muscle include: Scapular elevation. Scapular retraction. Scapular depression. Neck extension. Medical Disclaimer: The information on this site is for your information only and is not a substitute for professional medical advice. To unlock this lesson you must be a Study.com Member.

Where is the trapezius muscle located?

The C stands for cervical vertebrae which are located in the neck, while T stands for thoracic vertebrae which are located in upper and middle regions of the back. The trapezius muscle also originates from the C7-T12 vertebrae.

Which muscle is responsible for bending the neck backwards?

The trapezius muscle allows a person to bend their neck backwards, such as when they look up. The trapezius muscle is one of the largest muscles in the back. This muscle originates from the superior nuchal line, the external occipital protuberance, and the nuchal ligament of the occipital bone.

Which muscle attaches to the clavicle?

The trapezius muscle inserts or attaches to the clavicle (collarbone) and the scapula (shoulder blade) on each side of the body. Specifically, this muscle attaches to the outer portion of the clavicle and the acromion and spine of the scapula.

What is the muscle that turns the head and neck?

It links to the dorsal vertebrae of the spine, scapulae, clavicles, and ribs. This muscle is named for its trapezoid shape. The trapezius muscle is a postural and active movement muscle, used to tilt and turn the head and neck, shrug, steady the shoulders, and twist the arms.

Which muscle is the widest?

Along with the latissimus dorsi, rhomboids, and levator scapula, the trapezius muscle is one of the widest back muscles. Broad muscle bands cross the back, providing upright posture support. The trapezius and semispinalis capitis muscles create a muscle column along the back portion of the neck.

Which muscle supports the arms?

The descending part of the trapezius muscle supports the arms. The transverse part retracts the scapulae, and the ascending part medially rotates or depresses the scapulae. Last medically reviewed on January 20, 2018.

Where is the trapezius located?

The upper trapezius arises from your occipital bone in the back of your skull and the nuchal line in the back of your neck. The muscle also has attachments to the spinous processes of cervical level one through six via the ligamentum nuchae. Attachments of the lower fibers ...

What muscles are involved in the trapezius?

The trapezius muscle is a large muscle bundle that extends from the back of your head and neck to your shoulder. It is composed of three parts: 1 Upper trapezius 2 Middle trapezius 3 Lower trapezius

What muscle is responsible for pulling your shoulders up?

The trapezius muscle is a large muscle bundle that extends from the back of your head and neck to your shoulder. It is composed of three parts: The trapezius, commonly referred to as the traps, are responsible for pulling your shoulders up, as in shrugging, and pulling your shoulders back during scapular retraction.

What nerve innervates the trapezius muscle?

Nerve innervation to the trapezius muscle is interesting, as it is served by a cranial nerve. This nerve called the spinal accessory nerve, or cranial nerve XI, arises from your brain stem and travels from your skull down to the trapezius muscle, providing motor input. Sunlight19 / Getty Images.

Why is my upper trapezius tight?

The result may well be a pain, limited movement and a loss of neck flexibility . Together with the lower traps, the upper trapezius also helps rotate your shoulder blade upward.

What are the parts of the trapezius muscle?

Anatomy. As mentioned above, the trapezius muscle is divided into 3 areas: The upper fibers, the middle fibers (called the middle trapezius), and the lower fibers (called the lower traps). 1  The division into the separate, distinct parts of this muscle is about functionality. In other words, each area does something different.

Which muscle acts as both a posture stabilizer and a movement muscle?

The trapezius muscle acts as both a posture stabilizer and a movement muscle. 1 

What is the name of the muscle that covers the upper back, shoulders, and neck?

Trapezius Muscle: The trapezius is a broad, flat and triangular muscle. Trapezius a large muscle consisting of three parts covering upper back, shoulders, and neck. The muscles on each side form a trapezoid shape.

Which vertebrae are involved in the lower part spinous process?

Lower part- spinous processes of middle and lower thoracic vertebrae. Insertion: External occipital protuberance, medial superior nuchal line, nuchal ligament, posterior border of the lateral third of clavicle, acromion process and spine of the scapula.

Where is the Trapezius Muscle Located?

Trapezius muscle location can be felt through the skin. By imagining a diamond shape, we can picture it starting at the back of the neck, widening at the shoulder, then narrowing as it runs toward the lower ribs .

Why is the trapezius muscle called the trapezoid?

The trapezius muscle is so named because of its near trapezoid (diamond) shape. It can be felt just under the skin and is divided into the descending, ascending, and middle parts. As a skeletal muscle, it depends on nerve impulses that cross the neuromuscular junction of the connecting nerve and the membrane that covers groups of muscle fibers.

What is the spine of the scapula?

The spine of the scapula is a ridge that runs diagonally on the outer edge of the shoulder blades, providing an insertion point for middle trapezius muscle fibers. The acromion is a bony protuberance of the scapula that articulates with the clavicle, forming the acromioclavicular joint.

How long does it take to recover from a Trapezius muscle injury?

If the muscle completely tears into two pieces, it is a Grade 3 injury. As the upper back, shoulders, and neck are crucial for daily activity, it can take up to three weeks to recover from a Grade 1 injury and months for more serious trauma.

What muscles extend the head?

Superficial muscles that lie under the trapezius. At the neck, the descending trapezius and cervical erector spinae muscles extend the head. As a group, these are referred to as the cervical extensor muscles.

What muscles do trapezius work?

The trapezius muscle does not work alone. It is one of a group of superficial back muscles that help us to extend and flex the upper back. These are: 1 Trapezius 2 Latissimus dorsi 3 Rhomboid major 4 Rhomboid minor 5 Levator scapula 6 Serratus anterior

Where are the middle fibers of the trapezius muscle located?

The middle fibers of the trapezius muscle function by way of horizontal fibers that run from the spinous processes of the cervical vertebrae and the first three thoracic vertebrae. They make their way to the middle of the shoulder blade acromion and the superior crest of the scapular spine (see below image). Blood is provided by the superficial ...

What is the trapezius?

The trapezius is a broad, flat, superficial muscle extending from the cervical to thoracic region on the posterior aspect of the neck and trunk. The muscle is divided into three parts: descending (superior), ascending (inferior), and middle. The muscle contributes to scapulohumeral rhythm through attachments on the clavicle and scapula, and to head balance through muscular control of the cervical spine.

How to relieve pain from trapezius muscle?

Sit upright in a chair and make sure that your posture is correct. These stretches can be done in repetitions of 15-20 every hour to decrease trapezius muscle pain. Begin by rolling the shoulders back so that the shoulder blades feel like they are being pinched together. Then raise your shoulders up towards the ceiling and lower them down gently. You can then bend your neck from side to side by tilting your head towards your shoulder and counting to 3, then repeating in each direction.

Which muscles contribute to the extension and side flexion of the axial skeleton?

The superficial muscles of the back (trapezius, latissimus dorsi, rhomboids, levator scapula, serratus anterior) contribute to extension and side flexion of the axial skeleton. The cervical extensor muscles (descending trapezius and cervical erector spinae) counterbalance the pull of gravity on the head, as the head tends to be pulled into flexion due to its anterior centre of gravity

Which muscle is used to tilt and turn the head and neck, shrug, steady the shoulders, and twist the arms?

The trapezius muscle is a postural and active movement muscle, used to tilt and turn the head and neck, shrug, steady the shoulders, and twist the arms. The trapezius elevates, depresses, rotates, and retracts the scapula, or shoulder blade.

Where are the inserts on the clavicle?

The muscle inserts on the lateral third of clavicle, acromion, and spine of scapula.

Which part of the thoracic spine assists with ipsilateral side flexion and contralateral axial rotation?

Middle part: assists with ipsilateral side flexion and contralateral axial rotation of upper thoracic region