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The trapezius muscle is a long, flat muscle that runs from the base of the neck to the upper part of the back. It is attached to the spine at the top and the lower back at the bottom. The muscle is used to move the shoulder blades.
The trapezius muscle is narrower in cats than in humans. It is also shorter and thicker. The reason for these differences is that the cat's spine is much shorter and less flexible than the human spine. This means that the cat's trapezius muscle has to work harder to move the shoulder blades.
What is the trapezius muscle?
The trapezius muscle is a large, superficial muscle that extends from the base of the skull to the lower thoracic region of the spine. Its primary function is to stabilize and move the shoulder girdle. The trapezius muscle is divided into three functional regions: the upper, middle, and lower trapezius.
The upper trapezius is responsible for elevating the shoulder girdle and is the most active region of the muscle during shoulder shrugs. The middle trapezius depresses the shoulder girdle and is active during shoulder blades squeeze. The lower trapezius drains blood and lymph from the shoulder girdle and is active during shoulder blade retraction.
The trapezius muscle is innervated by the cervical nerves and the dorsal scapular nerve. It is a mixed muscle, meaning it is composed of both fast and slow twitch muscle fibers. The muscle is mostly used in postural support and movement of the shoulder girdle.
The trapezius muscle is one of the most important muscles in the human body. It is involved in a variety of activities, including posture, movement, and blood and lymph drainage. The muscle is strong and durable, but can be susceptible to injury if not used properly.
What is the function of the trapezius muscle?
The trapezius muscle is a muscle in the human body that is responsible for the movement of the shoulders and the upper back. It is also responsible for stabilizing the spine and neck. The trapezius muscle is attached to the base of the skull and extends down to the middle of the back. It is a triangular shaped muscle that is divided into three sections: the upper, middle, and lower trapezius. The trapezius muscle is used in a variety of activities such as shrugging, reaching, and pulling. It is also used in activities such as swimming and massage.
The trapezius muscle is one of the most important muscles in the human body. It is responsible for the movement of the shoulders and the upper back. The trapezius muscle is also responsible for stabilizing the spine and neck. The trapezius muscle is attached to the base of the skull and extends down to the middle of the back. It is a triangular shaped muscle that is divided into three sections: the upper, middle, and lower trapezius. The trapezius muscle is used in a variety of activities such as shrugging, reaching, and pulling. It is also used in activities such as swimming and massage.
The trapezius muscle is an important muscle in the human body. It is responsible for the movement of the shoulders and the upper back. It is also responsible for stabilizing the spine and neck. The trapezius muscle is attached to the base of the skull and extends down to the middle of the back. It is a triangular shaped muscle that is divided into three sections: the upper, middle, and lower trapezius. The trapezius muscle is used in a variety of activities such as shrugging, reaching, and pulling. It is also used in activities such as swimming and massage.
The function of the trapezius muscle is to provide movement and stability to the shoulders and the upper back. The trapezius muscle is responsible for a wide range of movements, including shrugging, reaching, and pulling. The muscle is also used in activities such as swimming and massage. The trapezius muscle is a large, triangular muscle that is located in the upper back. It originates at the base of the skull and inserts into the middle of the back. The trapezius muscle is divided into three sections: the upper, middle, and lower trapezius. The function of
What is the difference between the human trapezius muscle and the cat's trapezius muscle?
There are several differences between the human trapezius muscle and the cat's trapezius muscle. For one, the human trapezius muscle is much larger than the cat's trapezius muscle. Additionally, the human trapezius muscle is attached to the sternum, while the cat's trapezius muscle is not. Finally, the human trapezius muscle is responsible for moving the shoulder blades, while the cat's trapezius muscle is responsible for moving the shoulder and the foreleg.
What is the structure of the trapezius muscle?
The trapezius muscle is a flat, triangular muscle that extends from the base of the neck to the middle of the upper back. It is the largest muscle in the upper back, and is responsible for moving the shoulder blades. The trapezius muscle has three main sections: the upper trapezius, middle trapezius, and lower trapezius.
The upper trapezius attaches to the base of the skull and the lower neck, and is responsible for shrugging the shoulders. The middle trapezius attaches to the middle of the back and helps to stabilize the shoulder blades. The lower trapezius attaches to the lower back and helps to pull the shoulder blades down and together.
The trapezius muscle is innervated by the spinal accessory nerve. It is one of the few muscles that is not innervated by a branch of the brachial plexus. The trapezius muscle is important in many everyday activities such as holding the head up, shrugging the shoulders, and combing hair.
What is the blood supply to the trapezius muscle?
The trapezius muscle is responsible for moving the shoulder and controlling the scapula. It is supplied by the descending branch of the transverse cervical artery and the upper divisions of the suprascapular and dorsal scapular arteries.
The blood supply to the trapezius muscle is important for its function. The descending branch of the transverse cervical artery provides oxygenated blood to the muscle. The upper divisions of the suprascapular and dorsal scapular arteries provide nutrients and oxygen to the muscle.
The blood supply to the trapezius muscle is important for its function. The muscle is responsible for moving the shoulder and controlling the scapula. The descending branch of the transverse cervical artery provides oxygenated blood to the muscle. The upper divisions of the suprascapular and dorsal scapular arteries provide nutrients and oxygen to the muscle.
The blood supply to the trapezius muscle is important for its function. The muscle is responsible for moving the shoulder and controlling the scapula. The descending branch of the transverse cervical artery provides oxygenated blood to the muscle. The upper divisions of the suprascapular and dorsal scapular arteries provide nutrients and oxygen to the muscle. These nutrients and oxygen are essential for the muscle to function properly.
What are the innervations to the trapezius muscle?
The trapezius muscle is a large, triangular, superficial muscle that extends from the occipital bone to the lower thoracic spine and the scapula. The upper and lower fibres of the muscle are separated by a deep depression, the omohyoid groove. The muscle is innervated by the accessory nerve (cranial nerve XI), and the lower fibres are innervated by the dorsal scapular nerve (cranial nerve V).
The trapezius muscle is one of the 13 extrinsic muscles of the shoulder girdle. It is the most superficial of the extrinsic shoulder muscles, and is easily palpated. The muscle has three main functions: to stabilize the scapula, to elevate the scapula, and to retract the scapula.
The trapezius muscle is innervated by the accessory nerve (cranial nerve XI) and the dorsal scapular nerve (cranial nerve V). The accessory nerve innervates the upper fibres of the muscle, and the dorsal scapular nerve innervates the lower fibres.
The trapezius muscle is a powerful stabilizer of the scapula. It is especially active during overhead activities, such as reaching or throwing. The muscle is also active during activities that require stabilization of the scapula, such as carrying a load on one side of the body.
The trapezius muscle can elevate the scapula, and is the main muscle responsible for doing so. The muscle is also capable of depressing the scapula, but this is not its primary function.
The trapezius muscle is the main muscle responsible for retracting the scapula. It is also capable of depressing the scapula, but this is not its primary function.
The trapezius muscle is a large, triangular, superficial muscle that extends from the occipital bone to the lower thoracic spine and the scapula. The muscle is innervated by the accessory nerve (cranial nerve XI) and the dorsal scapular nerve (cranial nerve V). The trapezius muscle is a powerful stabilizer of the scapula and is the main muscle responsible for elevating and retracting the scapula.
What are the actions of the trapezius muscle?
The trapezius muscle is a large, triangular muscle that extends from the base of the skull to the middle of the back. The trapezius muscle is responsible for moving the shoulders and connecting the upper body to the lower body. The trapezius muscle is divided into three regions: the upper, middle, and lower trapezius.
The upper trapezius originates from the base of the skull and inserts into the acromion process of the shoulder blade. The middle trapezius originates from the spinous processes of the vertebrae and inserts into the medial border of the shoulder blade. The lower trapezius originates from the lowest three or four thoracic vertebrae and inserts into the inferior angle of the shoulder blade.
The trapezius muscle is innervated by the accessory nerve. The trapezius muscle is involved in elevating, depressing, and rotating the shoulders. The trapezius muscle is also involved in extending the head at the neck.
The trapezius muscle is a two-joint muscle that acts on both the shoulder and the neck. The muscle can elevate the shoulder girdle and move the shoulder blade. The middle and lower trapezius can depress the shoulder girdle and rotate the shoulder blade. The trapezius muscle can also extend the head at the neck.
The trapezius muscle is an important muscle for posture and movement of the shoulders and neck. The muscle can become tight and cause pain if it is overworked or injured.
What are the clinical significance of the trapezius muscle?
The trapezius muscle is a large, triangular muscle that extends from the base of the neck to the middle of the back. It is responsible for moving the shoulder blades and stabilizing the neck and shoulder.
The trapezius muscle has three functions:
1. It elevates the shoulder girdle 2. It retracts the shoulder girdle 3. It rotates the scapula
The trapezius muscle is innervated by the accessory nerve (CN XI). The muscle is divided into three parts:
1. The upper part 2. The middle part 3. The lower part
The upper part of the trapezius muscle is the most active and is responsible for elevating the shoulder girdle. The middle part of the muscle is responsible for retracting the shoulder girdle. The lower part of the muscle is responsible for rotating the scapula.
The trapezius muscle is important for a variety of activities, such as throwing a ball, rowing a boat, or reaching overhead. It is also an important postural muscle and helps to maintain the head in an upright position.
The clinical significance of the trapezius muscle includes its role in the development of neck pain, headaches, and tension headaches. The muscle can also be a source of referred pain to the shoulder, arm, and hand.
The trapezius muscle is a commonly injured muscle. Injury to the muscle can occur from overuse, direct trauma, or poor posture. Treatment of trapezius muscle injuries typically includes rest, ice, and physical therapy.
What are the common injuries to the trapezius muscle?
The trapezius muscle is a large, triangular muscle that extends from the middle of the back of the neck, down the back, and out to the shoulder. It is responsible for moving the shoulder blades and stabilizing the neck and shoulders. The trapezius muscle is susceptible to a variety of injuries, including strains, sprains, and tears.
One of the most common injuries to the trapezius muscle is a strain. A strain occurs when the muscle is overstretched or torn. This can happen due to a sudden movement, such as reaching up to grab something, or due to repetitive motions, such as lifting weights. Symptoms of a trapezius muscle strain include pain, stiffness, and tenderness in the affected area. The muscle may also appear bruised or swollen.
A sprain is another common injury to the trapezius muscle. A sprain occurs when the ligaments that connect the muscle to the bone are stretched or torn. This can happen due to a sudden movement or fall, or due to repetitive motions. Symptoms of a trapezius muscle sprain include pain, stiffness, and tenderness in the affected area. The muscle may also appear bruised or swollen.
A tear is a more serious injury to the trapezius muscle. A tear occurs when the muscle is completely torn. This can happen due to a sudden movement, fall, or blow to the body. Symptoms of a trapezius muscle tear include severe pain, stiffness, and tenderness in the affected area. The muscle may also appear bruised or swollen.
Frequently Asked Questions
Is Spinotrapezius the same as trapezius?
Spinotrapezius is not the same as trapezius.
Where is the trapezius muscle located in the body?
The trapezius muscle is located in the neck and shoulder regions, back and thorax regions.
What is the rotation function of the upper trapezius muscle?
The rotation function of the upper trapezius muscle is to turn your head and shoulders to the opposite side.
Is the trapezius innervated by the brachial plexus?
The trapezius muscle is innervated by the accessory nerve (CN XI) and anterior rami of the C3 and C4 spinal nerves. These nerves contain proprioceptive/sensory fibers from the muscle.
What causes the trapezius to extend the neck?
One possible cause of the trapezius extending the neck may be that it contracts bilaterally, which causes an extension of the head and neck.
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