What is the position of the sternocleidomastoid?
The sternocleidomastoid is a superficially located neck muscle that plays an important role in tilting your head and turning your neck, as well as other things. It courses from the back of your head and attaches to your breastbone and collar bone.
What is sternocleidomastoid anatomy?
Description. Sternocleidomastoid (SCM) (synonym musculus sternocleidomastoideus) is a paired superficial muscle in the anterior portion of the neck. The sternocleidomastoid muscle (SCM) is an important landmark in the neck which divides it into an anterior and a posterior triangle.
Where is the origin of the sternocleidomastoid?
Origin and insertion The sternal head originates from the manubrium sterni, while the clavicular head from the medial third of the clavicle. The insertion is the lateral surface of the mastoid process of the temporal bone and the lateral half of the superior nuchal line of the occipital bone.
Where would an antagonist to the sternocleidomastoid muscles be located?
neck
The sternocleidomastoid muscles help to flex the neck. Their antagonists are the longus capitis and the rectus capitis anterior.
What is the origin insertion and action of the sternocleidomastoid?
The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. The sternocleidomastoid is innervated by the accessory nerve….Sternocleidomastoid muscle.
| Sternocleidomastoid | |
|---|---|
| Origin | Manubrium and medial portion of the clavicle |
| Insertion | Mastoid process of the temporal bone, superior nuchal line |
What is the insertion of the trapezius muscle?
Insertion. The muscle inserts on the lateral third of clavicle, acromion, and spine of scapula.
What is the insertion of the sternocleidomastoid muscle quizlet?
Where does the sternocleidomastoid muscle originate and insert? ORIGINATES from the external surface of the occipital bone and posterior midline of the cervical and thoracic regions. INSERTS on the lateral third of the clavicle and parts of the scapula.
What is the antagonistic pair of the sternocleidomastoid?
The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. The sternocleidomastoid is innervated by the accessory nerve….Sternocleidomastoid muscle.
| Sternocleidomastoid | |
|---|---|
| TA2 | 2156 |
| FMA | 13407 |
| Anatomical terms of muscle |
What is the Splenius capitis antagonist?
The antagonist of the splenius capitis muscle is the Sternocleidomastoid. The splenius captis is located on the lateral side of the C7. The muscle allows the head and vertebrae to extend.
What is posterior to the sternocleidomastoid in the neck?
The posterior triangle is a triangular area found posteriorly to the sternocleidomastoid muscle. It has three borders; anterior, posterior and inferior borders.
What is the function of sternocleidomastoid?
Sternocleidomastoid (SCM) (synonym musculus sternocleidomastoideus) is a paired superficial muscle in the anterior portion of the neck. The sternocleidomastoid muscle (SCM) is an important landmark in the neck which divides it into an anterior and a posterior triangle. This muscle binds the skull to the sternum and clavicle. Origin.
Where is the insertion of the sternocleidomastoid muscle?
The insertion is the lateral surface of the mastoid process of the temporal bone and the lateral half of the superior nuchal line of the occipital bone. Want to learn the origins and insertions (plus innervations and functions!) of the sternocleidomastoid muscle 10x faster and easier? You need our head and neck muscle anatomy chart!
How do you assess sternocleidomastoid muscle function?
Sternocleidomastoid Muscle Function Evaluation The assessment begins with a patient sitting to observe any hypotrophy of sternocleidomastoid muscle (SCM) as well as postural abnormalities of the neck and head, shoulder and scapula, clavicle, and sternal manubrium.
How do I lengthen the sternocleidomastoid muscle?
Helps to lengthen the sternocleidomastoid muscle by stretching it. Start by retracting your neck to allow for your neck and spine to naturally align Now bend your neck to the left, bringing your ear to your shoulder When you feel the stretch on the right sternocleidomastoid, hold for 20 to 30 seconds