Origin and insertion Longissimus cervicis originates from the transverse processes of the first 5 thoracic vertebrae (T1-T5). It ascends between the tendons of longissimus capitis and longissimus thoracis to insert at the posterior tubercle of the transverse processes of vertebrae C2-C6.
Where does the longissimus muscle attach?
The longissimus muscle is connected to vertebrae in the lumbar, thoracic, and cervical regions of the vertebral column.
What is the function of longissimus muscle?
The longissimus thoracis muscle also attaches onto the transverse processes of all 12 thoracic vertebrae. This muscle functions to hold the thoracic and lumbar regions erect, and laterally flexes the spine when it acts unilaterally.
What is the longissimus capitis muscle?
Longissimus capitis is the part of the longest muscle of the neck, which serves to rotate the head from side to side and extend the head.
What is the origin insertion and action of the longissimus Thoracis?
Origin: Transverse and spinous processes of lumbar vertebrae; sacrum and iliac crest via iliocostalis lumborum tendon & lumbosacral aponeurosis. Insertion: Transverse processes of T1 – T12; between tubercles and angles of lower 9 to 10 ribs. There must be an easier way to learn muscle anatomy, right? Right!
What is the origin and insertion of the erector spinae?
It has three parts: spinalis thoracis which originates from the spinous process of L3-T10 and inserts in the spinous process of T8-T2. spinalis cervicis originates from the spinous process of T2-C6 and inserts in the spinous process of C4-C2.
What does longissimus mean?
Medical Definition of longissimus : the intermediate division of the sacrospinalis muscle that consists of the longissimus capitis, longissimus cervicis, and longissimus thoracis also : any of these three muscles.
Which of the following is a part of the origin of the iliocostalis?
The lumbar part of iliocostalis lumborum originates from the lateral crest of sacrum, medial end of iliac crest and thoracolumbar fascia. It courses superiorly and inserts to the transverse processes of vertebrae L1-L4 and to the adjacent part of the middle layer of thoracolumbar fascia.
What is the insertion of the highlighted muscle?
24 Cards in this Set
| Identify the highlighted structure. | Teres major (note the posterior view of the specimen). |
|---|---|
| What is the origin and insertion of the highlighted muscle? | Origin: Pubic symphysis and crest Insertion: costal cartilages of ribs 5-7, xiphoid |
What muscle has an origin from the occipital bone to the spinous process of T12?
The trapezius muscle
(Bottom) The trapezius muscle covers the superior and posterior aspect of the upper shoulder. It originates from the occipital bone, ligamentum nuchae, and the spinous processes of C7 to T12. It inserts on the posterior border of the lateral clavicle, the medial border of the acromion, and the spine of the scapula.
What does longissimus mean in anatomy?
What muscle is named for its origin and insertion?
An even smaller number of muscles are named after the parts of the body where they start and end — their origin and insertion. The sternocleidomastoid muscle, for example, originates from both the sternum and clavicle (breastbone and collarbone) and inserts into the mastoid bone (just below the ear).
What is the origin and insertion of the psoas muscle?
The psoas major is divided into a superficial and deep part. The deep part originates from the transverse processes of lumbar vertebrae I-V. The superficial part originates from the lateral surfaces of the last thoracic vertebra, lumbar vertebrae I-IV, and from neighboring intervertebral discs.
Which muscle has its insertion on the sternum?
The sternocleidomastoid (SCM) muscle is a voluntary, skeletal muscle located on each side of the neck. It is a ‘two headed’ muscle, meaning it has two origin sites and one insertion site. The SCM’s origins are the sternum and clavicle and its insertion is the mastoid process behind the ear.
