Muscles of the vertebral column

This is an online quiz called Muscles of the neck and vertebral column. Posterior rami of the spinal nerves intercostal nerves cervical plexus brachial plexus accessory nerve CN XI.

They have the largest vertebral bodies in the entire vertebral column a feature that facilitates weight bearing.

Muscles of the vertebral column. The superficial erector spinae include the spinalis longissimus and iliocostalis groups of muscles. These muscles extend the neck and the vertebral column while. Muscles of the Vertebral Column.

MUSCLES OF THE VERTEBRAL COLUMN- The system of ligaments in the vertebral column combined with the tendons and muscles provides a natural brace to help protect the spine from injury. For More Online Medical Resource Visit at httpgisurgeryinfo. These are 3 separate long columns of muscles on either side of the vertebral column that extend the back and help return the trunk to an upright position.

The iliocostalis runs from the iliac crest to the ribs. The longissimus runs medial to the iliocostalis. It runs from the spinous processes of the lumbar vertebrae to the ribs.

The vertebral column can withstand flexing as well as hyper-extending rotation as well as counter rotation and lateral flexing as well as extension. It has basically a 360 degree range of motion to contend with. The rectus abdominis is found in the abdominal muscles but it is also responsible for flexing the vertebral column.

Fascia of lower back posterior L T and lower C vertebrea and angles of ribs. Spinalis branch - spinous process of T and C and occipital bone. Longissimus branch - transverse process of T and C mastoid process.

Iliocostalis branch - angles of the ribs and cervical transverse processes. - the deepest muscles of the back and lie between transverse and spinous process of adjacent vertebrae. - Extends and rotates the vertebral column.

Stabilizes the vertebrae during the local movements of the vertebral columns. Transverse process of inferior vertebrae. They have the largest vertebral bodies in the entire vertebral column a feature that facilitates weight bearing.

The pedicles and laminae are thick and strong. Their spinous processes are short and sturdy for the attachment of strong lumbar muscles. Muscles of the Vertebral Column.

Anterior Abdominal muscles of ABS. Posterior Deep back muscles. Extension and hyperextension of vertebrae.

Superior surface of pubis body. 7 cervical 12 thoracic 5 lumbar 5 sacral sacrum 3-5 coccygeal coccyx vertebrae. Intervertebral discs zygapophyseal joints.

Extrinsic Superficial muscles Intrinsic Deep muscles. Posterior rami of the spinal nerves intercostal nerves cervical plexus brachial plexus accessory nerve CN XI. The vertebral column is also known as the spinal column or spine Figure 1.

It consists of a sequence of vertebrae singular vertebra each of which is separated and united by an intervertebral disc. Together the vertebrae and intervertebral discs form the vertebral column. About this Quiz.

This is an online quiz called Muscles of the Neck and Vertebral Column. Head and Trunk Movements. There is a printable worksheet available for download here so you can take the quiz with pen and paper.

Longissimus Thoracis extensionlateral flexion vertebral column rib rotation 6. Iliocostalis Thoracis extensionlateral flexion vertebral column rib rotation 7. Semispinalis Thoracis extendsrotates vertebral column.

Beside above what muscles extend the vertebral column. The superficial erector spinae include the spinalis longissimus and iliocostalis groups of muscles. These muscles extend the neck and the vertebral column while some will even move the ribs.

The deep erector spinae muscles include the quadratus lumborum and multifidus muscles. The anatomical complexity of the muscles of the vertebral column is subtended by a concept based on muscleaponeurosistendon synergy. To adapt each segment presents a curve which provides a state of pretension of defined shape organized to counterbalance the pre-forecast strain so as to.

What muscles perform lateral flexion of the vertebral column. TRUNK LATERAL FLEXION All trunk flexors and extensors can produce lateral flexion when acting unilaterally. The major muscles involved are the rectus abdominis external and internal obliques erector spinae semispinalis thoracis latissimus dorsi deep posterior spinal muscles quadratus lumborum and psoas.

The anterior column is the hydraulic and weight-bearing portion that provides the vertebral column with its shock-absorbing capability and consists of the vertebral bodies and intervertebral disks IVD. 3 The posterior column consists of the structures that provide the gliding mechanism for movement the articular processes and the zygapophyseal facet joints. 3 A motion segment in the.

The vertebral body joints are cartilaginous joints designed for weight-bearing. The articular surfaces are covered by hyaline cartilage and are connected by the intervertebral disc. Two ligaments strengthen the vertebral body joints.

The anterior and posterior longitudinal ligaments which run the full length of the vertebral column. The anterior longitudinal ligament is thick and prevents hyperextension. Transversospinalis muscles connect and stabilize the vertebrae and are located deep to the erector spinae.

These include the multifidus rotatores and semispinalis group. The paired quadratus lumborum muscles help move the vertebral column and are located primarily in the lumbar region. About this Quiz.

This is an online quiz called Muscles of the neck and vertebral column. There is a printable worksheet available for download here so you can take the quiz with pen and paper. The human vertebral column is composed of a set of natural curves as is illustrated in Figure 8-1.

These reciprocal curves are responsible for the normal resting or neutral posture of the spine. The cervical and lumbar regions display a natural lordosis or slightly extended posture in. The five regions of the spinal column.

The abdominal and back muscles maintain the spines natural curves. What are the normal curvatures of the vertebral column. The vertebral column is curved with two primary curvatures thoracic and sacrococcygeal curves and two secondary curvatures cervical and lumbar curves.

The multifidus muscle of the lumbar region helps extend and laterally flex the vertebral column. These muscles bring together the spinous and transverse processes of each consecutive vertebra. Finally the scalene muscles work together to flex laterally flex and rotate the head.

Additionally what runs through the vertebral column. On the back of each vertebra are bony projections that form. Muscles of the Vertebral Column.

Chapter 6 Lesson 4. The erector spinae a group of muscles in the lower back help the body maintain good posture.