What articulates the vertebral column?
Superiorly, the C1 vertebra articulates (forms a joint) with the occipital condyles of the skull. Inferiorly, C1 articulates with the C2 vertebra, and so on. Below these are the 12 thoracic vertebrae, designated T1–T12. The lower back contains the L1–L5 lumbar vertebrae.
What is responsible for the movement of the vertebral column?
Movements of the spine are possible due to intervertebral discs, and with the fulcrum of movement occurring primarily around the nucleus pulposus. Specialized motion occurs at the atlanto-occipital and atlantoaxial joints, which do not contain a disc.
What joints articulate with a vertebra?
The joints in the spine are commonly called Facet Joints. Other names for these joints are Zygapophyseal or Apophyseal Joints. Each vertebra has two sets of facet joints. One pair faces upward (superior articular facet) and one downward (inferior articular facet).
What does the cervical vertebrae articulate with?
Below the axis, the cervical vertebrae articulate with each other anteriorly at the intervertebral disks and posteriorly at the facet joints.
What region of the vertebral column does the hip bone articulate with?
What region of the vertebral column does the hip bone articulate with? Sacral region. The hip bones articulate with the sacrum at the sacroiliac joint.
What muscle flexes vertebral column?
| Name of Muscle | Action |
|---|---|
| Iliocostalis | Extends and flexes laterally vertebral column |
| Longissimus | Extends and flexes laterally vertebral column |
| Spinalis | Extends vertebral column |
| Semispinalis | Extends neck and vertebral column |
What muscles are attached to the vertebral column?
The two main muscle groups that affect the spine are extensors and flexors. The extensor muscles enable us to stand up and lift objects. The extensors are attached to the back of the spine. The flexor muscles are in the front and include the abdominal muscles.
Which structures are the joint surfaces that allow the cranium to articulate with the vertebral column?
Which structure are the joint surfaces that allow the cranium to articulate with the vertebral column? Occipital condyles – These are the joint surfaces that articulate with the first cervical vertebra (also known as atlas) and allow the flexion and extension of the skull.
Which ribs articulate with which vertebrae?
There are twelve pairs of ribs. Each rib articulates posteriorly with two thoracic vertebrae by the costovertebral joint. An exception to this rule is that the first rib articulates with the first thoracic vertebra only.
What does the dens of the axis articulate with?
One of the most prominent features of the axis bone is a superior, tooth-like projection called the odontoid process (or dens). articulates with the anterior arch of the atlas bone, where they form a pivot joint.
Where is the articular pillar located on a cervical vertebra?
The articular pillar is that part of the vertebra that lies immediately posterior and medial to each transverse process.
Which structure articulates with the acetabulum?
The acetabulum is the cup-shaped socket on the lateral aspect of the pelvis, which articulates with the head of the femur to form the hip joint.
Which region of the vertebral column connect with the rib cage?
thoracic vertebrae The rib cage is joined to the thoracic vertebrae. At T11 and T12, the ribs do not attach and are so are called "floating ribs." The thoracic spine's range of motion is limited due to the many rib/vertebrae connections and the long spinous processes.
Which of these muscles extends the vertebral column?
The erector spinae group of muscles on each side of the vertebral column is a large muscle mass that extends from the sacrum to the skull. These muscles are primarily responsible for extending the vertebral column to maintain erect posture.
What muscle extends and rotates the vertebral column?
The multifidus muscles extend and rotate the vertebral column. Moving medially, we can see the multifidus muscles that originate on the sacrum and vertebrae and insert on more superior vertebrae. Due to these attachments, they extend and rotate the vertebral column.
What muscle contributes to extension of the vertebral column?
the erector spinae Extension (or hyperextension) of the trunk is caused by the back muscles around the vertebral column. These deep muscles of the back form a broad, thick column which extend from the sacrum up to the skull. The largest of these muscles is the erector spinae.
What is the joint between the skull and vertebral column?
A craniovertebral joint is exactly what it sounds like: a joint that permits movement between the vertebral column and the skull. The ligaments in the spine support and reinforce the joints between the vertebrae. The atlas and axis in particular work with the ligaments to move the neck.
Which part of the skull is connected with the vertebral column?
Regions of the Vertebral Column Superiorly, the C1 vertebra articulates (forms a joint) with the occipital condyles of the skull. Inferiorly, C1 articulates with the C2 vertebra, and so on. Below these are the 12 thoracic vertebrae, designated T1–T12. The lower back contains the L1–L5 lumbar vertebrae.
Where does the first rib articulate?
The costal cartilage of the first rib articulates with the manubrium of the sternum not at the top, but lower down at its broadest part. The first costal cartilage is short and massive. It hardly permits any movement, so the two first ribs, together with the manubrium, move up and down together as one solid arch.
Where does the head of the rib articulate?
The articulations of the heads of the ribs (or costocentral articulations) constitute a series of gliding or arthrodial joints, and are formed by the articulation of the heads of the typical ribs with the costal facets on the contiguous margins of the bodies of the thoracic vertebrae and with the intervertebral discs …
What does the atlas articulate with?
Articulations. Superiorly the atlas articulates with the occiput to form the Atlanto-occipital joint which allows the head to nod up and down on the vertebral column. Inferiorly the atlas articulates with the dens which acts as a pivot that allows the atlas and attached head to rotate on the axis.
Does the axis articulate with the skull?
The atlas is the topmost vertebra and, with the axis (the vertebra below it), forms the joint connecting the skull and spine.
Where is the articular process located?
Normal Anatomy The articular processes' synovial intervertebral articulation complex is located dorsal to the vertebral canal and is composed of the caudal articular process of one vertebra, the joint space, and the cranial articular process of the following vertebra (Figures 52-12 through 52-14).
Which structure articulates with the acetabulum quizlet?
The acetabulum of the coxal bone articulates with the head of the femur to form the coxal joint.
How do ribs articulate with vertebrae?
Each thoracic vertebra articulates with a pair of ribs. Each rib end articulates with demifacets above and below the discs to form synovial costovertebral joints as well as the thoracic transverse processes to form costotransverse joints.
Which of the following parts of a rib articulates with the body of a vertebra?
Each rib articulates posteriorly with two thoracic vertebrae; by the costovertebral joint. An exception to this rule is that the first rib articulates with the first thoracic vertebra only.
Which muscle is responsible for flexion of the vertebral column?
The intermediate layer contains the erector spinae muscles, whose many functions include the extension and lateral flexion of the spine, head and neck. The deep layer consists of the transversospinalis muscles. Their functions include extension, lateral flexion and rotation of the head and spine.
What muscle contributes to the extension of the vertebral column?
Muscles of the Spinal Column
| THORACIC MUSCLES | FUNCTION |
|---|---|
| Longissimus Thoracis | Extension, lateral flexion of vertebral column, rib rotation |
| Iliocostalis Thoracis | Extension, lateral flexion of vertebral column, rib rotation |
| Spinalis Thoracis | Extends vertebral column |
| Semispinalis Thoracis | Extends & rotates vertebral column |
•May 15, 2019
What muscles attach to the vertebrae?
Thoracic vertebrae provide attachment points for numerous muscles: erector spinae, interspinales, intertransversarii, latissimus dorsi, multifidus, rhomboid major, rhomboid minor, rotatores, semispinalis, serratus posterior superior/inferior, splenius capitis, splenius cervicis, and trapezius.
Which back muscle extends and rotates the vertebral column?
Muscles of the Spinal Column
| LUMBAR MUSCLES | FUNCTION |
|---|---|
| Intertransversarii Mediales | Lateral flexion of vertebral column |
| Multifidus | Extends & rotates vertebral column |
| Longissimus Lumborum | Extends & rotates vertebral column |
| Iliocostalis Lumborum | Extension, lateral flexion of vertebral column, rib rotation |
•May 15, 2019