What Structures Make Up The Vertebral Arch

What Structures Make Up The Vertebral Arch?

The vertebral arch is formed by pedicles and laminae. Two pedicles extend from the sides of the vertebral body to join the body to the arch. The pedicles are short thick processes that extend one from each side posteriorly from the junctions of the posteriolateral surfaces of the centrum on its upper surface.

What are the two parts of the vertebral arch?

The vertebral arch consists of the pedicles which attach to the vertebral body and the laminae which come together to form the roof of the arch. Arising from the vertebral arch are the laterally projecting transverse processes and the posteriorly oriented spinous process.

What are the vertebral arches connected by?

Adjacent vertebral arches are connected by synovial joints called zygapophysial (facet) joints. They are formed between superior and inferior articular facets.

What is the vertebral arch of the vertebrae?

Vertebral arch: A circle of bone around the canal through which the spinal cord passes. A vertebral arch is composed of a floor at the back of the vertebra walls (the pedicles) and a roof where two laminae join.

What structures make up the vertebrae quizlet?

Terms in this set (13)
  • vertebra. a bone of the vertebral column it has a body an arch 7 processes and vertebral foramen.
  • the body of a vertebra. …
  • the arch. …
  • the pedicles. …
  • the laminae. …
  • the vertebral foramen. …
  • the vertebral canal. …
  • the vertebral notch.

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What structures form the sides and the top of the vertebral arch?

The vertebral arch is formed by the pedicles which are attached to the posterior side of the vertebral body and the lamina which come together to form the top of the arch. A pair of transverse processes extends laterally from the vertebral arch at the junction between each pedicle and lamina.

What is the structure of the vertebrae?

Vertebrae: The spine has 33 stacked vertebrae (small bones) that form the spinal canal. The spinal canal is a tunnel that houses the spinal cord and nerves protecting them from injury. Most vertebrae move to allow for a range of motion. The lowest vertebrae (sacrum and coccyx) are fused together and don’t move.

What is the vertebral column made up of?

In humans the vertebral column usually consists of 33 vertebrae placed in series and connected by ligaments and intervertebral discs. However the number of vertebrae can vary between 32 and 35. Usually there are 7 cervical 12 thoracic 5 lumbar 5 sacral and 4 caudal (coccygeal) vertebrae.

What structure S of the vertebrae connects the anterior vertebral body to the posterior arch?

Atlas (C1)

The Atlas is the first cervical vertebra and therefore abbreviated C1. This vertebra supports the skull. Its appearance is different from the other spinal vertebrae. The atlas is a ring of bone made up of two lateral masses joined at the front and back by the anterior arch and the posterior arch.

What structure is responsible for articulating with the vertebral column?

Facet joints are paired (left right sides) at the back of each vertebral body (C3-L5). Sometimes these joints are called zygapophyseal or apophyseal joints. These joints help stabilize the spine while allowing flexion (bending forward) extension (bending backward) and twisting movement (called articulation).

Which one of the following is made up of vertebrae?

The individual bones of the spine are the vertebrae. These are the building blocks of the spinal column. The vertebrae protect and support the spinal cord.

What are the primary curves 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).

What structure passes through the vertebral foramen?

spinal cord

arch surround an opening the vertebral foramen through which the spinal cord passes. The centrums are separated by cartilaginous intervertebral disks which help cushion shock in locomotion.

How many vertebrae make up the vertebral column quizlet?

It is formed by 26 irregular bones called vertebrae. The vertebral column has five major regions. 7 cervical vertebrae 12 thoracic vertebrae 5 lumbar vertebrae the sacrum and the coccyx.

Where is the vertebral column located quizlet?

Along the dorsal aspect of the vertebral bodies so on the ventral floor of the vertebral canal. It is present along the entire length of the vertebral column from the level of C2 to the sacrum.

Which vertebral structures form the enclosure for the spinal cord?

A&P Ch6-8 Test rw
Question Answer
Openings providing for exit of spinal nerves intervertebral foramina
Structures that form an enclosure for the spinal cord body and vertebral arch
Describe how a spinal nerve exists from the vertebral column through the intervertebral foramina

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Which of the following structures form the vertebral arch of a vertebrae bone?

Bony structures called pedicles protrude from each side of the vertebral body and join with the laminae to form the vertebral arch. The upper and lower surfaces of the vertebral body are flat and rough to provide attachment for the vertebral discs that lie between each vertebra.

Which structures are thin plates that form the posterior portion of the vertebral foramen?

Pedicles are short thick projections of bone that connect the body of the vertebrae to each transverse process. The laminae are thin plates of bone that form the posterior wall of the vertebral canal connecting each transverse process to the base of the spinous process.

Which of the following structures of a vertebrae is the hole through which the spinal column passes?

foramen

Each vertebra has an anterior arch and a posterior arch which form a hole called a foramen. The spinal cord passes through the foramen of each vertebra.

Where is the neural arch?

vertebral body
The neural arch is the bony structure that arises from the back of the vertebral body and encloses the spinal cord.

What are the 3 main parts of a vertebra?

The normal anatomy of the spine is usually described by dividing up the spine into three major sections: the cervical the thoracic and the lumbar spine. (Below the lumbar spine is a bone called the sacrum which is part of the pelvis). Each section is made up of individual bones called vertebrae.

What is the sacral region?

The sacral region (sacrum) is at the bottom of the spine and lies between the fifth segment of the lumbar spine (L5) and the coccyx (tailbone). The sacrum is a triangular-shaped bone and consists of five segments (S1-S5) that are fused together.

How many vertebrae make up the spine?

The average person is born with 33 individual bones (the vertebrae) that interact and connect with each other through flexible joints called facets. By the time a person becomes an adult most have only 24 vertebrae because some vertebrae at the bottom end of the spine fuse together during normal growth and development.

What structure is the human tailbone?

The coccyx is a triangular arrangement of bone that makes up the very bottom portion of the spine below the sacrum. It represents a vestigial tail hence the common term tailbone.

What are the five kinds of bones making up the vertebral column?

The mammalian vertebral column consists of five morphologically differentiated groups of vertebrae: cervical thoracic lumbar sacral and coccygeal (caudal) (Fig 3.1). In humans the vertebral column usually consists of 33 vertebrae placed in series and connected by ligaments and intervertebral discs.

Which part of the skull is connected with the vertebral column?

The atlas is the topmost vertebra and with the axis (the vertebra below it) forms the joint connecting the skull and spine. The atlas and axis are specialized to allow a greater range of motion than normal vertebrae. They are responsible for the nodding and rotation movements of the head.

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What vertebrae are in the neck?

The cervical spine (neck region) consists of seven bones (C1-C7 vertebrae) which are separated from one another by intervertebral discs. These discs allow the spine to move freely and act as shock absorbers during activity.

Which cartilage maintains the position of vertebrae in the vertebral column?

A disc is made of fibrocartilage (fybro-car-til-ledge). Fibrocartilage is a type of cartilage consisting of a dense matrix of collagen fibers giving discs great tensile strength. Discs function to absorb and distribute shock from movement (e.g. walking) and prevent the vertebrae from grinding against one another.

What structure passes through the foramen magnum what structure is responsible for articulating with the vertebral column?

The occipital bone forms the base of the skull at the rear of the cranium. It articulates with the first vertebra of the spinal cord and also contains the foramen magnum the large opening of the skill through which the spinal cord passes as it enters the vertebral column.

What articulates with the vertebral body?

A rib articulates at the junction of the vertebral body and pedicle (superior costal facet) of its named vertebra and the vertebra above (inferior costal facet). The rib also articulates with the transverse costal facet of the transverse process of its named vertebra.

What three structures make up the thoracic cage?

The thoracic cage can also be described as an osteocartilaginous cage formed by the sternum 12 pairs of ribs and costal cartilages 12 thoracic vertebrae and the intervertebral (IV) discs interposed between them. The thoracic cage like skeletal tissue in most parts of the body serves to support the thorax.

How do the vertebrae develop its spinous process?

The spinous process of a typical cervical vertebra is short and bifid posteriorly. It is bifid because it develops from two separate secondary centers of ossification. This morphology is unique to cervical spinous processes.

What are costal facets?

A costal facet is a site of connection between a rib and a vertebra. The costal facets are located on the vertebrae that the rib articulates with. They are the superior costal facet the inferior costal facet and the transverse costal facet. Rib 1 only articulates with a transverse costal facet.

What is a vertebral process?

Spine Anatomy Overview Video. Spinous process is a bony projection off the posterior (back) of each vertebra. The spinous process protrudes where the laminae of the vertebral arch join and provides the point of attachment for muscles and ligaments of the spine.

VERTEBRAL COLUMN ANATOMY (1/2)

Two Pedicles + Two Laminae = One Vertebral Arch

The Vertebral Body Arch and Processes

Individual Vertebrae with Structures

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