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What vertebral column bears a peg-shaped dens that acts as a pivot?
The cervical vertebrae, specifically the second cervical vertebra (C2) known as the axis, bear a peg-shaped dens (odontoid process) that acts as a pivot for rotation of the atlas (C1) and allows for the turning of the head from side to side.
What bone is the cranium connected to?
The Atlas
What is the dens a part of?
The dens is a part of the central nervous system, specifically within the brainstem. The dens is a bony projection on the axis bone that articulates with the atlas bone, allowing for mobility of the head and neck.
Where is your pivot joint in your face located?
There is only one pivot joint in the body and it is located in the neck. It is the joint between the first and second cervical vertebrae also known as atlas and axis respectively. Axis has a the "peg" part of the pivot projecting upwards and atlas has the hole around it. This is the joint that allows the heart to rotate left to right.There are two pivot joints. One between C1 and C2 of the vertebrae. The second in the forearm between the ulna and radius.
What is a vertebrae better known as?
a vertebra is more closely defined according to what part of the spine it's in. It may be cervical (neck), thoracic (chest), lumbar (abdomen), or sacral (hips).
Where is atlas and dens of the axis located?
The atlas and dens (or odontoid process) are located in the cervical region of the spine. The atlas is the first cervical vertebra (C1) and supports the skull, allowing for nodding movements. The dens, which is a bony projection, is part of the second cervical vertebra (C2), also known as the axis, and fits into the atlas, enabling rotational movement of the head. Together, they play a crucial role in the mobility and stability of the cervical spine.
What is the dens odontoid process?
Since the dens is part of the Axis vertebra (and project up in the first vertebra, the Atlas vertebra that supports the skull) it is called the Dens Axis
What is the hole on the axis of the human vertebrae?
The hole on the axis of the human vertebrae is known as the vertebral foramen. It is part of the vertebral arch and serves as a passageway for the spinal cord and associated nerves. In the case of the axis specifically (the second cervical vertebra), this foramen allows for the rotation of the atlas (the first cervical vertebra) around the odontoid process, or dens, enabling head movement.
What vertebral column bears a peg-shaped dens that acts as a pivot?
The cervical vertebrae, specifically the second cervical vertebra (C2) known as the axis, bear a peg-shaped dens (odontoid process) that acts as a pivot for rotation of the atlas (C1) and allows for the turning of the head from side to side.
What part of the vertabrea controls head movement?
The atlas vertebra (C1) controls the rotation of the head from left to right, while the axis vertebra (C2) allows for nodding or shaking of the head up and down. Together, these vertebrae form the upper cervical spine, which is responsible for a significant portion of head movement.
What bone is the cranium connected to?
The Atlas
What is the dens a part of?
The dens is a part of the central nervous system, specifically within the brainstem. The dens is a bony projection on the axis bone that articulates with the atlas bone, allowing for mobility of the head and neck.
Where is vertrabrace are located in the?
A 'Vertebra' is one bone in a spine. 'Vertebrae' (ver-tuh-bray) is a word for more than one vertebra, as in, "There are 12 vertebrae in the thoracic part of the spine." Or, "His second cervical vertebra was fractured".
Which part of the vertebral column has one more pair of nerves coming from it than it has vertebra?
The cervical region of the vertebral column has one more pair of nerves than vertebrae. There are seven cervical vertebrae (C1 to C7) but eight pairs of cervical nerves (C1 to C8). This occurs because the first pair of cervical nerves exits above the first cervical vertebra, while the remaining pairs exit below their corresponding vertebrae.
Where is your pivot joint in your face located?
There is only one pivot joint in the body and it is located in the neck. It is the joint between the first and second cervical vertebrae also known as atlas and axis respectively. Axis has a the "peg" part of the pivot projecting upwards and atlas has the hole around it. This is the joint that allows the heart to rotate left to right.There are two pivot joints. One between C1 and C2 of the vertebrae. The second in the forearm between the ulna and radius.
What is a vertebrae better known as?
a vertebra is more closely defined according to what part of the spine it's in. It may be cervical (neck), thoracic (chest), lumbar (abdomen), or sacral (hips).
what is the medical term for moving your head from side to side?
The medical term for moving the head from side to side is "cervical rotation." This movement occurs at the cervical spine, specifically involving the atlas and axis vertebrae, which allow for lateral movement of the head. It can be part of normal neck mobility or assessed during physical examinations for various conditions.
