#1
Which cervical vertebra is commonly known as the 'atlas'?
C1
ExplanationC1 is referred to as the 'atlas,' supporting the skull without a vertebral body and allowing nodding motion.
#2
What is the function of the cervical lordosis in the spine?
Maintains balance
ExplanationCervical lordosis helps maintain balance and proper alignment of the head over the spine.
#3
In the cervical spine, what is the function of the uncinate processes?
Limit lateral flexion
ExplanationUncinate processes in the cervical spine limit lateral flexion, contributing to stability.
#4
Which cervical vertebra has a prominent vertebral prominence (Adam's apple) in the anterior neck?
C7
ExplanationC7 has a prominent vertebral prominence (Adam's apple) in the anterior neck.
#5
What unique feature is present in the axis (C2) that allows the head to rotate?
Odontoid process
ExplanationThe odontoid process in C2 enables rotation of the head, forming the atlanto-axial joint with C1.
#6
Which ligament runs along the posterior aspect of the vertebral bodies in the cervical spine?
Posterior longitudinal ligament
ExplanationThe posterior longitudinal ligament runs along the back of vertebral bodies in the cervical spine, providing stability.
#7
What is the most common direction of the zygapophyseal (facet) joints in the cervical spine?
Sagittal
ExplanationThe zygapophyseal joints in the cervical spine commonly align in the sagittal plane, allowing flexion and extension.
#8
What type of joint connects the atlas (C1) to the axis (C2) in the cervical spine?
Pivot joint
ExplanationThe atlas (C1) and axis (C2) are connected by a pivot joint, allowing rotational movements.
#9
What is the primary function of the transverse ligament of the atlas (C1)?
Facilitates rotation
ExplanationThe transverse ligament of the atlas (C1) primarily facilitates rotation by holding the odontoid process in place.
#10
Which cervical vertebra has a large vertebral foramen to accommodate the cervical enlargement of the spinal cord?
C5
ExplanationC5 features a large vertebral foramen, accommodating the cervical enlargement of the spinal cord.
#11
What is the purpose of the transverse foramen in the cervical vertebrae?
Allows vertebral artery passage
ExplanationTransverse foramina in cervical vertebrae facilitate the passage of vertebral arteries supplying blood to the brain.
#12
Which cervical vertebra has a bifid (split) spinous process?
C5
ExplanationC5 has a bifid spinous process, a distinctive feature in the cervical spine.
#13
Which cervical vertebrae lack a vertebral body and have a prominent bifid (double) spinous process?
C7
ExplanationC7 lacks a vertebral body and features a prominent bifid spinous process, transitioning to the thoracic spine.
#14
Which ligament connects the odontoid process to the occipital bone?
Alar ligament
ExplanationThe alar ligament connects the odontoid process to the occipital bone, contributing to stabilization and rotation.
#15
Which cervical vertebrae are considered atypical due to their unique features?
C1 and C2
ExplanationC1 and C2 are atypical cervical vertebrae with distinct features, such as the atlas lacking a vertebral body and the axis having the odontoid process.
#16
What is the primary movement facilitated by the atlanto-axial joint (C1-C2)?
Rotation
ExplanationThe atlanto-axial joint (C1-C2) primarily facilitates rotational movements, allowing the head to rotate on the axis.