Synch Lec 2 - Vertebral Column + Thoracic Cage Quiz
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Questions and Answers

Which region of the vertebral column has the smallest bodies?

  • Cervical (correct)
  • Thoracic
  • Lumbar
  • Sacral

    • How many separate bones make up the vertebral column?

  • 26 (correct)
  • 32
  • 34
  • 33

    • Which curvature of the spine is concave anteriorly?

  • Primary curvatures
  • Kyphotic curves (correct)
  • Lordotic curves
  • Secondary (2º) curvatures

    • When does the cervical lordosis develop?

    <p>When infants begin to hold their heads up</p> Signup and view all the answers

    Pedicles connect...

    <p>Body to TVPs</p> Signup and view all the answers

    Laminae connect

    <p>TVPs to SP</p> Signup and view all the answers

    How many pairs of spinal nerves exit off the spinal cord?

    <p>31</p> Signup and view all the answers

    Which part of the vertebrae connects the body of the vertebrae with the transverse processes?

    <p>Pedicles</p> Signup and view all the answers

    What is the opening between the body and the vertebral arch called?

    <p>Vertebral foramen</p> Signup and view all the answers

    Which curvature develops when children start standing and walking?

    <p>Lumbar lordosis</p> Signup and view all the answers

    Which region(s) of the vertebral column forms a lordotic curvature?

    <p>Cervical and Lumbar</p> Signup and view all the answers

    The atlas has...

    <p>All of the above</p> Signup and view all the answers

    Which thoracic vertebrae have no facets on the transverse processes?

    <p>T11 and T12</p> Signup and view all the answers

    What are the components of the thoracic cage?

    <p>All of the above</p> Signup and view all the answers

    Which part of the sternum articulates with the clavicles and the first and upper part of the second costal cartilages on each side?

    <p>Manubrium</p> Signup and view all the answers

    Which rib has a tubercle on the inner (medial) border for the insertion of the anterior scalene muscle?

    <p>First rib</p> Signup and view all the answers

    Which rib(s) have only a single articular facet on the head and no neck or tubercle?

    <p>Eleventh and twelfth ribs</p> Signup and view all the answers

    Which part of the ribs carries the intercostal muscles?

    <p>Intercostal spaces</p> Signup and view all the answers

    Which part of the rib accommodates the intercostal vessels and nerve?

    <p>Costal groove</p> Signup and view all the answers

    Which part of the rib has two semi-facets for articulation with the numerically corresponding vertebral body and that of the vertebra immediately above?

    <p>Head</p> Signup and view all the answers

    Which part of the sternum marks the approximate level of the 2nd pair of costal cartilages and the level of the intervertebral disc between T4 and T5?

    <p>Sternal angle</p> Signup and view all the answers

    Which part of the vertebral column consists of five fused vertebrae and forms a wedge-shaped bone?

    <p>Sacrum</p> Signup and view all the answers

    What is the function of the intervertebral discs in the vertebral column?

    <p>To bear weight and absorb shock</p> Signup and view all the answers

    Which part of the sacrum articulates with the coccyx?

    <p>Narrow inferior border</p> Signup and view all the answers

    How many pairs of posterior sacral foramina are present in the sacrum?

    <p>4</p> Signup and view all the answers

    What are the two triangular flat surfaces called on the sides of the first sacral vertebra?

    <p>Sacral Ala</p> Signup and view all the answers

    Which part of the vertebral column articulates with the two hip bones to form the sacroiliac joints?

    <p>Sacrum</p> Signup and view all the answers

    How many vertebrae are fused together to form the coccyx?

    <p>Four</p> Signup and view all the answers

    What is the name of the concentric rings of fibrocartilage that connect adjacent vertebral bodies and secure the nucleus in position in the intervertebral discs?

    <p>Annulus fibrosus</p> Signup and view all the answers

    Which part of the vertebral column has the vertebral foramina that form the sacral canal?

    <p>Sacrum</p> Signup and view all the answers

    Lamina + Pedical = Vertebral ____

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    Transverse ligament of the atlas holds the _____ in place

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    The 1st rib only articulates with T1

    <p>True</p> Signup and view all the answers

    The 2nd rib only articulates with T2

    <p>False</p> Signup and view all the answers

    Which throacic vertebra(e) will the 4th rib articulate with?

    <p>T3 &amp; T4</p> Signup and view all the answers

    Which of the following ribs are atypical?

    <p>Rib 10</p> Signup and view all the answers

    Which of the following ribs are atypical?

    <p>All of the above</p> Signup and view all the answers

    Intervertebral disks make up approximately 50% of column height

    <p>False</p> Signup and view all the answers

    ____________ is a semi-gelatinous mass that acts as shock absorber

    Signup and view all the answers

    Annulus Fibrosis are concentric rings of ________ that connect adjacent vertebral bodies and secure nucleus in position

    Signup and view all the answers

    The most distinctive feature of the C7 is a prominent _______

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    The only exceptional feature of C2 is the _______

    Signup and view all the answers

    Which region of the vertebral column has the largest bodies?

    <p>Lumbar</p> Signup and view all the answers

    Study Notes

    Vertebral Column Basics

    • The cervical region contains the smallest vertebral bodies.
    • The vertebral column consists of 33 separate bones.
    • The primary curvature of the spine that is concave anteriorly is the thoracic curvature.
    • Cervical lordosis develops during infancy as the baby gains head control.

    Vertebral Connections

    • Pedicles connect the vertebral body to the transverse processes.
    • Laminae connect the transverse processes to the spinous process.
    • The vertebral arch and the body of the vertebra have an opening known as the intervertebral foramina.

    Spinal Nerves and Vertebrae

    • There are 31 pairs of spinal nerves that exit off the spinal cord.
    • The part of the vertebra that connects the body to the transverse processes is called the lamina.

    Curvatures of the Spine

    • Lordotic curvature develops when children start standing and walking.
    • The cervical and lumbar regions of the vertebral column form lordotic curvatures.

    Atlas and Thoracic Vertebrae

    • The atlas (C1) has no body and no spinous process; it supports the skull.
    • T11 and T12 thoracic vertebrae have no facets on the transverse processes.

    Thoracic Cage Components

    • The thoracic cage consists of 12 pairs of ribs, the sternum, and the thoracic vertebrae.
    • The manubrium is the part of the sternum that articulates with the clavicles and the first two costal cartilages.

    Rib Anatomy

    • The 1st rib has a tubercle on its inner border for the anterior scalene muscle attachment.
    • Ribs 11 and 12 have a single articular facet on the head and lack neck or tubercle.
    • The costal groove on the ribs accommodates the intercostal vessels and nerves.
    • The head of the ribs has two semi-facets for articulation with the corresponding and adjacent vertebrae.
    • The sternal angle marks the approximate level of the 2nd pair of costal cartilages.

    Sacrum and Coccyx

    • The sacrum consists of five fused vertebrae that form a wedge-shaped bone.
    • The intervertebral discs function to absorb shock between vertebral bodies.
    • The coccyx is formed from the fusion of four vertebrae.
    • The auricular surface of the sacrum articulates with the hip bones at the sacroiliac joints.
    • There are four pairs of posterior sacral foramina present in the sacrum.
    • The alae on the sides of the first sacral vertebra are the two triangular flat surfaces.

    Disc Anatomy

    • The annulus fibrosus refers to the concentric rings of fibrocartilage that secure the nucleus pulposus in place within intervertebral discs.
    • The nucleus pulposus is a semi-gelatinous mass that acts as a shock absorber in the vertebral column.

    Miscellaneous Features

    • The most distinctive feature of C7 is a prominent spinous process, often referred to as the vertebra prominens.
    • The only exceptional feature of C2 (axis) is the presence of the odontoid process (dens).
    • The lumbar region of the vertebral column has the largest vertebral bodies.

    Additional Notes

    • Intervertebral discs make up approximately 50% of the height of the vertebral column.
    • The structure created by the combination of laminae and pedicles is called the vertebral arch.
    • The transverse ligament of the atlas holds the odontoid process of C2 in place.
    • The 1st rib articulates only with T1, and the 2nd rib articulates only with T2.
    • The 4th rib articulates with T3 and T4 thoracic vertebrae.
    • Atypical ribs include ribs 1, 2, 11, and 12 due to their unique articulations.

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    Related Documents

    BMS MSK Lecture 2 Fall 2023 PDF

    Description

    Test your knowledge on the attachments and functions of the upper limb muscles, as well as the classification of the thoracic cage and its rib attachments. Learn about the structures that protect the organs and support the mammary glands.

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