Which of these features are found in lumbar vertebrae?

Question

BlackTom AI · Accepted Answer

Question focus: identifying features found in lumbar vertebrae. 
Option 1: 'none of these features are found on lumbar vertebrae' is incorrect because lumbar vertebrae do have several recognizable features, including spinous processes. Declaring that none of the listed features exist misstates anatomy. 
Option 2: 'transverse foramina' are characteristic of cervical vertebrae and are not present in lumbar vertebrae; lumbar bones lack these openings, so this statement is false for lumbar anatomy. 
Option 3: 'costal facets' are a hallmark of thoracic vertebrae where ribs attach; lumbar vertebrae do not have costal facets, making this option incorrect for lumbar anatomy. 
Option 4: 'dens' refers to the odontoid process of the axis (C2); it is a unique feature of the axis and certainly not a lumbar feature, so this is incorrect for lumbar anatomy. 
Option 5: 'spinous processes' are indeed present in lumbar vertebrae. They are typically broad, rectangular, and project posteriorly, serving as attachment points for muscles and ligaments. This option correctly identifies a true lumbar vertebra feature. 
In summary, among the listed features, only 'spinous processes' correctly describes a feature found in lumbar vertebrae, while the others are characteristic of other regions of the spine and do not apply to lumbar vertebrae.

BIOLOGY 211-B09C Practice Exam 1

Which of these features are found in lumbar vertebrae?

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