Day 10 Flashcards
What is characteristic of the L1-L4 articular processes?
The transverse diameter (width between/distance between) superior articular process of an L1-L4 segment will be greater than the transverse diameter (width between/distance between) the inferior articular processes of that same segment.
**What is the orientation of the typical lumbar superior articular facet?
backward, upward, medial (BUM); typically concave
**What is the orientation of the typical lumbar inferior articular facet?
forward, lateral, downward (FoLD) ; slightly convexity
What muscle(s) will attach to the mammillary process?
multifidis and intertransversarii
What is the joint classification for the typical lumbar zygapophysis?
synovial plane (diarthrosis)
How many joint classification for the typical lumbar vertebra?
four
What is the position of the lumbar zygapophysis in children?
the zygapophysis lies in the coronal plane
What is the position of the lumbar zygapophysis in adults?
the zygapophysis lies in the sagittal plane for L1/L2, L2/L3, and L3/L4;
the zygapophysis lies in the coronal plane for L4/L5 and L5/S1
What names are given to the condition in which one zygapophysis of a vertebral couple lies in the coronal plane or position and the other zygapophysis lies in the sagittal plane or position?
joint asymmetry or joint tropism
What is the name(s) of the condition in which the typical lumbar spinous process increases in length due to the aging process?
Baastrup’s syndrome or “kissing spines”
What is Baastrup’s syndrome?
elongation of the lumbar spinous process as a result of aging
What muscles will attach to the typical lumbar spinous process?
latissimus dorsi, serratus posterior inferior, iliocostalis lumborum, longissimus thoracis, spinalis thoracis, multifidis, rotator longus, rotator brevis and interspinalis
How many joint surfaces are present on the vertebral body of the fifth lumbar?
six
How many cartilaginous (amphiarthrosis) symphysis joint surfaces are present on the vertebral body of L5?
two
How many fibrous (amphiarthrosis) syndesmosis joint surfaces are present on the vertebral body of L5?
four
What joint classifications will be observed at the vertebral body of the fifth lumbar?
cartilaginous (amphiarthrosis) symphysis and fibrous (amphiarthrosis) syndesmosis
What muscle(s) attach to the fifth lumbar vertebral body?
psoas major
What is the joint classification of the mammillo-accessory ligament?
there is none since it attaches parts of the same vertebra together
What muscles may attach to the transverse process of the fifth thoracic vertebrae?
psoas major, quadratus lumborum, longissimus thoracis, rotator brevis, rotator longus, and intertransversarii
What ligaments traditionally attach to the transverse process of the fifth lumbar vertebrae?
lumbosacral, iliolumbar and mamillo-accessory ligaments
What is the reported angulation and X-ray appearance of the fifth lumbar articular facets?
they lie in the vertical plane and are coronal facets
What is the name(s) of the condition in which the L5 spinous process increases in length due to the aging process
Baastrup’s syndrome or “kissing spines”
**What is the name given to the congenital condition in which the fifth lumbar spinous process is elongated, the sacrum exhibits spin bifid a, and dorsiflexion produces pain?
Knife Clasp Syndrome
What muscles will attach to the fifth lumbar spinous process?
latissimus dorsi, iliocostalis lumborum, longissimus thoracis, multifidis, rotator longus, rotator brevis and interspinalis
