EXAM #2 (L-SPINE, SACRUM, COCCYX, SI) Flashcards
[Anatomy: Vertebral Column] Forms the _____ _____ of the skeleton Centered in the _____ plane Located in _____ _____
[Anatomy: Vertebral Column] Forms the central axis of the skeleton Centered in the midsagittal plane Located in posterior trunk
[Anatomy: Vertebral Column] * Functions: Encloses and protects _____ _____ Supports _____ and _____ Provides _____ attachments
[Anatomy: Vertebral Column] * Functions: Encloses and protects spinal cord Supports trunk and skull Provides muscle attachments
[Anatomy: Vertebral Column] Composed of _____, _____ bones called vertebrae Total of __ vertebrae in early life __ are true, movable vertebrae (__-C, __-T, __-L) Sacral and coccygeal segments are _____, _____ vertebrae
[Anatomy: Vertebral Column] Composed of small, irregular bones called vertebrae Total of 33 vertebrae in early life 24 are true, movable vertebrae (7-C, 12-T, 5-L) Sacral and coccygeal segments are false, fixed vertebrae
[Anatomy: Vertebral Column] Sacral vertebrae fuse into the _____ Coccygeal vertebrae fuse to form _____
[Anatomy: Vertebral Column] Sacral vertebrae fuse into the sacrum Coccygeal vertebrae fuse to form coccyx
[Anatomy: Vertebral Column] Divided into five groups named according to region they occupy…
[Anatomy: Vertebral Column] Divided into five groups named according to region they occupy Cervical vertebrae Thoracic vertebrae Lumbar vertebrae Sacral vertebrae Coccygeal vertebrae
[Anatomy: Vertebral Column] Has _____ curves that arch _____ and _____ from _____ plane
[Anatomy: Vertebral Column] Has four curves that arch anteriorly and posteriorly from mid-coronal plane
[Anatomy: Vertebral Column] Lordotic curves are _____ anteriorly (looking _____ at air) Kyphotic curves are _____ anteriorly (looking _____ at ground)
[Anatomy: Vertebral Column] Lordotic curves are convex anteriorly (looking up at air) Kyphotic curves are concave anteriorly (looking down at ground)
[Anatomy: Vertebral Column] Each curve named for region Cervical = _____ Thoracic = _____ Lumbar = _____ Pelvic = _____
[Anatomy: Vertebral Column] Each curve named for region Cervical = lordotic Thoracic = kyphotic Lumbar = lordotic Pelvic = kyphotic
[Anatomy: Vertebral Column] _____ is a condition of abnormal lateral curvature of the spine _____ is a condition of increased kyphotic curve of the thoracic spine (T-spine)
[Anatomy: Vertebral Column] Scoliosis is a condition of abnormal lateral curvature of the spine Kyphosis is a condition of increased kyphotic curve of the thoracic spine (T-spine)
[Anatomy: Vertebral Column] Vertebrae separated by intervertebral disks, composed of _____ Function as _____
[Anatomy: Vertebral Column] Vertebrae separated by intervertebral disks, composed of fibrocartilage Function as cushions
[Anatomy: Vertebral Column] HNP = ? “?” – see on x-ray more visible for CT or MRI
[Anatomy: Vertebral Column] HNP = herniated nucleus pulposus “Slipped disk” – see on x-ray more visible for CT or MRI
[Anatomy: Typical Vertebra] Two main parts: _____ (anterior) _____ (posterior)
[Anatomy: Typical Vertebra] Two main parts: Body (anterior) Vertebral arch (posterior)
[Anatomy: Typical Vertebra] The two parts enclose a space – ? The articulation of vertebral foramina form the … ?
[Anatomy: Typical Vertebra] The two parts enclose a space – the vertebral foramen The articulation of vertebral foramina form the vertebral canal
[Anatomy: Typical Vertebra] Vertebral arch formed by: ?x _____ ?x _____ The above support: ?x _____ ?x _____ ?x _____
[Anatomy: Typical Vertebra] Vertebral arch formed by: Two pedicles Two laminae The above support: Four articular processes Two transverse processes One spinous process
[Anatomy: Typical Vertebra] Pedicles project from _____ part of body Bottom is _____ to form vertebral _____ Articulation of vertebral notches form _____ _____
[Anatomy: Typical Vertebra] Pedicles project from posterior part of body Bottom is concave to form vertebral notches Articulation of vertebral notches form intervertebral foramina
[Anatomy: Typical Vertebra] Laminae project _____ and _____ from _____
[Anatomy: Typical Vertebra] Laminae project posteriorly and medially from pedicles
[Anatomy: Typical Vertebra] Transverse processes project _____ and a little _____ from junction of _____ and _____
[Anatomy: Typical Vertebra] Transverse processes project laterally and a little posteriorly from junction of laminae and pedicles
[Anatomy: Typical Vertebra] Spinous process projects _____ and _____ from junction of both _____ _____ _____ is congenital condition in which the laminae fail to fuse
[Anatomy: Typical Vertebra] Spinous process projects posteriorly and inferiorly from junction of both laminae Spina bifida is congenital condition in which the laminae fail to fuse
[Anatomy: Typical Vertebra] ?x articular processes arise from junction of _____ and _____ ?x _____ ?x _____ Articulate with vertebrae above and below and form _____ joints Also called _____ _____ joints
[Anatomy: Typical Vertebra] Four articular processes arise from junction of pedicles and laminae Two superior Two inferior Articulate with vertebrae above and below and form zygapophyseal joints Also called interarticular facet joints
[Anatomy: Lumbar Vertebrae] ?x in number Occupy the _____ abdominal region Unique features: Transverse processes are _____ than T-spine [*] _____ _____ – part of lamina between articular processes
[Anatomy: Lumbar Vertebrae] Five in number Occupy the posterior abdominal region Unique features: Transverse processes are smaller than T-spine [*] Pars interarticularis – part of lamina between articular processes
[Anatomy: Sacrum] Formed by fusion of ?x sacral segments into curved, _____ bone Wedged between _____ bones of pelvis Articulation = _____ joints
[Anatomy: Sacrum] Formed by fusion of five sacral segments into curved, triangular bone Wedged between iliac bones of pelvis Articulation = sacroiliac (SI) joints
[Anatomy: Sacrum] Anatomic features: _____ _____ _____ _____
[Anatomy: Sacrum] Anatomic features: Promontory Canal Foramina Cornu
[Anatomy: Coccyx] Formed by fusion of ?x to ?x rudimentary vertebrae Curves _____ and _____ from articulation with sacrum Anatomic features: _____
[Anatomy: Coccyx] Formed by fusion of three to five rudimentary vertebrae Curves inferiorly and anteriorly from articulation with sacrum Anatomic features: Cornu