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Topic: Lumbar vertebrae

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Lumbar

Cervical vertebrae

Vertebra

Spine(anatomy)

Thoracic vertebrae

Coccyx

Axial skeleton

Vertebral column

List of human anatomical features

Sacrum

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	Lumbar Degenerative Disk Disease - DynoMed.com (Site not responding. Last check: 2007-11-03)
		The cervical vertebrae are the seven vertebrae that form the upper part of your spine, between the skull and the chest.
		The thoracic vertebrae are the 12 bones between your neck and your lower back. Thoracic vertebrae have cup-shaped surfaces called facets, in which the ribs rest and connect to the spine. These ‘joints’ help the ribs to move up and down during breathing.
		The lumbar vertebrae are the five largest and strongest of all vertebrae. They are found in your lower back between the chest and hips. The strong muscles of the back are attached to the lumbar vertebrae.
	www.dynomed.com /encyclopedia/encyclopedia/spine/Lumbar_Degenerative_Disk_Disease.html (1236 words)

	Lumbar vertebrae -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-03)
		The lumbar (One of the bony segments of the spinal column) vertebrae are the largest segments of the movable part of the vertebral column, and can be distinguished by the absence of a foramen (hole) in the transverse process, and by the absence of facets on the sides of the body.
		The transverse processes are long, slender, and horizontal in the upper three lumbar vertebrae; they incline a little upward in the lower two.
		In the upper three vertebrae they arise from the junctions of the pedicles and laminae, but in the lower two they are set farther forward and spring from the pedicles and posterior parts of the bodies.
	www.absoluteastronomy.com /encyclopedia/L/Lu/Lumbar_vertebrae.htm (441 words)

	Lumbar Puncture Glossary of Terms with Definitions on MedicineNet.com
		Lumbar: Referring to the 5 lumbar vertebrae which are situated below the thoracic vertebrae and above the sacral vertebrae in the spinal column.
		Lumbar puncture: A lumbar puncture or "LP" is a procedure whereby spinal fluid is removed from the spinal canal for the purpose of diagnostic testing.
		The lumbar vertebrae are situated between the thoracic vertebrae and the sacral vertebrae in the spinal column.
	www.medicinenet.com /lumbar_puncture/glossary.htm (1600 words)

	Lumbar vertebrae - Wikipedia, the free encyclopedia
		The vertebral body of each lumbar vertebra is large, wider from side to side than from front to back, and a little thicker in front than in back.
		In the upper three vertebrae they arise from the junctions of the pedicles and laminae, but in the lower two they are set farther forward and spring from the pedicles and posterior parts of the vertebral bodies.
		Of the three tubercles noticed in connection with the transverse processes of the lower thoracic vertebrae, the superior one is connected in the lumbar region with the back part of the superior articular process, and is named the mammillary process.
	en.wikipedia.org /wiki/Lumbar_vertebrae (518 words)

	Lumbar Canal Stenosis
		The spinal column, or the vertebrae, consists of 24 separate bones along with the fused bones of the sacrum and coccyx.
		The lumbar vertebrae are under constant pressure from the weight of the upper body.
		Lumbar canal stenosis is the narrowing of the spinal canal or the tunnels through which nerves and other structures communicate with that canal.
	www.clevelandclinic.org /health/health-info/docs/0200/0251.asp?index=4873 (824 words)

	[No title]
		A typical vertebra (by convention thoracic or upper lumbar) consists of a body (anterior) and a vertebral arch (posterior) surrounding the vertebral canal (houses spinal cord).
		Thoracic vertebrae (12) ‑ bodies increase in size in rostral‑caudal sequence; body is heart shaped; have costal facets on bodies and transverse processes for attachments of heads and tubercles of ribs; spinous processes are long and inclined posteriorly and inferiorly; articular processes are in a coronal plane.
		Lumbar vertebrae (5) ‑ large bodies, pedicles, laminae and transverse processes; articular facets are oriented in a sagittal plane.
	musom.marshall.edu /anatomy/grosshom/z_vertebral_column.htm (873 words)

	Lumbar Facet -- Recommendations and Resources (Site not responding. Last check: 2007-11-03)
		In anatomy, lumbar is an adjective that means of or pertaining to the abdominal segment of the torso, between the diaphragm and the sacrum (pelvis).
		In performing a lumbar puncture (in an adult), first the patient is usually placed in a left (or right) lateral position with his/her neck bent in full flexion and knees bent in full flexion up to his/her chest, approximating a fetal position as much as possible.
		The introduction states that the lumbar vertebrae "can be distinguished by the absence of a foramen (hole) in the transverse process, and by the absence of facets on the sides of the body", but it does not make clear from ''what'' they can be thus distinguished.
	www.becomingapediatrician.com /health/89/lumbar-facet.html (1107 words)

	Spine - Ankylosing Spondylitis
		The anterior tubercles on the sixth cervical vertebra are particularly large and are known as the carotid tubercles.
		The atlas vertebra, in turn rests upon the axis vertebra, which is the second of the cervical vertebra in the spine, with the articulation between these two vertebra occurring at lateral articular surfaces and an unique juncture between a concave facet (on the atlas) and an upward-protruding structure on the axis called a dens.
		The lumbar vertebrae feature no facets on the body or transverse processes (as the thoracic vertebrae have) and the bodies of the lumbar vertebrae are much larger than those of the cervical or thoracic vertebrae.
	www.nass.co.uk /spine.htm (1374 words)

	Lumbar Disc Herniation, HNP, Dr. Jho's Lumbar Disc Surgery via a Tiny Trocar
		The cauda equina is the main spinal nerve bundle passing in the lumbar spinal canal.
		This endoscopic lumbar discectomy is different from other percutaneous endoscopic discectomies in that the conventional classic disc operation is performed under endoscopic visualization through a much smaller skin incision than with conventional microscopic discectomy.
		Usually, the remaining disc between the vertebrae is not removed unless recurrent disc herniation is anticipated due to a large defect at the annulus (the disc envelope).
	drjho.com /lumbar_disc_surgery.htm (1967 words)

	AANOS
		In this study, 1,000 lumbar spine AP view x-rays were interpreted by 3 separate physicians and their conclusions in diagnosing the conditions of facet asymmetry, spina bifida occulta and transitional vertebrae were recorded.
		In the present study, a transitional vertebrae is defined as a vertebrae that presents with a distinctive enlargement of the transverse processes with or without fusion of the processes to the sacrum.
		Transitional vertebrae have been linked by some doctors to a clinical entity consisting of low back pain, with or with-out sciatica, which is associated with a disc herniation at the vertebral level craniad to the sacral articulation (Bertolotti's syndrome).
	www.aanos.org /spinabifida&backache.html (2408 words)

	II. Osteology. 3a. 3. The Lumbar Vertebræ. Gray, Henry. 1918. Anatomy of the Human Body.
		The former are wider apart than the latter, since in the articulated column the inferior articular processes are embraced by the superior processes of the subjacent vertebra.
		The transverse processes are long, slender, and horizontal in the upper three lumbar vertebræ;; they incline a little upward in the lower two.
		In the upper three vertebræ; they arise from the junctions of the pedicles and laminæ, but in the lower two they are set farther forward and spring from the pedicles and posterior parts of the bodies.
	www.bartleby.com /107/23.html (371 words)

	LOW BACK PAIN - ANATOMY
		Because the lumbar vertebrae are located between the pelvis and upper torso, the degree of stresses endured by the lumbar spine are great.
		The lumbar discs connect adjacent lumbar vertebrae to one another and cushion the spine as well as permit motion between the individual vertebrae.
		Disc herniations in the lumbar spine are the most common causes of "sciatica", meaning pain running down the back of the leg in the area of the sciatic nerve.
	www.dcdoctor.com /pages/rightpages_healthconditions/lowbackpain/lbp_anatomy.html (624 words)

	Chapter 17 On the Lumbar Vertebrae
		The first and fifth lumbar vertebrae have shorter transverse processes than the middle ones (this is shown in the first skeleton).
		Ascending obliquely from here and becoming fleshy first in the lumbar region, it is inserted into all the acute vertebral processes on its side and ends at the upper extremity of its insertion into the vertebra situated immediately beneath the vertebra which is supported at both ends.
		This is because more lumbar vertebrae of monkeys have this process, which is always more prominent and extends farther from the vertebrae, the closer these vertebrae are to the vertebra which is supported at both ends, and the stronger the insertion the muscle we are talking about makes into them.
	vesalius.northwestern.edu /chapters/FA.1.17.html (1812 words)

	Cervical Vertebrae Overview (Site not responding. Last check: 2007-11-03)
		The next 12 are the thoracic vertebrae which articulate with the 12 pairs of ribs.
		The last 5 vertebrae are the lumbar vertebrae.
		The vertebra on the right (C7) has a prominent nonbifid spinous process that can be felt at the base of the neck.
	www.gwc.maricopa.edu /class/bio201/vert/cerv.htm (120 words)

	Lordosis: Assessment & Care
		The degree of lumbar curve is most accurately expressed by the relationship between the bodies of the vertebrae, and is most accurately visualized on X-ray.
		In assessing lumbar curve the orientation of the thorax is not to be considered.
		Bony landmarks to locate the lumbar vertebrae are, the spinous process of L5 sits at or below the level of the illiac crests, and the 12th ribs connect to the 12th Thoracic vertebra.
	jeffreyburch.com /home/jb1/page/105/45 (2434 words)

	Munson Healthcare Orthopedics: Scoliosis Treatment
		The column is grouped into three sections of vertebrae: the cervical vertebrae are the five spinal bones that support the neck; the thoracic vertebrae are the twelve spinal bones that connect to the rib cage; and the lumbar vertebrae are the five lowest and largest bones of the spinal column.
		Below the lumbar region is the sacrum, a shield-shaped bony structure that connects with the pelvis at the sacroiliac joints.
		Vertebrae in the spinal column are separated from each other by small cushions of cartilage known as intervertebral discs.
	www.healthyfuturesonline.org /clinical_svcs/orthopedics/services/ortho_scoliosis.php (1838 words)

	University of Maryland Spine Center: Anatomy and Causes (Site not responding. Last check: 2007-11-03)
		The vertebrae in the lumbar spine area are the largest of the entire spine, so the lumbar spinal canal is larger than in the cervical or thoracic parts of the spine.
		Unlike the rest of the spine, there are special openings in each vertebra in the cervical spine for the arteries (blood vessels that carry blood away from the heart), as well as the spinal canal that carries the spinal cord.
		Two vertebrae in the cervical spine, the atlas and the axis, differ from the other vertebrae because they are designed specifically for rotation.
	www.umm.edu /spinecenter/anatomy (2762 words)

	[No title]
		Its superior articular facets articulate with the occipital condyles of the skull and are oriented in a roughly parasagittal plane.
		Lumbar vertebrae are characterized by massive bodies and robust spinous and transverse processes.
		In the lumbar region, muscle fibers arise from the robust lumbar aponeurosis and in the lower thoracic regions the erector spinae divides into three longitudinal columns of muscle.
	www.emory.edu /ANATOMY/AnatomyManual/back.html (2141 words)

	Herniated Lumbar Disc \| Mayfield Clinic
		Most herniated discs occur in the lumbar section of the spine, where nerves from the spinal cord exit between the lumbar vertebrae and then join together again to form the sciatic nerve, which runs down your leg.
		Lumbar disc herniation is one of the most common causes of lower back pain associated with leg pain, and occurs 15 times more often than cervical (neck) disc herniation.
		vertebra: (plural vertebrae): one of 33 bones that form the spinal column, they are divided into 7 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 4 coccygeal.
	www.mayfieldclinic.com /PE-HLDisc.htm (2398 words)

	Monterey Spine - Spinal Anatomy
		Below the thoracic vertebrae are the five lumbar vertebrae, and below that is the sacrum.
		Below the lumbar spine area is a series of fused bones known as the sacrum.
		Each rounded vertebra body has pedicles and laminae, facet joints, and the bony transverse and spinous processes, which are the narrow, finger-like spikes pointing out from the sides and back of the vertebra.
	www.montereyspine.com /e_anatomy.html (883 words)

	Cervial, Thoracic and Lumbar Vertebrae
		In the upper cervical vertebrae, each transverse process is pierced by a hole through which the vertebral artery passes.
		The first cervical vertebra, known as the atlas, has no body; the body is replaced by an arch of bone enclosing a depression.
		On the transverse processes of the thoracic vertebrae are special articulating surfaces for the ribs; (in mammals only thoracic vertebrae carry the ribs) the spinous processes, which are long, project downward and overlap each other.
	library.thinkquest.org /10030/cervial.htm (183 words)

	The Lumbar Spine
		Lumbar pertains to the loins, and these five lumbar vertebrae are the most substantial in the spinal cavity.
		The vertebra are numbered from one to five and are labeled L1, L2, L3 etc. from the higher bones to the lower.
		The motion is divided between the five motion segments in the lumbar spine, although a disproportionate amount of the motion is at L4-L5 (lumbar segment 4 and 5) and L3-L4 (lumbar segment 3 and 4).
	www.becomehealthynow.com /article/bodyspine/804 (445 words)

	Spinal abnormalities rarely cause back problems
		Vertebrae in the cervical, thoracic and lumbar spine
		Having one extra lumbar vertebra provides no advantage or disadvantage to the individual and is rarely a cause of back problems, but it can create some confusion.
		Patients are sometimes told that a spinal anomaly—such as a sixth lumbar vertebrae or an extra sacral bone—has been found on an x-ray and is causing their back problems.
	www.spine-health.com /topics/anat/confusion/confusion04.html (512 words)

	Dallas Orthopedic Center
		Discs are the pads between the vertebrae of the spine.
		The discs between the lower lumbar vertebrae are the most commonly injured because they support the weight of the entire upper body.
		The L5-S1 disc is between the 5th lumbar and 1st sacral bones.
	www.leadingmd.com /spine_lumbarDisc_doc/overview.asp (762 words)

	Human Vertebrae Models
		Consisting of the 12 thoracic vertebrae with intervertebral discs, thoracic nerves and spinal cord.
		Consisting of the 5 lumbar vertebrae with intervertebral discs, sacrum with flap, coccyx, spinal nerves and spinal cord.
		2 lumbar vertebrae with spinal nerves, spinal cord and 2 replaceable dorso-lateral prolapsed discs between the 4th and 5th lumbar vertebrae.
	www.kappamedical.com /vertebra_models.htm (197 words)

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