lumbar flexure

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a bend or fold.
caudal flexure the bend at the aboral end of the embryo.
cephalic flexure the curve in the mid-brain of the embryo.
cervical flexure a bend in the neural tube of the embryo at the junction of the brain and spinal cord.
colic flexure, left the angular junction of the transverse and descending colon.
colic flexure, right the angular junction of the ascending and transverse colon.
dorsal flexure one of the flexures in the mid-dorsal region of the embryo.
duodenojejunal flexure the bend at the junction of the duodenum and jejunum.
hepatic flexure right colic flexure.
lumbar flexure the ventral curvature in the lumbar region of the back.
mesencephalic flexure a bend in the neural tube of the embryo at the level of the mesencephalon, or mid-brain.
pontine flexure a flexure of the hindbrain in the embryo.
sacral flexure caudal flexure.
sigmoid flexure sigmoid colon.
splenic flexure left colic flexure.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

lumbar lordosis

the normal, anteriorly convex curvature of the lumbar segment of the vertebral column; lumbar lordosis is a secondary curvature of the vertebral column, acquired postnatally as the upright posture is assumed when one learns to walk.
Farlex Partner Medical Dictionary © Farlex 2012

lum·bar flex·ure

(lŭm'bahr flek'shŭr)
The normal ventral curve of the vertebral column in the lumbar region.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012