This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2018, Subject name: Orthopaedics
Normal Curvature seen in Lumbar 
Select and explain. 
A. Lordosis, B. Kyphosis, C. Scoliosis, D. Recurvatum
A: Lordosis
Answer: A: Lordosis 
Explanation: * Normal curvature of spine:Lordosis(concavity) ? cervical spine, lumbar spineKyphosis (convexity) ? thoracic & sacral spine * Causes of | lumbar lordosis: (excessive posterior concavity)- Spondylolisthesis- Obesity / Osteoporosis- Achondroplasia- Postural* Scoliosis -abnormal lateral curvature of veebral column * Kyphosis - abnormal curvature of the veebral column in the thoracic region causing "hunchback" deformity.