MCQsOnline - Online Collection of MCQs of Medical PG Entrance Exams.

MCQ stands for Multiple Choice Questions sometimes called as Objective type questions. Here we discuss the Old Question Papers, High Yield Points and Strategies with respect to the Indian Medical Post Graduate PG Entrance Exams like AIIMS,AIPG, JIPMER, CMC Vellore, PGI Chandigarh, UPSC, TNPSC, State PG Exams like Tamil Nadu PG (TN PG), Delhi PG, UPPG, Tamilnadu PG (TNPG), Karnataka PG, MAHE, COMED-K etc.

Target PG

PG Preparation

Related Portals

Search This Site

If you cannot locate what you want to find, please search using the box given below

Sunday, January 06, 2008

In adults, the spinal cord normally ends at

002. In adults, the spinal cord normally ends at:

1. Lower border of L1.

2. Lower border of L3.

3. Lower border of S1.

4. Lower border of L5.

Answer

1. Lower border of L1

Reference

Gray 38th Edition Page 975

Quality

Spotter

Status

Repeat

QTDF

All books

Discussion

The spinal cord is an elongated, approximately cylindrical part of the CNS, occupying the superior two-thirds of the vertebral canal. Its average length in European males is 45 cm, its weight about 30 g.

Explanation

It extends from the upper border of the atlas to the junction between the first and second lumbar vertebrae, the lower level varying, with some correlation with length of trunk, especially in females

Comments

The termination may be as high as the caudal third of the twelfth thoracic vertebra or as low as the disc between the second and third lumbar vertebra; its position rises slightly in vertebral flexion.

Tips

By 2 months postnatally the conus medullaris has usually reached its permanent position at the level of the body of the first lumbar vertebra (L1)

No comments:

Post a Comment