Gross Anatomy of the Spinal Cord

What are the sections of the vertebral column?
Cervical, thoracic, lumbar and sacral
1 of 8
How many vertebrae in each section of the column?
7 cervical, 12 thoracic, 5 lumbar, 5 sacral and 4 coccygeal. 33 altogether. The 5 sacral vertebrae are fused to form the sacrum and the 4 coccygeal vertebrae are fused to form the coccyx
2 of 8
How many spinal nerves?
31 altogether. 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal
3 of 8
Medullary cone
The tapered, lower end of the spinal cord. It occurs near L1 and L2, occasionally lower
4 of 8
Cauda equina
A bundle of spinal nerves and spinal nerve rootlets, consisting of L2-L5 nerve pairs, S1-S5 nerve pairs, and the coccygeal nerve
5 of 8
Meninges
Three membranes that envelop the brain and spinal cord - dura mater, arachnoid mater and pia mater
6 of 8
Cerebrospinal fluid
Fluid that is located in the subarachnoid space. It circulates nutrients and chemicals filtered from the blood and removes waste products from the brain. Also functions as a shock absorber from the CNS
7 of 8
Nerve plexus
Composed of afferent and efferent fibres that arise from the merging of the anterior rami of spinal nerves and blood vessels
8 of 8

Other cards in this set

Card 2

Front

7 cervical, 12 thoracic, 5 lumbar, 5 sacral and 4 coccygeal. 33 altogether. The 5 sacral vertebrae are fused to form the sacrum and the 4 coccygeal vertebrae are fused to form the coccyx

Back

How many vertebrae in each section of the column?

Card 3

Front

31 altogether. 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal

Back

Preview of the back of card 3

Card 4

Front

The tapered, lower end of the spinal cord. It occurs near L1 and L2, occasionally lower

Back

Preview of the back of card 4

Card 5

Front

A bundle of spinal nerves and spinal nerve rootlets, consisting of L2-L5 nerve pairs, S1-S5 nerve pairs, and the coccygeal nerve

Back

Preview of the back of card 5
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