11 Spinal cord and spinal nerve

11 Spinal cord and spinal nerve - Spinal Cord and Spinal...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Spinal Cord-1 Spinal Cord and Spinal Nerves Filum terminale Cauda equina Spinal nerves S1 L1 T1 C1 Lateral view Sacral and coccygeal regions Lumbar region Thoracic region Cervical region
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Spinal Cord-2 Spinal Cord Communication link between the brain and the PNS (below the head) Integrate information and produce responses Extends from the foramen magnum to L2 Composed of cervical, thoracic, lumbar, and sacral segments 31 pairs of spinal nerves
Background image of page 2
Spinal Cord-3 Spinal Cord Posterior view Filum terminale Cauda equina Conus medullaris Coccygeal nerve Lumbosacral enlargement S1 L1 T1 Cervical enlargement C1 not uniform in diameter Two enlargements: 1. Cervical enlargement 2. Lumbosacral enlargement Conus medularis – the inferior end of the spinal cord Nerves supplying the lower limbs – exit LS enlargement – course down through vertebral canal – exit via foramina
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Spinal Cord-4 Dura mater Denticulate ligament Arachnoid mater Subarachnoid space Subdural space Pia mater Spinal nerve Meninges Most superficial – Dura mater continuous with the brain and spinal nerves Arachnoid mater – thin Pia mater – deepest layer – tight to the spinal cord Dendiculate ligaments Filum Terminale Epidural space
Background image of page 4
Spinal Cord-5 Meninges Posterior Anterior (b) Superior view Pia mater Subarachnoid space Arachnoid mater Subdural space Dura mater Fat in epidural space Periosteum Body of vertebra Spinal cord Spinous process of vertebra Denticulate ligament
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Spinal Cord-6 Cross-section of the Spinal Cord White Matter: two halves; three columns in each half Each column subdivided into nerve tracts (fasiculi) Ascending and descending tracts – myleinated axons (white matter) Posterior median sulcus White matter Dorsal root
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/03/2009 for the course KINESIOLOG 1Y03 taught by Professor Parises during the Spring '09 term at McMaster University.

Page1 / 19

11 Spinal cord and spinal nerve - Spinal Cord and Spinal...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online