Lecture 1 Flashcards
(30 cards)
CNS Components
Brain and spinal cord
PNS components
Nerves and ganglia
Vertebral column
7 Cervical 12 Thoracic 5 Lumbar 5 Sacral 3-4 Coccygeal
- Spinal Process
- Transverse Process
- Pedicle
- Vertebral Foramen
- Body
- Lamina
Where does the spinal cord end? and what is the name of the
L1/L2 Conus medullaris (inferior termination of the spinal cord)
White and Grey matter in the spinal cord
White is the outer and the grey is the inner forming the anterior and posterior horns
Cervical and lumbar enlargement occurs because?
Cervical innervation to the UE
Lumbar innervation to the LE
The meninges (DAP)
Dura, Arachnoid and Pia
Epidural region can be found where?.
a real space containing fat prior to the dura
Subdural space is a ____ space which means
Potential space… pathologically can be filled w/ blood or something.
What is important about the pia matter
It is connected to the spinal cord… Adherent
Conus medullaris is the where the _____ ends
Spinal cord
the dura sac ends at the ____
S2 Vertebral level
Interior vertebral notch and superior vertebral notch
Inferior is hooked shaped
superior is check mark shaped
Posterior horn ____ sensory information
Receives
Smaller horn
Anterior horn ____ information
Carries motor information away from CNS
Spinal nerves contains ____ and ____ information
Motor and sensory information
Myotome define
segment of SKM receiving motor innervation
Dermatome define
segment of skin receiving sensory innervation
where do the C1 spinal nerve emerge from
Between the skull and C1 Vertebra
Nerves C2-C7 emerges where?
Superior to the corresponding vertebra
C8 nerve emerges from
inferior to C7
Nerves T1 and on emerge from
inferior to the corresponding vertebrae
Why does the C8 Spinal cord segment and every segment more super to vertebral level?
the Spinal cord does not extend the full length of the column and need to elongate and become more oblique.
