Back Angiology/Neuroloy Flashcards
What branch of the subclavian A. Makes the Transverse Cervical A.?
Thyrocervical Trunk
What hole does the Vertebral A. Pass through?
The transverse foramen of the Cervical Vertebrae
How many branches of the posterior Spinal A. Are there?
2
The subclavian A. Becomes what after the clavicle?
Axilla Art.
What branch of the Axilla A. Gives rise to the Thoacodorsal A.?
Subscapular A.
The vertebral A. Can produce what three things?
- Ant./Post. Segmented Medullary A.
- Ant./Post. Vertebral Canal Branches
- Ant./Post. Radicular A.
What does the Anterior Vertebral Canal Branch supply/do?
Supplies the anterior vertebral body as well as some of the Vertebral Body bone marrow
What does the Posterior Vertebral Canal Branch supply?
The vertebral arch
What does the Anterior Radicular A. Do/supply?
Exists unless replaced by Anterior Segmental Medullary A.
Supplies the anterior roots of spinal nerves
What does the posterior radicular A. Supply/do?
Same as Ant. Radicular A.
Supplies the posterior roots of spinal N.
What does the anterior segmental medullary A. Do?
Feeds directly into anterior spinal A.
What does posterior segmental medullary A. Do
Feeds directly into posterior spinal A.
How many post. Spinal A. Are there?
2
What are the 8 paraspinal arteries that supply the vertebra and paraspinal structures
- Vertebral A
- Ascending Cervical A.
- Deep Cervical A.
- POsterior Intercostal A.
- Subcostal A.
- Lumber A.
- Iliolumbar A.
- Lateral Sacral A.
How many cervical nerves are there?
8
What is the end of the spinal cord called
The medullary cone
What are the tail fibers of the spinal cord called
Cauda equina
What will happen with a C1-3 transection?
Death
What will happen with a C4-5 transection
No function of limbs, but respiratory capable
What will happen with C6-8 transection
Loss of hand and upper limb function
What will happen with T1-9 transection
Paralysis of both lower limbs
What will happen with T10-L1 transection
Some walking allowed
What will happen with L2-3 transection
Most lower limb functions present
What is the Dura-Arachnoid interface
Potential space, if blood here = bad
What is the spinal dural sac
Long tube-shaped sheath surrounding the spinal cord lining the vertebral canal
What is the filum terminale internum
Inferior continuation of Pia Mater inferior to conus medullaris
What is the filum terminale extrenum
Pia mater plus dura mater
What is the arachnoid mater
Membranous layer that lines the spinal dural sac
What circulates in the subarachnoid space
CSF
What is the lumbar cistern
An enlargement of the subarachnoid space inferior to the conus medullaris containing the cauda equina
CSF can pool here
Where is a lumbar puncture usually performed
L3/L4 or L4/L5
The arachnoid and pia mater form the what
Leptromeninges, they form together
