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Questions and Answers
Why does the hypothalamus have a higher degree of vascularity compared to other phylogenetically older brain structures?
Why does the hypothalamus have a higher degree of vascularity compared to other phylogenetically older brain structures?
- To compensate for its lack of blood vessels in the surrounding areas
- Due to its smaller size compared to other brain structures
- As a result of its increased susceptibility to emboli
- Because of its crucial role in functions like thermoregulation (correct)
Which part of the spinal cord is primarily supplied by radial arteries?
Which part of the spinal cord is primarily supplied by radial arteries?
- Grey matter
- Entire spinal cord
- White matter
- Outer regions of grey matter (correct)
Why are arterial anastomoses more profuse on the surface of the brain compared to deep arteries?
Why are arterial anastomoses more profuse on the surface of the brain compared to deep arteries?
- To reduce the risk of thrombi formation
- To increase vascularity in deep brain structures
- To prevent total obstruction
- To provide alternative channels for blood flow (correct)
What makes blockage of deep arteries more catastrophic compared to blockage of surface arteries?
What makes blockage of deep arteries more catastrophic compared to blockage of surface arteries?
Why are large pulsating arteries absent below the neuraxis surface?
Why are large pulsating arteries absent below the neuraxis surface?
Which layer of the meninges adheres tightly to the periosteum lining within the cranial cavity?
Which layer of the meninges adheres tightly to the periosteum lining within the cranial cavity?
Where does the vein mentioned in the text terminate at one end?
Where does the vein mentioned in the text terminate at one end?
What is the principal drainage of the connecting sinus?
What is the principal drainage of the connecting sinus?
What is a characteristic of cerebral veins mentioned in the text?
What is a characteristic of cerebral veins mentioned in the text?
What facilitates alternative channels for blood flow if a cerebral vein is obstructed?
What facilitates alternative channels for blood flow if a cerebral vein is obstructed?
Where are the longitudinal spinal sinuses located?
Where are the longitudinal spinal sinuses located?
What is notable about the valves in the longitudinal spinal sinuses?
What is notable about the valves in the longitudinal spinal sinuses?
What is the controversial role of arachnoid granulations in cerebrospinal fluid (CSF) absorption?
What is the controversial role of arachnoid granulations in cerebrospinal fluid (CSF) absorption?
Which statement about the drainage of cerebrospinal fluid (CSF) is accurate?
Which statement about the drainage of cerebrospinal fluid (CSF) is accurate?
What is the function of cerebrospinal fluid (CSF) related to mechanical support?
What is the function of cerebrospinal fluid (CSF) related to mechanical support?
Where are the main sites for cerebrospinal fluid (CSF) collection in live animals?
Where are the main sites for cerebrospinal fluid (CSF) collection in live animals?
Why is the naming and location of the cistern at the atlanto-occipital site confusing?
Why is the naming and location of the cistern at the atlanto-occipital site confusing?
What distinguishes the composition of cerebrospinal fluid (CSF) from blood plasma?
What distinguishes the composition of cerebrospinal fluid (CSF) from blood plasma?
What is the function of the cervical and lumbar enlargements in the spinal cord?
What is the function of the cervical and lumbar enlargements in the spinal cord?
Where does the spinal cord terminate approximately in humans?
Where does the spinal cord terminate approximately in humans?
What does the filum terminale consist of?
What does the filum terminale consist of?
What structure resembles a horse's tail and includes sacral and caudal nerves?
What structure resembles a horse's tail and includes sacral and caudal nerves?
What anatomical feature is formed by the convergence of the filum terminale with the dura mater?
What anatomical feature is formed by the convergence of the filum terminale with the dura mater?
Around which vertebral segment does the termination point of the dural tube vary?
Around which vertebral segment does the termination point of the dural tube vary?
Which tract is NOT part of the ascending tracts in the lateral funiculus of the cervical spinal cord?
Which tract is NOT part of the ascending tracts in the lateral funiculus of the cervical spinal cord?
Which descending tract is found in the ventral funiculus of the cervical spinal cord?
Which descending tract is found in the ventral funiculus of the cervical spinal cord?
Which of the following is a short ascending and descending intersegmental fiber of the fasciculus proprius?
Which of the following is a short ascending and descending intersegmental fiber of the fasciculus proprius?
Which of these tracts is classified as an ascending tract in the lateral funiculus of the cervical spinal cord?
Which of these tracts is classified as an ascending tract in the lateral funiculus of the cervical spinal cord?
Which of these tracts is part of the descending tracts in the lateral funiculus of the cervical spinal cord?
Which of these tracts is part of the descending tracts in the lateral funiculus of the cervical spinal cord?
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