NEURO EXAM 4: BLOOD SUPPLY 2025/2026
QUESTIONS WITH ANSWERS GRADED A+
Clinical S/S of Shunt Malfunction and Hydrocephalus in Infants - Disproportionately large head
size for age
Large anterior fontanel
Poor feeding
Inactivity
Downward gaze of eyes (compression of CN III nuclei)
Clinical S/S of Shunt Malfunction and Hydrocephalus in Older Children and Adults - Gait and
balance impairment
Incontinence
Headache
Clinical S/S of Meningities - Headache - intensifies with sitting/standing, head mvmt,
coughing/sneezing
Fever
Confusion
Vomiting
Neck Stiffness
Peripheral Nerve Blood Supple - Blood vessels accompany peripheral nerves
Branches pierce the epineurium
Arterioles and venules travel parallel to neuronal fascicles
Anterior spinal artery - Anterior 2/3 of spinal cord
anterior midline of spinal cord
Posterior spinal arteries - 2 posterior, medial to dorsal roots
supply posterior 1/3 of cord
, Where do the spinal arteries come from? - originate primarily form the vertebral arteries
Also 7-10 medullary arteries
Anastomose to form circle of BS around SC
Medullary arteries - branches of Vertebral, cervical, thoracic, lumbar Aa
What do the A/P medullary arteries form? - Segmental arteries
Posterior medullary Aa supplies what? - Dorsal Root ganglia
Blood Supply to Brain - 2 internal carotid Aa
2 vertebral Aa
Many branches with capillary beds and arteriovenous jnxs
Vertebral Arteries - Enter skull via foramen magnum
Form Basilar @ pontomedullary jxn (anterior pons)
3 main brainches
1. Anterior spinal
2. Posterior spinal
3. PICA
Numerous medullary Aa
PICA supplies...? - Supplies inferior cerebellum
Supplies lateral upper/rostral medulla (Wallenburg)
Branches of Basilar Aa - AICA
Sup Cerebellar Aa
Numerous pontine aa
Basilar Aa terminates as - Post Cerebral Aa
QUESTIONS WITH ANSWERS GRADED A+
Clinical S/S of Shunt Malfunction and Hydrocephalus in Infants - Disproportionately large head
size for age
Large anterior fontanel
Poor feeding
Inactivity
Downward gaze of eyes (compression of CN III nuclei)
Clinical S/S of Shunt Malfunction and Hydrocephalus in Older Children and Adults - Gait and
balance impairment
Incontinence
Headache
Clinical S/S of Meningities - Headache - intensifies with sitting/standing, head mvmt,
coughing/sneezing
Fever
Confusion
Vomiting
Neck Stiffness
Peripheral Nerve Blood Supple - Blood vessels accompany peripheral nerves
Branches pierce the epineurium
Arterioles and venules travel parallel to neuronal fascicles
Anterior spinal artery - Anterior 2/3 of spinal cord
anterior midline of spinal cord
Posterior spinal arteries - 2 posterior, medial to dorsal roots
supply posterior 1/3 of cord
, Where do the spinal arteries come from? - originate primarily form the vertebral arteries
Also 7-10 medullary arteries
Anastomose to form circle of BS around SC
Medullary arteries - branches of Vertebral, cervical, thoracic, lumbar Aa
What do the A/P medullary arteries form? - Segmental arteries
Posterior medullary Aa supplies what? - Dorsal Root ganglia
Blood Supply to Brain - 2 internal carotid Aa
2 vertebral Aa
Many branches with capillary beds and arteriovenous jnxs
Vertebral Arteries - Enter skull via foramen magnum
Form Basilar @ pontomedullary jxn (anterior pons)
3 main brainches
1. Anterior spinal
2. Posterior spinal
3. PICA
Numerous medullary Aa
PICA supplies...? - Supplies inferior cerebellum
Supplies lateral upper/rostral medulla (Wallenburg)
Branches of Basilar Aa - AICA
Sup Cerebellar Aa
Numerous pontine aa
Basilar Aa terminates as - Post Cerebral Aa
