Flashcards
Cross Section
Cards in this deck (9)
- 1—Midbrain - level of superior colliculus
paramedian branches of basilar & P1:
-ipsilateral paralysis of most eye muscles, dilation of pupil, double vision (oculomotor nucleus)
- contralateral loss of motor function (CSp)
quadrigeminal & medial posterior choroidal arteries (P2):
-contralateral loss of motor function (CSp)
-contralateral loss of proprioception and discriminative touch (ML)
-contralateral loss of pain, thermal, and crude touch sensations (ALS)
-loss of spatial/visual function (SC)
- 2—caudal pons
paramedian: - contralateral loss of proprioception and discriminative touch (ML)
- contralateral loss of motor function (CSp)
- ipsilateral paralysis of eye muscles/weakness in lateral rectus muscle of eye (abducens nu)
- loss of motor function (pontine nuclei/fibers)
short circumferential:
-loss of motor function (pontine nuclei/fibers) - maybe ALS
long circumferential & AICA:
- loss of motor function (restiform body, middle cerebellar peduncle)
- vertigo, loss of balance (M,L,S vestibular Nu)
- ipsilateral weakness of facial muscles (facial motor Nu)
-contralateral loss of pain, thermal, and crude touch sensations from body (ALS)
-ipsilateral loss of pain, thermal, and crude touch sensations from head, maybe loss of taste (Spinal Trigeminal Nu)
- 3—mid pons:
paramedian:
- contralateral loss of proprioception and discriminative touch (ML)
- contralateral loss of motor function (CSp)
- loss of motor function (pontine nuclei/fibers)
short circumferential:
- contralateral loss of motor function (CSp)
- loss of motor function (pontine nuclei/fibers, middle cerebellar peduncle) - maybe ALS
long circumferential & AICA:
- loss of motor function (middle cerebellar peduncle)
-contralateral loss of pain, thermal, and crude touch sensations from body (ALS)
-weakness of mastication muscles (Trigeminal motor nucleus)
-ipsilateral loss of discriminative touch from face and oral cavity (principal sensory trigeminal Nu)
- contralateral loss of proprioception and discriminative touch (ML part)
long circumferential & superior cerebellar artery:
-ipsilateral loss of proprioception from masticatory and extraocular muscles (mesencephalic Nu)
-loss of motor function (superior cerebellar peduncle)
- 4—rostral pons:
paramedian:
- contralateral loss of proprioception and discriminative touch (ML)
- contralateral loss of motor function (CSp)
- loss of motor function (pontine nuclei/fibers)
short circumferential: not much
long circumferential & superior cerebellar:
- contralateral loss of pain, thermal, and crude touch sensations from body (ALS)
-contralateral loss of proprioception and discriminative touch (ML)
-ipsilateral loss of proprioception from masticatory and extraocular muscles (mesencephalic Nu)
-loss of motor function (superior cerebellar peduncle)
-contralateral loss of eye movement down and out (trochlear NERVE)
- 5—midbrain level of inferior colliculus:
paramedian & P1:
-loss of motor function (superior cerebellar peduncle)
-contralateral loss of eye movement down and out (trochlear nucleus)-contralateral loss of motor function (CSp)
short circumferential/lateral of quad & medial posterior choroidal arteries:
-contralateral loss of motor function (CSp)
-contralateral loss of proprioception and discriminative touch (ML)
-contralateral loss of pain, thermal, and crude touch sensations (ALS)
superior cerebellar arteries:
-loss of auditory sensation (inferior colliculus)
- 6—PyDec medulla:
anterior spinal artery:
- contralateral loss of motor function (CSp)
- ipsilateral neck weakness? (accessory nucleus)
posterior spinal artery:
- ipsilateral loss of proprioception and discriminative touch (PC)
-ipsilateral loss of pain, thermal, and crude touch sensations from head, maybe loss of taste (spinal trigeminal Nu)
vertebral artery:
-ipsilateral neck weakness? (accessory nucleus)
-contralateral loss of pain, thermal, and crude touch sensations from body (ALS) - 7—SenDec medulla:
anterior spinal artery:
- contralateral motor loss (CSp)
- contralateral loss of proprioception and discriminative touch (ML)
- ipsilateral tongue deviation (hypoglossal Nu)
- ipsilateral heart, gut, dysphagia, dysarthria (Dorsal motor vagal Nu)
- ipsilateral loss of visceral sensations and taste from tongue (solitary Nu)
posterior spinal artery:
-ipsilateral loss of proprioception and discriminative touch (PC)
vertebral artery:
-maybe contralateral loss of pain, thermal, and crude touch sensations from body (ALS)
- motor function? (olive)
PICA:
-ipsilateral loss of pain, thermal, and crude touch sensations from head, maybe loss of taste (spinal trigeminal Nu)
- maybe contralateral loss of pain, thermal, and crude touch sensations from body (ALS)
- 8—mid medulla:
anterior spinal artery:
- contralateral motor loss (CSp)
- contralateral loss of proprioception and discriminative touch (ML)
- ipsilateral tongue deviation (hypoglossal Nu)
PICA:
-contralateral loss of pain, thermal, and crude touch sensations from body (ALS)
-ipsilateral loss of pain, thermal, and crude touch sensations from head, maybe loss of taste (spinal trigeminal Nu)
-loss of motor function? (restiform body)
- ipsilateral heart, gut, dysphagia, dysarthria (Dorsal motor vagal Nu)
- ipsilateral loss of visceral sensations and taste from tongue (solitary Nu)
-vertigo, loss of balance (I,M Vestibular Nu)
vertebral:
- motor function? (olive)
- 9—rostral medulla:
PICA:
-contralateral loss of pain, thermal, and crude touch sensations from body (ALS)
-ipsilateral loss of pain, thermal, and crude touch sensations from head, maybe loss of taste (spinal trigeminal Nu)
-loss of motor function? (restiform body)
- ipsilateral loss of visceral sensations and taste from tongue (solitary Nu)
-vertigo, loss of balance (I,M Vestibular Nu)
- loss of salivation/secretomotor (Inf. Salivatory Nu)
vertebral and paramedian:
- contralateral loss of motor (CSp)
- contralateral loss of proprioception and discriminative touch (ML)
AICA:
- ipsilateral loss of hearing (A,P cochlear Nu)
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- Flashcards on Cross Section, created by M Price on 24/08/2018.
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- M Price
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