Practical 6/7 Weigert Sections Flashcards by Niamh O Leary

Q

identify the weigert

A

lumbar cord
- fibre tracts are few
- large anterior and posterior horns due to lumbar plexus

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Q

1

A

fasciculus gracilis

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Q

2

A

posterior horn

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Q

3

A

anterior horn

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Q

identify weigert

A

thoracic cord
- Fibre tracts are larger
- Grey matter is scanty as no limb plexuses

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Q

1

A

fasciculus gracilis

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Q

2

A

fasciculus cuneatus
- dark tracts
- heavilty myelinated
- for fast conduction

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Q

3

A

posterior horn

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Q

4

A

anterior horn

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Q

5

A

lateral horn
- sympathetic neurons

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Q

indentify the weigert

A

cervical cord
- fibre tracts are larger
- grey matter is large
- brachial plexus
- no lateral horn

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Q

1

A

fasiculus gracilis

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Q

2

A

fasciculus cuneatus

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Q

3

A

posterior horn

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Q

4

A

anterior horn

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Q

identify weigert

A

lower/upper medulla

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Q

1

A

fasciculus gracilis terminating

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Q

2

A

nucleus gracilis

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Q

3

A

fasciculus cuneatus

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Q

4

A

nucleus cuneatus

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Q

5

A

internal arcuate fibres

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Q

6

A

medial lemniscus

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Q

7

A

spinal tract of V

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Q

8

A

spinal nucleus of V

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Q

9

A

incerior olivary nucleus

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Q

10

A

pyramid

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Q

identify the weigert

A

upper medulla

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Q

1

A

fourth ventricle

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Q

2

A

hypoglossal nucleus

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Q

3

A

dorsal motor nucleus of CN X - vagus

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Q

4

A

vestibular nuclei

Q

5

A

solitary tract (black)

Q

6

A

medial lemniscus

Q

7

A

inferior olivary nucleus (only seen on upper medulla)

Q

8

A

olivocerebellar fibres crossing to the inferior cerebellar peduncle

Q

9

A

inferior cerebellar peduncle

Q

10

A

pyramid

Q

identify weigert

A

pontomedullary junction
- shaped like bear’s head
- upper medulla on top
- part of basilar pons below

Q

1

A

vestibulocochlear nerve (hanging off bear’s ears)

Q

identify weigert

A

mid-pons

Q

1

A

massive basilar pons

Q

2

A

corticopontine, corticonuclear and corticospinal fibres descending as circular bundles

Q

3

A

transverse corticocerebellar fibres (in horizontal bundles

Q

4

A

middle cerebellar peduncle

Q

5

A

medial lemniscus (now in a horizontal position)

Q

6

A

superior cerebellar peduncle

Q

identify weigert

A

upper pons

Q

1

A

basilar pons as before

Q

2

A

medial lemniscus

Q

3

A

superior cerebellar peduncle

Q

4

A

CN IV emerging from midbrain at the top

Q

identify weigert

A

pons midbrain junciton
- midbrain on top and pons below

Q

1

A

inferior colliculus

Q

2

A

periaqeuductal grey

Q

3

A

decussation of superior cerebellar peduncles

Q

4

A

medial lemniscus

Q

5

A

basilar pons as before

Q

identify weigert

A

lower midbrain

Q

1

A

inferior colliculus

Q

2

A

periaqeuductal grey

Q

3

A

IV nucleus

Q

4

A

decussation of superior cerebellar peduncles

Q

5

A

medial lemniscus

Q

6

A

substantia nigra

Q

7

A

cerebral peduncles

Q

8

A

interpenducular fossa

Q

identify weigert

A

upper midbrain

Q

1

A

pineal gland overhanging (calcified)

Q

2

A

superior colliculus

Q

3

A

periaqueductal grey

Q

4

A

red nucleus

Q

5

A

substantia nigra

Q

6

A

cerebral peduncles

Q

7

A

interpenducular fossa

Q

8

A

pituitary stalk

Q

9

A

parts of the thalamus