Midbrain Cross-Sections

 

Links
Brainstem-1
Brainstem-5
Brainstem-2
Brainstem-6
Brainstem-3
And just for fun...
Brainstem-4

 

Midbrain Slide #1

1- Cerebral Aqueduct

2-Periaqueductal Gray

3-Crus Cerebri

4- Decussation of Superior

Cerebellar Peduncles

5- Pons

6- Substantia Nigra

7- Medial Lemniscus

8-Superior Colliculi

Sample slide questions:

1) What neurotransmitter is common in #2?

2) Where does #7 originate?

 

Midbrain Slide #2

1- Cerebral Aqueduct

2- Periaqueductal Gray

3- Substantia Nigra

4- Crus Cerebri

5- Red Nucleus

6- Lateral Geniculate

7- Medial Geniculate

8-Medial Lemniscus

9-Superior Colliculi

Sample slide questions:

1) What senory function is associated with #9?

2) What sensory function is associated with #6?

 

Midbrain Slide #3

1- Pineal Body

2- Posterior Commissure

3- Cerebral Aqueduct

4- Red Nucleus

5- Substantia Nigra

6- Mammillary Bodies

7- Crus Cerebri

8- Medial Lemniscus

Sample slide questions:

1) What descending tract begins at #4?

2) What transmitter is associated with #5?

 

 

Midbrain Slide #4

1- Pineal Body

2- Posterior Commissure

3- Cerebral Aqueduct

4- Red Nucleus

5- Substantia Nigra

6- Crus Cerebri

7- Mammillary Bodies

8- Medial Lemniscus

9- Medial Geniculate

10- Lateral Geniculate

11-Thalamus

Sample slide questions:

1) What sensory function is associated with #9?

2) Name a main fiber tract that terminates in #7?

 

Midbrain Slide #5

1-Posterior Commissure

2-Thalamus

3-Cerebral Aqueduct

4-Internal Capsule

5-Red Nucleus

6- Substantia Nigra

7- Crus Cerebri

8- Mammillary Bodies

Sample slide questions:

1) What descending fibers are found in #7?

2) Name a main target of efferents from #8.

 

 

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