Lecture 1

Question 2

1. What forms the neural tube?
2. Which portion of the tube grows fastest?
3. Which portion will become the brain?
4. Which portion will become the spinal cord?

Answer 2

1. Neuroectodern
2. Anterior portion grows more than posterior portion
3. Anterior portion becomes brain
4. Posterior (caudal) portion becomes spinal cord

Question 3

What are the adult brain derivatives of the telencephalon?

Answer 3

Cerebrum and Rhinencephalon

Question 4

Name these GENERAL parts. (Hint: not the specific name, just what the structure or area is called)

Answer 4

1. longitudinal fissure
2. sulcus
3. gyrus
4. cerebral cortex
5. sulcus
6. gyrus

Question 5

Name the cerebral cortex landmarks

Answer 5

1. suprasylvian gyrus
2. occipital gyrus
3. pseudosylvian fissure
4. sylvian gyrus
5. ectosylvian gyrus

Question 6

Name the cerebral landmarks

Answer 6

1. cruciate sulcus
2. precruciate gyrus
3. postcruciate gyrus

Question 7

Name the cerebral lobe

Answer 7

Parietal Lobe

Question 8

Name the cerebral lobes

Answer 8

1. Frontal lobe
2. parietal lobe
3. occipital lobe
4. temporal lobe

Question 9

What are the borders of the frontal lobe?

You’re doing great guys!

Answer 9

cruciate sulcus, postcruciate gyrus and everything rostral

Question 10

What are the borders of the temporal lobe?

Answer 10

sylvian gyrus and ectosylvian gyrus

Question 11

What are the borders of the parietal lobe?

Answer 11

Rostral border is postcruciate g., caudal border is straight up (dorsal) from caudal end of pseudosylvian fissure

Question 12

Name the primary cortical areas.

Answer 12

Somesthetic

Auditory

Motor

Visual

Question 13

Which gyri and lobes are associated with the primary somesthetic area?

Answer 13

postcruciate gyrus (frontal lobe), rostral suprasylvian gyrus (frontal lobe), ectosylvian gyrus (temporal lobe)

Question 14

Which gyri and lobes are associated with the primary motor area?

Answer 14

postcruciate gyrus (frontal lobe), rostral suprasyvlain gyrus (frontal lobe)

Question 15

Which gyri and lobes are associated with the primary auditory area?

Answer 15

Ectosylvian gyrus (temporal lobe)

Question 16

Which gyri and lobes are associated with the primary occipital area?

Answer 16

Occipital gyrus, occipital lobe

Question 17

1. Which cortical lobe does not contain a primary cortical area?
2. What does this lobe contain?

Answer 17

1. Piriform lobe (I’ve also seen it spelled pyriform… not sure which is right)
2. Contains olfactory information

Question 18

Label the parts

Answer 18

1. cruciate sulcus
2. ansate sulcus
3. primary somesthetic area I
4. primary visual area
5. suprasylvian sulcus (and primary auditory area - oops)
6. pseudosylvian fissure
7. primary somesthetic area II
8. primary motor area

Question 19

Name the types of cells in gray matter.

Answer 19

Cell bodies

Dendrites

Axons (the part very close to the cell body)

Glia

Capillaries

*cell bodies are the primary distinguishing factor between gray matter and white matter*

Question 20

Name the types of cells/structures in white matter?

Answer 20

Axons

Glia

Capillaries

*note that there are NO neuronal cell bodies within white matter - main difference between white matter and gray matter*

Question 21

What structure is the caudate nucleus associated with and what type of matter is it?

Answer 21

Caudate nucleus is part of the cerebral cortex, and is gray matter.

Question 22

Corpus Callosum

Answer 22

Unibrow of the lady

Axons

Connects functional areas of R and L hemispheres

Question 23

Internal Capsule

Answer 23

Cheeks of the lady

Cerebral afferents and efferents

Carry information to and from cerebrum

Question 24

Unipolar Nuerons

Answer 24

One process at the cell body

Sensory neurons

Question 25

Bipolar Neurons

Answer 25

Two processes at the cell body Sensory Neurons

Question 26

Multipolar Neurons

Answer 26

Many processes at the cell body Sensory or motor neurons

Question 27

Label the meninges

Answer 27

1. Dura Mater 2. Arachnoid 3. Subarachnoid space 4. Pia Mater

Question 28

Which two layers of meninges make up the Leptomenengies?

Answer 28

Arachnoid + Pia Mater

Question 29

Define Falx cerebri

Answer 29

Meninges that cover the external aspect of the brain

Question 30

Define Tantorium cerebelli

Answer 30

Meninges in the space separating the cerebrum from the cerebellum

Question 31

Dorsal Sagittal Sinus

Answer 31

Lies within the falx cerebri. It receives numerous arachnoid villi of the meninges and tributary veins from the cerebral hemispheres. Very important for the circulation of CSF from the

Question 32

Label the structures

Answer 32

1. Dorsal sagittal sinus 2. Arachnoid villus 3. Dura Mater 4. arachnoid 5. subarachnoid space 6. pia mater