Basic Brain Anatomy

Question 1

The four brain lobes:

Answer 1

1. frontal lobe
2. parietal lobe
3. occipital lobe
4. Temporal lobe

Question 2

Gyrus

Answer 2

Hill in the brain

Question 3

Sulcus

Answer 3

Groove in the brain

Question 4

Fissure

Answer 4

Gaps between lobes

Question 5

Broca

Answer 5

An example of localized function in the cerebrum. Lesion in part of the brain that causes disabilities

Question 6

Motor aphasia

Answer 6

If you cannot speak properly due to a lesion in broca’s area

Question 7

Sensory aphasia

Answer 7

If you do not understand language (dyslexia) due to an lesion in wernicke’s area

Question 8

Pshychopaths have low brain activity in:

Answer 8

The orbital complex, an area responsible for moral decision making

Question 9

Grey matter

Answer 9

Neurons, dendrites, axons without myelin sheet

Question 10

White matter

Answer 10

Long axons with myelin sheet

Question 11

Myelin sheats in Peripheral nervous system formed by

Answer 11

Schwann cells

Question 12

Myelin sheats in central nervous system formed by

Answer 12

Oligodendrocytes

Question 13

Glia cells (astrocytes)

Answer 13

• Form support for central nervous system
• help form blood-brain barrier
• secrete neurotrophic factors
• Take up K+ neurotransmitters
• Fill up the space not occupied by neurons or blood vessels
• 2x as many as neurons

Question 14

Microglia

Answer 14

Modified immune cells

Question 15

Choriod plexus

Answer 15

Produces CSF (cerebrospinal fluid)

Question 16

Cerebral aqueduct

Answer 16

CSF is drained through this duct

Question 17

Nissle staining

Answer 17

Neurons and dendrites are separate. Staining not suitable for seeing details

Question 18

Golgi staining

Answer 18

Neurons and dendrites are together. More detailes can be seen with this staining.