Chapter 2

Question 1

the superior parietal lobe is important in ______

Answer 1

attention

Question 2

the inferior frontal lobe functions to ________

Answer 2

produce speech

Question 3

what does functional localization mean and what are some examples

Answer 3

in the context of neuroscience refers to the principle that specific cognitive and sensory functions are mapped to particular regions of the brain. This concept posits that different areas of the brain are specialized for distinct functions, such as language, memory, or motor control. The theory is rooted in the idea that while the brain operates as an integrated whole, certain tasks or processes are primarily handled by localized brain regions.

1. broca’s area
2. wenicke’s area
3. primary motor cortex
4. primary visual cortex

Question 4

Neurons of the ventral horn subserve ______

Answer 4

limb and trunk movements

Question 5

the rostral spinal cord merges with ____

Answer 5

the brain stem

Question 6

on the dorsal brain stem surface there are four landmarks

Answer 6

1. dorsal columns
2. dorsal column tubercles
3. fourth ventricle
4. colliculi (super and infer)

Question 7

on the ventral surface of the brain stem there are four landmarks that can be seen

and all four are key components of the _____

Answer 7

1. pyramids
2. olives
3. base of pons
4. basis pedunculi

components of the motor system

Question 8

dorsal root ganglion neurons sense

Answer 8

touch and limb position

Question 9

neurons of the ventral horn subserve

Answer 9

limb and trunk movements

Question 10

what reflex if an example of a dorsal root ganglion neuron that has both local spinal and ascending connections, and as a consequence can serve both reflex and proprioception

Answer 10

the Knee-Jerk Reflex

Question 11

true or false the location of a corticospinal tract can only be seen on healthy Adults rather than Young Infants

Answer 11

true; cause the axons are unmyelinated in the young infant; they become myelinated after about 1yr of age

Question 12

true or false? damage to a tract can be revealed by myelin staining

Answer 12

true. this will show the degeneration of tracts

its termed (Wallerian Degeneration)

Question 13

dorsal root ganglion neurons are also called?

Answer 13

primary afferent fibres

Question 14

95% of the cerebral cortex contain at least 6 cell layers this is commonly called ____

and true or false the remaining 5% doesnt have a name?

Answer 14

neocortex

false; allocortex

Question 15

true or false the somatic sensory and motor cortical areas are part of the neocortex?

Answer 15

true

Question 16

allocortex is where?

Answer 16

ventral brain surface

Question 17

allocortex is involved with what?

Answer 17

olfaction
learning
memory

Question 18

broadmann’s areas are based only on differences in the __________ of the cortex

Answer 18

cytoarchitecture

ex:
- size and shape of neuron

Question 19

four major neurotransmitter-specific systems have cell bodies located in the CNS

Acetylcholine - ?
Dopamine - ?

Answer 19

Acetylcholine - Pons, forebrain, lat hypothalamus

Dopamine - frontal lobe, tegmental area

Question 20

the fourth ventricle forms the dorsal surface of the ?

Answer 20

medulla

Question 21

_____ contains the colliculi on its dorsal surface

Answer 21

midbrain