The Nervous System

Question 1

ectoderm

Answer 1

where the nervous tissue emerges

- outermost layer of developing fetus

Question 2

neural induction

Answer 2

process that causes formation of neural tube

- neural tube balloons up at rostral end and fore, hind, mis brain and spinal cord can be delineated

Question 3

rostrocaudal

Answer 3

front-back plane used to identify anatomical structured in body and brain

Question 4

spina bifida

Answer 4

development disease of spinal cord, where tube does not close
- disrupts lumbar and sacral segment of spinal cord

Question 5

neuroblasts

Answer 5

brain progenitor divides into other neuroblasts or nerve cells
- generate all neurons and glial cells of nervous system

Question 6

neuroepithelium

Answer 6

lining of neural tube formed by neuroblasts or nerve cells

- generate all neurons and glial cells of nervous system

Question 7

neural crest

Answer 7

generated by neuroepithelium

- outside neural tube, sensory and autonomic neurons in PNS

Question 8

central sulcus

Answer 8

divides frontal and parietal lobes

Question 9

lateral sulcus

Answer 9

delineates temporal lobe below frontal and parietal lobes

Question 10

primary motor cortex

Answer 10

connects to the muscles of the body

Question 11

strip

Answer 11

represents body map

Question 12

magnification factor

Answer 12

cortical space projected by an area of language production

Question 13

aphasia

Answer 13

damage of Broca’s area = inability to produce/understand words

Question 14

primary sensory cortex

Answer 14

strip of cerebral tissue behind central sulcus engaged in sensory reception of bodily sensations

Question 15

wernicke’s area

Answer 15

language area in temporal lobe

Question 16

arcuate fasciculus

Answer 16

connects wernicke’s and Broca’s speech areas

Question 17

limbic system

Answer 17

network of nuclei - learning & emotion

Question 18

fornix

Answer 18

nerve fibre tract connecting hippocampus to mammillary bodies

Question 19

cingulate gyrus

Answer 19

part of limbic system

Question 20

globus pallidus

Answer 20

nucleus of basal ganglia

Question 21

medulla oblongata

Answer 21

above spinal cord

- processes breathing, digestion, heart and blood vessel function, swallowing, sneezing

Question 22

immunocytochemistry

Answer 22

makes it possible to see selected neurons that are affected by growth
- staining tissue (brain) using antibodies

Question 23

lesion studies

Answer 23

surgical removal of brain section to study its effects on behaviour or function

Question 24

event - related potential

Answer 24

physiological measures of large electrical change in the brain produced by sensory stimulation or motor responses

Question 25

CAT

Answer 25

computerized axial tomography

- uses xRays to capture pictures of the brain