Comd 3100 Anatomy Embryology Unit 15 Part 4

Front 1

Nervous system is derived from the

Back 1

ectoderm (part of the cell differentiation process)

Front 2

During the __ week, the thickening that will give rise to all the neurons and neuroglial cells is called ____

Back 2

2nd week, neural plate

Front 3

neural groove forms along the ________ of the neural plate

Back 3

midline

Front 4

neural folds are described as the:

Back 4

thickening along the lateral marigins of the neural plate

Front 5

neural tube is the:

Back 5

fusing of the neural folds at the midline

Front 6

What gives rise to the CNS?

Back 6

the neural tube

Front 7

during the ____ week the neural crest (ganglion ridge) is what?

Back 7

3rd week, ridge of ectodermal cells on either side of the neural tube

Front 8

neural crest (ganglion ridge) becomes what?

Back 8

spinal and cranial nerve ganglia and ganglis of the sympathetic and autonomic nervous system (sub part of peripheral nervous system)

Front 9

the development of the spinal cord is formed from the:

Back 9

neural tube

Front 10

during the 6th week, describe the development of the spinal cord

Back 10

sulcus limitans: groove formed from thickening of later walls
-alar plates: form dorsal to sulcus limitans
-basal plates: form ventral to sulcus limitans

Front 11

During the ___ week, what is formed from the alar plates?

Back 11

9th, posterior horns (dorsal) (grey matter)

Front 12

During the ___ week, what is formed from the basal plates?

Back 12

9th, the anterior and lateral horns (ventral) (grey matter)

Front 13

Sensory fibers and Motor fibers in the white matter have also been formed and the spinal cord is completed at end of the 9th week. (T/F)

Back 13

TRUE

Front 14

Development of Brain starts at the __ week with 3 swellings forming what parts of the brain?

Back 14

4th, prosencephalon (forebrain), mesencephalon (midbrain), rhombencephalon (hindbrain)

Front 15

During the ___ week, 5 regions of the brain are formed, what are they?

Back 15

5th, telencephalon (sub of forebrain), diencephalon (sub of forebrain), metencephalon (sub of hindbrain), myelencephalon (sub hindbrain) and mesencephalon (midbrain)