3- Nervous System Development Flashcards Preview

BIOM 3000 (Final) > 3- Nervous System Development > Flashcards

Flashcards in 3- Nervous System Development Deck (19)
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1

Endoderm Becomes

Gut
Liver
Lung

2

Mesoderm Becomes

Skeleton
Muscle
Kidney
Heart

3

Ectoderm Becomes

Skin
Nervous tissue

4

Spina Bifida

Incomplete closure of caudal end of neural tube

5

Spina Bifida -Occulta

Incomplete closure of vertebrae

6

Spina Bifida - Meningocele

Pocket of CSF is outside of vertebral column

7

Spina Bifida - Myelomenigocele

Spinal cord and mengines outside of body

8

Encephalocele

Sac like protrusion of brain and surrounding membranes

9

Anencephaly

Incomplete closure of rostral end of neural tube

Lack of telencephalon (cerebrum)

Part of brain missing

10

Flexure Points

Pontine ---> 4th ventricle

Cephalic---> midbrain/spinal cord

Cervical--> where brain stem ends

11

Choroid Plexus

Found in forebrain and 4th ventricle

Made of ependymal cells to filter blood and form CSF

12

Insula

Focal point that telencephalon (forebrain) grows around

13

Radial Migration

Somal migration (cell bodies)
Migrates straight up
Guided by radial glial cells

14

Tangential migration

Cells from medial and lateral ganglionic eminence moving to cortex

Forms inhibitory interneurons

Moves to the side, then up

15

Cranial Neural Crest Cells

Neurons and glia

Cartilage and bone
Connective tissue

16

Trunk Neural Crest Cells become

Sensory neurons and glia

pigment cells

Adrenal gland cells

17

SNS Pre-ganglions exit at

Thoracic and lumbar

18

PSNS Pre-ganglions exit at

Cranial and sacral

19

Neurocristopathies

Class of pathologies involves neural crest cells

Waardenburg syndrom

Neurofibromatosis
Cleft lip/palate