Development

Question 1

Nervous system development

Answer 1

proceeds through neurulation, in which the notochord stimulates overlying ectoderm to fold over, creating a neural tube topped with neural crest cells

Question 2

Neural Tube

Answer 2

Becomes the CNS

Question 3

Neural Crest Cells

Answer 3

Spread out throughout the body, differentiating into many different tissues

Question 4

Primitive Reflexes (4)

Answer 4

Exist in Infants and disappear with age

1. Rooting
2. Moro
3. Babinski
4. Grasping

Question 5

Rooting Reflex

Answer 5

Turns head toward stimulus

Question 6

Moro Reflex

Answer 6

Extend arms, response to falling sensation

Question 7

Babinski Reflex

Answer 7

Big toe is extended, other toes fan out in response to brushing on sole of foot

Question 8

Grasping Reflex

Answer 8

grabs anything put into hands

Question 9

Developmental Milestones

Answer 9

Gross and fine motor abilities progress head to toe and core to periphery

Social skills shift from parent-oriented to other-oriented

Language skills become increasingly complex