Surface Ectoderm derivatives at a glance

Surface Ectoderm derivatives:

Divided into

1.       Epidermis

2.       Placode

3.       Stomstodaeum

4.       Proctodium

1. Epidermis derivatives:

·         Mammary gland

·         Nail

·         Hair follicle

·         Sebaceous gland (cutaneous gland )

·         Sweat gland (cutaneous gland )

2. Placode derivatives:

·         Olfactory placode – form Olfactory epithelium

·         Otic placode – form inner ear

·         Lens placode –Form’s lens

3. Stomatodium derivatives:

·         Epithelium of nasal cavity

·         Epithelium of vestibule ,gum, hard palate

·         Enamel of teeth

·         Parotid gland

·         Rathke’s pouch

4. Proctodium derivatives:

·         Lower part of anal canal.

·         Epithelium and glands