Which of the following germ layers gives rise to the nervous system, epidermis of skin, and hair follicles?

Explanation

## Embryonic Germ Layers and Their Derivatives The **ectoderm** is the outermost of the three primary germ layers and gives rise to multiple structures: ### Ectodermal Derivatives: - **Nervous system**: Brain, spinal cord, peripheral nerves - **Epidermis**: Outermost layer of skin - **Hair follicles, sebaceous glands, sweat glands** - Eye lens, inner ear, tooth enamel - Melanocytes - Adrenal medulla ### Key Point: The ectoderm is responsible for all structures that form the outer covering and nervous system of the body. ### High-Yield Mnemonic: **"ECTODERM = Epidermis, Cranial nerves, Tooth enamel, Outer layer"** This is a foundational concept in embryology and is frequently tested in NEET PG exams.