Question

Sweat gland of human being are originated from

• A. Ectoderm
• B. Mesoderm
• C. Endoderm
• D. All of the above

Answer 1

Answer: (A)

Ectoderm

Sweat glands are small tubular structures of the skin that produce sweat. There are two main types of sweat glands that differ in their structure, function, secretory product, mechanism of excretion, anatomic distribution, and distribution across species. Ectoderm is one of the three primary germ layers in the very early embryo. It emerges and originates from the outer layer of germ cells. The ectoderm differentiates to form the nervous system (spine, peripheral nerves and brain), tooth enamel and the epidermis (the outer part of integument). It also forms the lining of mouth, anus, nostrils, sweat glands, hair and nails.

So, the correct answer is option A.