Vascular and excretory organs are formed from

Options

A. Endoderm
B. Mesoderm
C. Ectoderm
D. Mesendoderm

Answer

B

Explanation

Derivatives of Mesoderm
1. All muscles (except muscles of iris) of body.
2. All connective tissue (ligament, tendons, dermis of skin, cartilage, bone, blood)/skeleton
3. Blood vascular system (Heart, blood and blood vessels)
4. Excretory system (except urinary bladder and urethra)
5. Reproductive system (except prostate gland)/Gonads or testes
6. Dentine of teeth
7. Eye (sclera, choroid, ciliary body and iris)
8. Adrenal cortex
9. Spleen
10. Pleura and pericardium
11. Notochord