(a) Development of the individual organs of digestive system, genital system, urinary system,, respiratory system, cardiovascular system. Nervous system, special sensory organs, endocrine glands and mammary gland.

(b) Developmental abnormalities of individual organs/systems, pathogenesis of the anomalies.

(c) Histogenesis of various organs.

(d) Development of skeletal system, muscular system and derivatives of coelomic cavaties

(e) Development of face and the pharyngeal arches and the associated congenital anomalies.