Basicmedical Key

Liver Staci Bryson, MD Larissa V. Furtado, MD Key Facts Embryology Liver, gallbladder, and associated ducts arise from endodermal buds of caudal foregut Hepatic plate appears on ventral duodenum around…

Thyroid Staci Bryson, MD Larissa V. Furtado, MD Key Facts Embryology Endodermal thyroid diverticulum forms on floor of pharynx/base of tongue opposite the 1st and 2nd pharyngeal pouches during weeks…

Prostate Staci Bryson, MD Key Facts Embryology Forms in early embryonic life from condensation of mesenchyme along pelvic urethra Mainly urogenital sinus mesenchyme Prostate base and central zone form from…

Lung: Alveolar Michael B. Ward, MD Key Facts Embryology Final stage of lung development begins at ˜ 36 weeks gestation and lasts into the 1st few years of childhood This…

Veins, Capillaries, and Lymphatics Lily Marsden, MD Key Facts Embryology and Macroscopic Anatomy Paired vessels form basis of early venous system that returns blood to sinus venosus of primitive heart…

Skeletal Muscle Staci Bryson, MD Larissa V. Furtado, MD Key Facts Embryology Skeletal muscle derives from mesoderm Pharyngeal arches give rise to muscles of head Paraxial mesoderm gives rise to…

Cartilage Larissa V. Furtado, MD Key Facts Embryology Cartilage arises from condensation of multipotent mesenchymal cells from mesoderm during week 5 Perichondrium arises from the superficial mesenchyme Chondrogenesis 2 patterns…

Connective Tissue Staci Bryson, MD Larissa V. Furtado, MD Key Facts Embryology Connective tissue is derived from paraxial mesoderm Visceral connective tissue is derived from lateral plate mesoderm Paraxial mesoderm…

Skin Staci Bryson, MD Key Facts Embryology Dermis Originates from somatic mesoderm and dermomyotome population of somites Elastin and collagen fibers produced at week 11 Epidermis Forms from ectoderm Simple…