Exam (elaborations) NBCE

Endoderm develops into - ANSWER 1. Organs 2. GI tract 3. Respiratory tract Paraxial mesoderm is divided into - ANSWER 1. Somatic 2. Splanchnic Somatic paraxial mesoderm develops into - ANSWER Skeletal muscle Splanchnic paraxial mesoderm develops into - ANSWER Visceral smooth muscle Intermediate mesoderm develops into - ANSWER 1. Urogenital system 2. Kidneys Lateral plate mesoderm develops into - ANSWER 1. Adrenal cortex 2. Blood and lymph cells Ectoderm is divided into - ANSWER 1. Surface ectoderm 2. Neuroectoderm Neuroectoderm develops into - ANSWER 1. Neural tube 2. Neural crest Neural tube develops into - ANSWER CNS Neural crest develops into - ANSWER Cells outside CNS Spina bifida occulta - ANSWER Non-fusion of laminae Area of hair growth over site of spina bifida occulta is known as - ANSWER Fawn's beard Vitamin that prevents spina bifida occulta - ANSWER Folic acid Folic acid is also known as - ANSWER 1. Vitamin B9 2. Methyl folate 3. Tetrahydrofolate Arnold Chiari syndrome Type 1 - ANSWER Extension of cerebellar peduncles below foramen magnum Function of cerebellar peduncles - ANSWER Connect cerebellum to brainstem Arnold Chiari syndrome Type 2 - ANSWER Type 1 + myelomeningocele Cleft palate - ANSWER Non-fusion of maxillary and palatine bones Notochord persists as - ANSWER Nucleus pulposus Sclerotomes give rise to - ANSWER Vertebrae Epimeres give rise to - ANSWER Dorsal muscles Hypomeres give rise to - ANSWER Ventral muscles