921. The urinary bladder :
A. Is a derivative of the hindgut
B. Is entirely derived from endoderm
C. Is formed from mesoderm
D. Is a derivative of the urogenital sinus *
922. Regarding Meckel’s diverticulum, it is the remnant of :
A. Vitelline duct *
B. The allantois
C. The Cecal Bud
D. Urogenital sinus
923. Regarding development of arches, the nerve of 3rd pharyngeal arch is :
A. Accessory nerve
B. The vagus nerve
C. The facial nerve
D. Glossopharyngeal *
924. The junction of the cranial and caudal limb of the primary intestinal loop is marked by :
A. Duodenojejunal junction
B. Jejunoileal junction
C. Meckel’s diverticulum *
D. Pulmonary valvular nerve
925. Abnormal development of uro-rectal septum causes all of the following except :
A. Imperforate anus
B. Rectal atresia
C. Ur0-rectal fistula
D. Rectovaginal fistula *
926. The first organ of the body to start functioning is :
A. Central nervous system
B. Heart *
C. Liver
D. Kidneys
927. Cartilages and muscles of the larynx are formed from :
A. Somatic mesoderm
B. Splanchnic mesoderm
C. Endoderm
D. Mesenchyme of the bronchial arches *
928. The structure developing from the third pharyngeal pouch is :
A. Superior parathyroid gland
B. Thymus *
C. Tympanic membrane
D. Thyroid gland
929. The lower Lip develops from ?
A. Maxillary prominences
B. Lateral nasal prominences
C. Mandibular prominences *
D. Frontonasal prominences
930. Functional derivatives of mesonephric duct include :
A. Vas deferens *
B. Epoophoron
C. Upper part of vagina
D. Uterus