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