Digestive, Respiratory, Skeletal and Muscle development Flashcards
Endoderm of foregut and ectoderm of stomodeum forms?
Oropharyngeal membrane
Endoderm of hindgut and ectoderm of proctodeum forms?
cloacal membrane
Which Pair does not go together?
A. Stomodeum – oropharyngeal membrane
B. proctodeum – cloacal membrane
C. Stomodeum – ectodermal depression
D. proctodeum – oropharyngeal membrane
D. proctodeum – oropharyngeal membrane
What does the stomodeum develop into?
Mouth
What parts of the body does the Forgut develop into?
Pharynx, Esophagus, Stomach & Cranial part of Duodenum
What parts of the body does the Midgut develop into?
Caudal part of duodenum, jejunum, ilium, cecum nd cranial part of colon
What does the hindgut become?
Caudal part of colon
Rectum
What does the proctodeum become?
Anal canal and anus
Dilation of foregut develops…
A. Stomodeum
B. Spleen
C. Stomach
D. Hindgut
C. Stomach
Which part of the stomach grows faster?
A. pylorus
B. cardiac
C. fundus
A. pylorus
Longitudinal rotation of stomach causes _____________
Greater curvature to move to the fetal left
Blood supply to the midgut is supplied by what artery?
Superior mesenteric artery
What condition results in the failure of anal membrane to break down?
Imperforate anus
What condition will find feces in the urinary canal (abnormality)?
urorectal fistula
What develops as a ventral outgrowth of endoderm at terminal part of foregut?
Liver/hepatic bud
They cystic duct + hepatic duct = ?
Bile duct
T/F
The dorsal pancreatic bud and ventral pancreatic bud are formed from gut endoderm.
True
What does the cephalic primitive gut form?
Foregut
What does the caudal primitive gut form?
Hindgut
Name the body wall closure defect that causes the bladder, rectum and anal canal to be exposed.
Cloacal exstrophy
What is the term that is also referred to as the primitive oral cavity?
Stomodeum
At birth, the tracheal bifurcation is by which thoracic vertebrae?
4
What is the name of cells that differentiate into fibroblasts, chondroblasts, and osteoblasts?
Sclerotome
What part of the skull forms the skeleton of the face?
Viscerocranium
What fontanelle closes at 6 months of age?
Sphenoidal Fontanelle
What kind of cartilage contributes to the formation of the middle ear ossicles, malleus and incus?
Meckel
What are the four contents of lung fluid?
Chlorine
Mucus
Protein
Surfactant
What is the phase of lung maturation that cones until 10 years of age?
Terminal Sac
What is the embryonic folding that plays a key role in moving the shrinking yolk sac towards the midgut?
Cephalocaudal
What is the ossification process which initially involves the formation of hyaline cartilage?
Endochondral
Which of the following is NOT TRUE about neurocranium?
A. chondrocranium is a part of neurocranium
B. all bones undergo endochondral ossification only
C. Consists of flat bones
D. Bones are formed by both types of ossification processes
B. all bones undergo endochondral ossification only
What is the condition where the brain fails to grow to its normal size?
Microcephaly
Which are the 2 primary spinal curves that are formed first?
Thoracic and Sacral
Of the two secondary spinal curves, which forms first?
Cervical
Which 2 parts of the somite contribute to the formation of muscles?
Myotome and dermatome
