Digestive, Respiratory, Skeletal and Muscle development

Question 1

Endoderm of foregut and ectoderm of stomodeum forms?

Answer 1

Oropharyngeal membrane

Question 2

Endoderm of hindgut and ectoderm of proctodeum forms?

Answer 2

cloacal membrane

Question 3

Which Pair does not go together?

A. Stomodeum – oropharyngeal membrane
B. proctodeum – cloacal membrane
C. Stomodeum – ectodermal depression
D. proctodeum – oropharyngeal membrane

Answer 3

D. proctodeum – oropharyngeal membrane

Question 4

What does the stomodeum develop into?

Answer 4

Mouth

Question 5

What parts of the body does the Forgut develop into?

Answer 5

Pharynx, Esophagus, Stomach & Cranial part of Duodenum

Question 6

What parts of the body does the Midgut develop into?

Answer 6

Caudal part of duodenum, jejunum, ilium, cecum nd cranial part of colon

Question 7

What does the hindgut become?

Answer 7

Caudal part of colon
Rectum

Question 8

What does the proctodeum become?

Answer 8

Anal canal and anus

Question 9

Dilation of foregut develops…
A. Stomodeum
B. Spleen
C. Stomach
D. Hindgut

Answer 9

C. Stomach

Question 10

Which part of the stomach grows faster?
A. pylorus
B. cardiac
C. fundus

Answer 10

A. pylorus

Question 11

Longitudinal rotation of stomach causes _____________

Answer 11

Greater curvature to move to the fetal left

Question 12

Blood supply to the midgut is supplied by what artery?

Answer 12

Superior mesenteric artery

Question 13

What condition results in the failure of anal membrane to break down?

Answer 13

Imperforate anus

Question 14

What condition will find feces in the urinary canal (abnormality)?

Answer 14

urorectal fistula

Question 15

What develops as a ventral outgrowth of endoderm at terminal part of foregut?

Answer 15

Liver/hepatic bud

Question 16

They cystic duct + hepatic duct = ?

Answer 16

Bile duct

Question 17

T/F
The dorsal pancreatic bud and ventral pancreatic bud are formed from gut endoderm.

Answer 17

True

Question 18

What does the cephalic primitive gut form?

Answer 18

Foregut

Question 19

What does the caudal primitive gut form?

Answer 19

Hindgut

Question 20

Name the body wall closure defect that causes the bladder, rectum and anal canal to be exposed.

Answer 20

Cloacal exstrophy

Question 21

What is the term that is also referred to as the primitive oral cavity?

Answer 21

Stomodeum

Question 22

At birth, the tracheal bifurcation is by which thoracic vertebrae?

Answer 22

4

Question 23

What is the name of cells that differentiate into fibroblasts, chondroblasts, and osteoblasts?

Answer 23

Sclerotome

Question 24

What part of the skull forms the skeleton of the face?

Answer 24

Viscerocranium

Question 25

What fontanelle closes at 6 months of age?

Answer 25

Sphenoidal Fontanelle

Question 26

What kind of cartilage contributes to the formation of the middle ear ossicles, malleus and incus?

Answer 26

Meckel

Question 27

What are the four contents of lung fluid?

Answer 27

Chlorine Mucus Protein Surfactant

Question 28

What is the phase of lung maturation that cones until 10 years of age?

Answer 28

Terminal Sac

Question 29

What is the embryonic folding that plays a key role in moving the shrinking yolk sac towards the midgut?

Answer 29

Cephalocaudal

Question 30

What is the ossification process which initially involves the formation of hyaline cartilage?

Answer 30

Endochondral

Question 31

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

Answer 31

B. all bones undergo endochondral ossification only

Question 32

What is the condition where the brain fails to grow to its normal size?

Answer 32

Microcephaly

Question 33

Which are the 2 primary spinal curves that are formed first?

Answer 33

Thoracic and Sacral

Question 34

Of the two secondary spinal curves, which forms first?

Answer 34

Cervical

Question 35

Which 2 parts of the somite contribute to the formation of muscles?

Answer 35

Myotome and dermatome