Systemic embryology : Skeletal system: MCQs on the basis of langman’s medical embryology book

Systemic embryology :

Skeletal system on the basis of langman’s medical embryology book

Mcqs

Questions

1.      Skeletal system develops from

a)     Paraaxial mesoderm ,Surface ectoderm ,Endoderm

b)    Paraaxial mesoderm, Neural crest, Lateral plate mesoderm

c)      Neural crest ,Surface ectoderm ,Endoderm

d)     Paraaxial mesoderm ,Surface ectoderm , intermediated mesoderm

e)     e) Paraaxial mesoderm , neuroectoderm ,Endoderm

2.  Mesenchyme mean

a) fetal connective tissue

 b) mesenchyme have capacity to formed muscle

 c) mesenchyme always originate from mesoderm

d) mesenchyme of head and neck region originate from surface ectoderm

e) mesenchyme is devoid of cells

3. vertebral column and ribs develops from

a) somites

 b) lateral plate mesoderm

 c) neural crest

d) intermediate mesoderm

 e) endoderm

4. Bone and connective tissue and muscles of limb develops from

a) endoderm , ectoderm

b) neural crest and endoderm

 c) lateral plate mesoderm and somites

d) neural crest and somites

e) lateral plate mesoderm and neural crest

5) ossification center develops in a cartilaginous model means : membranous ossification / endochondral ossification

6. AER --controls anterioposterior patterning of limb/ regulates limb outgrowth/ rotation of limb

7. Amelia means-- partially formed limb / absence of limb/ deformed limb

8. polydactyly means-- fused finger/ small sized finger/ extra finger

9. Congenital hip dislocation common in female / male

10. Occipital somites and somitomere  contritubes to formation of cranial vault and base of the skull: true / false 

Answers:

2.     Skeletal system develops from

a)     Paraaxial mesoderm ,Surface ectoderm ,Endoderm

b)    Paraaxial mesoderm, Neural crest, Lateral plate mesoderm

c)      Neural crest ,Surface ectoderm ,Endoderm

d)     Paraaxial mesoderm ,Surface ectoderm , intermediated mesoderm

e)     e) Paraaxial mesoderm , neuroectoderm ,Endoderm

2.  Mesenchyme mean

a) fetal connective tissue

 b) mesenchyme have capacity to formed muscle

 c) mesenchyme always originate from mesoderm

d) mesenchyme of head and neck region originate from surface ectoderm

e) mesenchyme is devoid of cells

3. vertebral column and ribs develops from

a) somites

 b) lateral plate mesoderm

 c) neural crest

d) intermediate mesoderm

 e) endoderm

4. Bone and connective tissue and muscles of limb develops from

a) endoderm , ectoderm

b) neural crest and endoderm

 c) lateral plate mesoderm and somites

d) neural crest and somites

e) lateral plate mesoderm and neural crest

5) ossification center develops in a cartilaginous model means : membranous ossification / endochondral ossification

6. AER --controls anterioposterior patterning of limb/ regulates limb outgrowth/ rotation of limb

7. Amelia means-- partially formed limb / absence of limb/ deformed limb

8. polydactyly means-- fused finger/ small sized finger/ extra finger

9. Congenital hip dislocation common in female / male

10. Occipital somites and somitomere  contritubes to formation of cranial vault and base of the skull: true / false