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Flashcards in germ layer derivatives Deck (26):
1

Epidermis, hair nails are derivatives of which layer ?

Surface ectoderm

2

The inner ear and external ear are derivatives of ?

Surface ectoderm

3

The auditory tube and middle ear are derivatives of ?

ENDODERM

4

The anterior pituitary (Rathkes poucH ) is derivative of ?

Surface ectoderm

5

Enamel of the teeth as lens of the eyes a re derivatives of ?

Surface ectoderm

6

The adrenal gland is derivative of just one layer ?

NO
medulla: neural crest
Cortex: mesoderm

7

Neuroectoderm derivatives are ?

All the neural tube
Central nervos system

* The retina and optic nerve

* Pineal gland

* Astrocytes

* Oligodendrocytes

* Neurohypophysis

8

Schwann cells are derived of ?

Neural crest ectoderm

9

Which meninges are derived from neural crest ?

Pia and arachnoid

10

The dura mater is derived of ?

Mesoderm

11

Sensory and autonomic ganglia are derived from ?

Neural crest cells

12

Which structures of the heart are derived from neural crest cells ?

* Endocardial cushions

* Aorticopulmonary septum

13

Parafollicular Cells are derived from the same layer as melanocytes are ... which is ?

Neural crest

14

Smooth, cardiac and skeletal muscle is derived from ?

MESODERM

15

Connective tissue, cartilage and bone are derived from the same layer ... which is ?

MESODERM

16

Testis ovaries and internal reproductive organs are derived from the same layer as the kidneys and ureters .... Which is ?

MESODERM

17

The spleen is derived from ?

MESODERM

18

the EPITHELIA LINING of the foregut, midgut and hind gut is derived from ?

ENDODERM

19

The perenchyma of the liver and the pancreas is derived from the same layer which the submadibular sublingual and tyroid gland are derived .... Which is ?

ENDODERM

20

Pharyngeal pouches derived fron ENDODERM give rise to :

* Thymus

* Parathyroid glands

* Palatine tonsils

* Auditory tube and middle ear

21

The epithelia lining of the genitourynary tract system is derived from ?

Endoderm

22

The nucleus pulposus is derived from the notochord which is derived from ?

Mesoderm

23

The 35 somites of the human are derived from ?

Paraxial mesoderm

24

Lower respiratory tract epithelia like larynx, trachea, and lung is derived from ?

ENDODERM

25

The anal canal above the pectinate line is derived from endoderm, the area below this line is derived from ??????

Surface ectoderm

26

Primordial germ cells and early blood cells and blood vessels are derived from which part ?

FROM THE YOLK SAC