Derm flow chart

Question 1

Embryonic epiblast

Answer 1

Embryonic endoderm
Embryonic mesoderm
Embryonic ectoderm

Question 2

Embryonic endoderm

Answer 2

Branch 1: Allantois, urinary bladder
Branch 2: Pharynx > thyroid, pharyngeal pouch
Branch 3: Gut > pancreas, trachea, lungs, liver, digestive tract

Question 3

Embryonic mesoderm

Answer 3

Intermediate mesoderm
Lateral mesoderm
Paraxial mesoderm

Question 4

Embryonic ectoderm

Answer 4

Neutral tube

Outer epithelium of body

Question 5

Intermediate mesoderm

Answer 5

Gametes, gonads (primordial germ cells also do this)
Paramesonephric ducts = vagina, uterus, ut tubes
Mesonephric ducts = ductus epididymus, deferens
Adrenal: cortex

Question 6

Lateral mesoderm

Answer 6

Splanchnic mesoderm

Somatic somatic mesoderm

Question 7

Somatic mesoderm

Answer 7

Limb skeleton

Parietal = pleura, pericardium, peritoneum

Question 8

Splanchnic mesoderm

Answer 8

Visceral = Pleura, peritoneum
Hemangioblastic = blood cells, endothelium of blood cells
Myocardium, endocardium, epicardium
Wall of gut
Wall of respiratory tract

Question 9

Wall of respiratory tract

Answer 9

Splanchnic mesoderm

Question 10

Myocardium, endocardium, epicardium

Answer 10

Splanchnic mesoderm

Question 11

Wall of gut

Answer 11

Splanchnic mesoderm

Question 12

What does splanchnic mesoderm come from?

Answer 12

Lateral mesoderm

Question 13

Paraxial mesoderm

Answer 13

Myotome, sclerotome, dermatome

Question 14

Myotome

Answer 14

Limb muscles

Axial muscles

Question 15

Sclerotome

Answer 15

Axial skeleton

Question 16

Dermatome

Answer 16

Dermis of skin

Question 17

Where does dermis of skin come from?

Answer 17

Dermatome (which comes for paraxial mesoderm)

Question 18

Where does axial skeleton come from?

Answer 18

Sclerotome (which comes from paraxial mesoderm)

Question 19

Where does limb skeleton come from?

Answer 19

Somatic mesoderm (which comes from lateral mesoderm)

Question 20

Where does adrenal cortex come from?

Answer 20

Intermediate mesoderm

Question 21

Where does adrenal medulla come from?

Answer 21

Trunk neural crest (which comes from neural crest)

Question 22

Neural tube

Answer 22

Posterior pituitary
Brain
Spinal cord & spinal motor nerves
NEURAL CREST

Question 23

Neural crest - Trunk neural crest

Answer 23

Schwann cells
Sensory nerves
Pigment cells
Sympathetic ganglion
Adrenal medulla

Question 24

Neural crest - Cranial neural crest

Answer 24

Schwann cells
Sensory nerves
Pigment cells
Walls of aortic arches - outflow tract
Cephalic connective tissue and bones
Dentine

Question 25

Outer epithelium of body

Answer 25

Mammary glands
sweat glands
sebaceous glands
Hair
Nails
Anterior pituitary

Question 26

What does visceral pleura and peritoneum arise from?

Answer 26

Splanchnic mesoderm (which comes from lateral mesoderm)

Question 27

Where do blood cells come from?

Answer 27

Splanchnic mesoderm (which comes from lateral mesoderm)

Question 28

Where do sweat glands come from?

Answer 28

Outer epithelium of body (which comes from embryonic ectoderm)

Question 29

Where does the adrenal cortex come from?

Answer 29

Intermediate mesoderm

Question 30

Where do spinal motor nerves comes from

Answer 30

Neural tube (which comes from embryonic ectoderm)

Question 31

Where do sensory neurons come from?

Answer 31

Neural crest (both trunk and cranial)

Question 32

Where do spinal motor neurons comes from?

Answer 32

Neural tube

Question 33

Where do the walls of the aortic arches arise from?

Answer 33

Cranial neural crest