Embryology
  • Sample Pictures
  • Starfish
  • Sea Urchin
  • Frog
  • Chick
  • Pig

    Sample Pictures


    Chick 12 to 16 hours-wm

    Chick 28 hours-wm

    Chick 33 hours-wm

    Chick 48 hours-wm

    Chick 72 hours-wm

    Sea Urchin Pluteus Larva

    Starfish Unfertilized


    Frog, neural tube (c.s.)

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    Starfish

    EM0001

    STARFISH, sperm smear showing structure of spermatozoa with unusually long tails 

    EM0002

    STARFISH TESTIS, section of developing sperm in mature testis 

    EM0003

    STARFISH OVARY, c.s. of developing mature eggs 

    EM0004

    STARFISH, w.m. of unfertilized eggs showing the mature eggs 

    EM0005

    STARFISH POLAR BODY, w.m. of polar body formation 

    EM0006

    STARFISH EARLY CLEAVAGE, w.m. of eggs showing 1,2,4,8 and 16 cell stages 

    EM0007

    STARFISH LATE CLEAVAGE, w.m. of eggs showing 32and 64 cell stages with formation of any earlyblastocoel 

    EM0008

    STARFISH MORUL 

    EM0009

    STARFISH BLASTULA, w.m. of egg showing the large blastocoel 

    EM0010

    STARFISH EARLY GASTRULA, w.m. of early gastrula showing invagination in different stages 

    EM0011

    STARFlSH LATE GASTRULA, w.m. of eggs in late gastrula stage 

    EM0012

    STARFISH BIPINNARIA, w.m. of the free-swimming larva 

    EM0013

    STARFISH DEVELOPMENT, w.m. of all stages from the unfertilized eggs through bipinnaria stage 


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    Sea Urchin

    EM0020

    SEA URCHIN SPERM, smear showing structure of spermatozoa with unusually long tails 

    EM0021

    SEA URCHIN TESTIS, section of developing sperm in mature testis 

    EM0022

    SEA URCHIN OVARY, c.s. of developing mature eggs 

    EM0023

    SEA URCHIN UNFERTILIZED EGG, w.m. 

    EM0024

    SEA URCHIN EARLY CLEAVAGE, w.m. a combination mount of one cell to 16 blastomeres inclusive 

    EM0025

    SEA URCHIN LATE CLEAVAGE, w.m. 32 and 64 cell stages included 

    EM0026

    SEA URCHIN BLASTULA, w.m. showing blastocoel clearly 

    EM0027

    SEA URCHIN EARLY GASTRULA, w.m. of early gastrula showing invagination of cells 

    EM0028

    SEA URCHIN LATE GASTRULA, w.m. 

    EM0029

    SEA URCHIN PLUTEUS, w.m. 

    EM0030

    SEA URCHIN DEVELOPMENT, w.m. of all stages indevelopment through pluteus 


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    Frog

    EM0045

    FROG EARLY CLEAVAGE, c.s. showing 4 -16 cells 

    EM0046

    FROG LATE CLEAVAGE, c.s. showing 32 or 64 cells 

    EM0047

    FROG EARLY BLASTULA, c.s. showing blastocoel in early formation 

    EM0048

    FROG LATE BLASTULA, c.s. showing well-formed blastocoel and surrounding cells. 

    EM0049

    FROG EARLY GASTRULA, l.s. showing the dorsal lip and the beginning of involution 

    EM0050

    FROG YOLK PLUG, typical gastrula, l.s.demonstrating the stage after the formation of the ventral lip where yolk plug, blastopore, gastrocoele, ectoderm and endoderm are seen. 

    EM0051 

    FROG NEURAL PLATE, c.s. showing medullary plate at an early stage of development 

    EM0052

    FROG NEURAL FOLD, Sections where neural folds and grooves are quite pronounced. 

    EM0053

    FROG TRANSITION, c.s. of transition between neuralfold and neural tube 

    EM0054

    FROG NEURAL TUBE, c.s. showing neural folds completely fused to form the neural tube. 

    EM0055

    Frog, neural tube c.s.

    EM0064

    Frog, 4mm, w.m.

    EM064A

    Frog, 4mm, serial cs

    EM0065

    FROG (7 mm), w.m. 

    EM0066

    FROG (7 mm), Entire specimen sectioned and mounted in series showing stomodium, external gill in this stage. 

    EM066A

    FROG (7 mm), typical c.s. 

    EM0067

    FROG (7 mm), serial sagittal section 

    EM067A

    FROG (7 mm), typical sagittal section (not serial) with representative regions. 

    EM067B

    Frog, 4 mm. serial sagittal section

    EM0068

    FROG (10 mm), w.m. 

    EM0069

    FROG (10 mm), Internal gill stage. Entire specimen sectioned and mounted in series. 

    EM069A

    FROG (10 mm), typical c.s. with representative regions. 

    EM0070

    FROG (10 mm), serial sagittal section of the entire specimen. 

    EM070A

    FROG (10 mm), typical sagittal section with representative regions. 

     

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    Chick

    EM0080

    CHICK UNINCUBATED, w.m. 

    EM080A

    Chick, Embryo, 12 hrs

    EM0081

    CHICK (13-16 HRS), c.s. showing primitive streak 

    EM0082

    CHICK (13-16 HRS), w.m. with primitive steak. 

    EM0083

    CHICK (18 HRS), w.m. showing the formation of the notochord, Hensen's node, primitive streak 

    EM0084

    CHICK (18 HRS), Serial c.s. showing development through the notochord, Hensen's node and primitive streak. 

    EM0085

    CHICK (21 HRS), w.m. showing 1-3 somites, formation of head fold, neural groove 

    EM0086

    CHICK (21 HRS), serial c.s. 

    EM0087

    CHICK (24 HRS), w.m. showing 4-7 somites prominent neural fold and formation of foregut and paired heart primordia 

    EM0088

    CHICK (24 HRS), serial c.s. 

    EM0089

    CHICK (24 HRS), typical c.s. 

    EM0090

    CHICK (24 HRS), serial sagittal section 

    EM0091

    CHICK (24 HRS), typical sagittal section 

    EM0092

    CHICK (28 HRS), w.m. showing 8-10 somites closureof neural groove, differentiation of head region,three primary brain vesicles 

    EM0093

    CHICK (28 HRS), serial c.s. 

    EM0094

    CHICK (33 HRS), w.m. showing 11-14 somites,further differentiation of brain, formation of theheart and of embryonic blood vessels 

    EM0095

    CHICK (33 HRS), serial c.s. 

    EM0096

    CHICK (33 HRS), typical c.s. 

    EM0097

    CHICK (33 HRS), serial sagittal section 

    EM0098

    CHICK (33 HRS), typical sagittal section 

    EM0099

    CHICK (36-40 HRS), w.m. showing 15-18 somites,beginning of flexion and torsion in the headregion, beginning of blood circulation, appearanceof auditory pits. 

    EM099A

    Chick, 36 hrs., serial c.s.

    EM0100

    CHICK (43 HRS), w.m. showing 19-23 somites,further flexion and torsion fold of amnion, mandibular aortic arch, optic cup 

    EM0101

    CHICK (48 HRS), w.m. showing 24-28 somites,flexion and torsion progressing further caudally,appearance of tail fold of amnion 2-3 aortic arches, optic cup and lens 

    EM0102

    CHICK (48 HRS), serial c.s. 

    EM0103

    CHICK (48 HRS), typical c.s. 

    EM0104

    CHICK (48 HRS), serial sagittal section 

    EM0105

    CHICK (48 HRS), typical sagittal section 

    EM0106

    CHICK, showing 29-32 somites, beginning of the cervical flexus three visceral clefts and arches 

    EM106A

    Chick, 56 hrs. serial c.s.

    EM106B

    Chick, 56 hrs. serial sagittal c.s.

    EM0107

    CHICK (60 HRS), w.m. 

    EM0108

    CHICK (72 HRS), w.m. 

    EM0109

    CHICK (72 HRS), serial c.s. 

    EM0110

    CHICK (72 HRS), typical c.s. 

    EM0111

    CHICK (72 HRS), serial sagittal section 

    EM0112

    CHICK (72 HRS), typical sagittal section 

    EM0113

    CHICK (96 HRS), showing 38-41 somites, torsion completed, considerable increase of size and differentiation of the whole embryo. 

    EM0114

    CHICK (96 HRS), erial c.s. 

    EM0115

    CHICK (96 HRS), typical c.s. 

    EM0116

    CHICK (96 HRS), serial sagittal section 

    EM0117

    CHICK (96 HRS), typical sagittal section 


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    Pig

    EM125A

    Pig 7 mm w.m.

    EM125B

    Pig 8 mm w.m.

    EM125C

    Pig 9 mm w.m.

    EM0126

    PIG (6 MM), serial c.s. 

    EM0127

    PIG (6 MM), typical c.s. 

    EM127A

    Pig 8 mm. typical c.s.

    EM0128

    PIG (6 MM), serial sagittal section 

    EM128A

    Pig 8 mm. ser. sagittal sect.

    EM0129

    PIG (6 MM), typical sagittal section 

    EM129A

    Pig, 8 mm. typical sagittal section

    EM0130

    PIG (10 MM), whole mount 

    EM0131

    PIG (10 MM), serial cross section 

    EM131A

    Pig 9 mm .serial c.s.

    EM131B

    Pig 8 mm .serial c.s.

    EM0132

    PIG (10 MM), typical cross section 

    EM0133

    PIG (10 MM), serial sagittal section 

    EM0134

    PIG (10 MM), typical sagittal section 

    EM0135

    PIG (10 MM), whole mount of head 

    EM0136

    PIG (15 MM), serial cross section 

    EM0137

    PIG (15 MM), spaced serial cross section 

    EM0138

    PIG (15 MM), typical sagittal section 

    EM0139

    PIG (15 MM), spaced serial sagittal section 

    EM0140

    PIG (20 MM), spaced serial c.s. 

     

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