Endocrine
Stage 13
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B1L Dorsal portion of hypopharyngeal eminence. Rathke's pouch derived from ectoderm anterior to the buccopharyngeal membrane ( rudimentary adenohypophysis).
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B2L Dorsal portion of hypopharyngeal eminence. Rathke's pouch derived from ectoderm anterior to the buccopharyngeal membrane ( rudimentary adenohypophysis).
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B3L Rudimentary thyroid ventral to aortic sac (also seen in B2, ventral to the hypopharyngeal eminence).
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G7L (Close to midline in head region). Forebrain, midbrain, hindbrain (with thin roof). Arrowed Rathke's pouch. Floor of pharynx with foramen caecum (the tongue has not yet formed).
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Stage 22
Stage 22L serial labeled images
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A6L Thalamus/hypothalamus.
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B2L Neurohyophysis and adenohypophysis. Remnant of Rathke's pouch (residual lumen) in adenohypophysis
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B3L Adenohypophysis.
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C3L Glottic region with cricoid cartilage and descending process of thyroid cartilage laterally.
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C4L Section damaged, but shows thyroid gland lateral to trachea.
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C5L Thyroid gland.
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D1L Thymus gland.
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E6L R,L adrenal glands under diaphragm
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E7L Large adrenal glands.
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F1L Adrenal glands. R. Kidney. Autonomic ganglia (partly the adrenal medulla precursors).
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F2L Kidneys (note retroperitoneal location). Cortex. Medulla. L. Adrenal gland.
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Stage 22 Selected
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A7 CN5 and endocrine
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B2 pituitary
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C2 pharynx Overview of embryo (stage 22) neck region where high power sections is from in C3. Thyroid gland at top of image lying anterior and extending lateral to the trachea.
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C3 trachea and thyroid Thyroid gland.
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C5 thorax Overview of embryo (stage 22) chest region where high power sections is from in C6. Thymus gland at top of image anterior to section through aortic arch.
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C6 thymus Thymus gland.
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E6 gastrointestinal Overview of embryo (stage 22) at the level of the liver where adrenals are seen.
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F3 adrenal gland Fetal and permanent adrenal cortex. The medulla of the adrenal gland is of neural crest origin and it is not yet encapsulated by the cortex.
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Glossary Links
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Course Content 2010
Embryology Introduction | Cell Division/Fertilization | Lab 1 | Week 1&2 Development | Week 3 Development | Lab 2 | Mesoderm Development | Ectoderm, Early Neural, Neural Crest | Lab 3 | Early Vascular Development | Placenta | Lab 4 | Endoderm, Early Gastrointestinal | Respiratory Development | Lab 5 | Head Development | Neural Crest Development | Lab 6 | Musculoskeletal Development | Limb Development | Lab 7 | Kidney | Genital | Lab 8 | Sensory | Stem Cells | Stem Cells | Endocrine | Lab 10 | Late Vascular Development | Integumentary | Lab 11 | Birth, Postnatal | Revision | Lab 12 | Lecture Audio | Course Timetable
Cite this page: Hill, M.A. (2024, April 20) Embryology 2010 Lab 10. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/2010_Lab_10
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- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G