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| ==Stage 13==
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| | [[File:Stage 13 image 057.jpg|160px]]
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| | [[File:Stage 13 image 058.jpg|160px]]
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| | [[File:Stage 13 image 059.jpg|160px]]
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| | [[File:Stage 13 image 098.jpg|160px]]
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| | [[:File:Stage 13 image 057.jpg|B1L]] Dorsal portion of hypopharyngeal eminence. Rathke's pouch derived from ectoderm anterior to the buccopharyngeal membrane ( rudimentary adenohypophysis).
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| | [[:File:Stage 13 image 058.jpg|B2L]] Dorsal portion of hypopharyngeal eminence. Rathke's pouch derived from ectoderm anterior to the buccopharyngeal membrane ( rudimentary adenohypophysis).
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| | [[:File:Stage 13 image 059.jpg|B3L]] Rudimentary thyroid ventral to aortic sac (also seen in B2, ventral to the hypopharyngeal eminence).
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| | [[:File:Stage 13 image 098.jpg|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==
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| |+'''[[Carnegie stage_22 - serial sections|Stage 22L]]''' ''serial labeled images''
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| | [[File:Stage_22 image 055.jpg|120px]]
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| | [[:File:Stage_22 image 055.jpg|A6L]] Thalamus/hypothalamus.
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| | [[File:Stage_22 image 058.jpg|120px]]
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| | [[:File:Stage_22 image 058.jpg|B2L]] Neurohyophysis and adenohypophysis. Remnant of Rathke's pouch (residual lumen) in adenohypophysis
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| | [[File:Stage_22 image 059.jpg|120px]]
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| | [[:File:Stage_22 image 059.jpg|B3L]] Adenohypophysis.
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| | [[File:Stage_22 image 066.jpg|120px]]
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| | [[:File:Stage_22 image 066.jpg|C3L]] Glottic region with cricoid cartilage and descending process of thyroid cartilage laterally.
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| | [[File:Stage_22 image 067.jpg|120px]]
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| | [[:File:Stage_22 image 067.jpg|C4L]] Section damaged, but shows thyroid gland lateral to trachea.
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| | [[File:Stage_22 image 068.jpg|120px]]
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| | [[:File:Stage_22 image 068.jpg|C5L]] Thyroid gland.
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| | [[File:Stage_22 image 071.jpg|120px]]
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| | [[:File:Stage_22 image 071.jpg|D1L]] Thymus gland.
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| | [[File:Stage_22 image 083.jpg|120px]]
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| | [[:File:Stage_22 image 083.jpg|E6L]] R,L adrenal glands under diaphragm
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| | [[File:Stage_22 image 084.jpg|120px]]
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| | [[:File:Stage_22 image 084.jpg|E7L]] Large adrenal glands.
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| | [[File:Stage_22 image 085.jpg|120px]]
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| | [[:File:Stage_22 image 085.jpg|F1L]] Adrenal glands. R. Kidney. Autonomic ganglia (partly the adrenal medulla precursors).
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| | [[File:Stage_22 image 086.jpg|120px]]
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| | [[:File:Stage_22 image 086.jpg|F2L]] Kidneys (note retroperitoneal location). Cortex. Medulla. L. Adrenal gland.
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| List of serial section images containing endocrine components.
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| A6: Thalamus/hypothalamus.
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| B2: Neurohyophysis and adenohypophysis. Remnant of Rathke's pouch (residual lumen) in adenohypophysis.
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| B3: Adenohypophysis.
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| C3: Glottic region with cricoid cartilage and descending process of thyroid cartilage laterally.
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| C4: Section damaged, but shows thyroid gland lateral to trachea.
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| C5: Thyroidgland.
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| Dl: Thymus gland.
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| E6: R,L adrenal glands under diaphragm.
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| E7: Large adrenal glands.
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| Fl: Adrenal glands. R. Kidney. Autonomic ganglia (partly the adrenal medulla precursors).
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| F2: Kidneys (note retroperitoneal location). Cortex. Medulla. L. Adrenal gland.
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| ==Stage 22 Embryo (Human) Selected High power==
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| ===Hypophysis (pituitary)===
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| A7: Overview of embryo (stage 22) head region where high power sections is from in B2. Hypophysis (pituitary) in centre of image cut tranversely.
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| B2: Neurohypophysis (infundibular part with hypothalamic recess of 3rd ventricle). Cavity in centre of image is the residual lumen of Rathke's pouch, which will form pars intermedia. Surrounding the hypophysis is sphenoid cartilage.
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| ===Thyroid===
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| C2: 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: Thyroid gland.
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| ===Thymus===
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| C5: 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 gland.
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| ===Adrenal===
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| E6: Overview of embryo (stage 22) at the level of the liver where adrenals are seen.
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| F3: 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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