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EYE AND EAR: 01 HUMAN FOREBRAIN (CROSS SECTION): This is a cross section through the forebrain of a human embryo. Identify the DIENCEPHALON, OPTIC STALK,

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Presentation on theme: "EYE AND EAR: 01 HUMAN FOREBRAIN (CROSS SECTION): This is a cross section through the forebrain of a human embryo. Identify the DIENCEPHALON, OPTIC STALK,"— Presentation transcript:

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2 EYE AND EAR: 01 HUMAN FOREBRAIN (CROSS SECTION): This is a cross section through the forebrain of a human embryo. Identify the DIENCEPHALON, OPTIC STALK, OPTIC CUP, LENS PLACODE, NASAL PLACODE, RATHKIE'S POUCH, INTERNAL CAROTID ARTERIES, HEAD MESENCHYME, THIRD VENTRICLE, EVAGINATION OF THE NEURAL LOBE OF HYPOPHYSIS.

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4 EYE AND EAR: DAY EYE (SAGITTAL SECTION): Identify the DIENCEPHALON, OPTIC STALK, OPTIC CUP (4), OPTIC FISSURE (2), ANTERIOR (1), AND POSTERIOR (5), LENS EPITHELIUM, NEURAL RETINA, PIGMENTED RETINA, HYALOID ARTERY (3).

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6 EYE AND EAR: DAY EYE: Identify the ANTERIOR LENS EPITHELIUM (1), CORNEAL ECTODERM (2), CORNEAL MESODERM (3), OPTIC FISSURE (4), HYALOID ARTERY (5), PIGMENTED RETINA (7), NEURAL RETINA (6), POSTERIOR LENS EPITHELIUM (8).

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8 EYE AND EAR: DAY EYE: Identify the ANTERIOR CHAMBER (1), ANTERIOR LENS EPITHELIUM (2), CORNEA (3), HYALOID ARTERY (4), LENS (5), LOWER EYELID (6), NEURAL RETINA (7), PIGMENTED RETINA (8), PUPILLARY MEMBRANE (9), SCLERA (10), UPPER EYELID (11) AND VITREOUS (12).

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10 EYE AND EAR: DAY EYE: Identify: ANTERIOR CHAMBER (1), CONJUNCTIVAL SAC (2), INTRARETINAL SPACE (3), LENS (4), VITREOUS (5)

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12 EYE AND EAR: 06 8 WEEK EYE: Identify: ANTERIOR CHAMBER (1), CHOROID (2), CONJUNCTIVAL SAC (3), FUSED EYELIDS (4), INFERIOR RECTUS MUSCLE (5), ORBICULARIS OCULI MUSCLE (6), PUPILLARY MEMBRANE (7), SCLERA (8).

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14 EYE AND EAR: 07 8 WEEK EYE: Identify the EYELIDS and GLOBE

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16 EYE AND EAR: 08 HOLOPROSENCEPHALY: Describe the developmental sequale leading to this condition.

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18 EYE AND EAR: 09 CYCLOPIA. Describe the developmental sequale leading to this condition.

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20 EYE AND EAR: 10 CYCLOPIA II. Describe the developmental sequale leading to this condition.

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22 EYE AND EAR: 11 COLOBOMA OF IRIS: Explain the embryological basis for this abnormality.

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24 EYE AND EAR: 12 CONGENITAL GLAUCOMA: Distinguish between congenital glaucoma AND congenital cataract. How does glaucoma develop?

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26 EYE AND EAR: 13 CONGENITAL CATARACT (FULL FACE)

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28 EYE AND EAR: 14 CONGENITAL CATARACT: Distinguish between congenital cataract and congenital glaucoma. What is a major cause of congenital cataract?

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30 EYE AND EAR: 15 RETINOBLASTOMA in L. eye. Note yellowish area which is the easily seen tumor.

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32 EYE AND EAR: 16 RETINOBLASTOMA- close up. Be able to differentiate between this condition and a cataract.

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34 EYE AND EAR: 17 RETINOBLASTOMA- note blood vessels

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36 EYE AND EAR: 18 ABNORMAL PINNA: Explain the developmental basis for this abnormality of the external ear.

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38 EYE AND EAR: 19 BAT EARS: Explain the developmental basis for this abnormality of the external ear.


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