1
Q
What are the 3 periods of development before birth?
A
Pre-embryonic development (conception to 2 weeks) Embryonic period (2-8 weeks) Foetal period (9 weeks to birth)
2
Q
What occurs during the pre-embryonic period?
A
Fertilisation Cleavage Blastocyst formation Implantation Bilaminar embryo
3
Q
What is fertilisation?
A
Spermatozoon penetrates corona radiata and zona pellucida
Oocyte nad sperm membrane fuse
Causes 2nd mitotic division and activation of egg by influx of Ca2+
Formation of diploid chromosome
4
Q
What is cleavage?
A
Repeated mitotic division of zygotes into blastomeres that pack into a morula
Anatomy
flashcards
Decks in class (40)
# Cards
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Foramen of the skull8
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Theme 214
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Infratemporal fossa12
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Pterygopalatine fossa7
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Muscles of the tongue12
-
Theme 74
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The pharynx25
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Gas exchange19
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Vertebra15
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Posterior triangle18
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Anterior triangle12
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Carotid artery and CN in the neck26
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Lymphatic drainage12
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Muscles of facial expression17
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Nerve and blood supply of the face20
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Infratemporal fossa27
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Temporomandibular joint23
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Autonomic nervous system18
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Pterygopalatine fossa15
-
Nose15
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Parotid gland and styloid apparatus12
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Submandibular region19
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Tongue and oral cavity38
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Anatomy of the pharynx47
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Soft palate21
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Larynx27
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Functions of larynx23
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Early embryogenesis18
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Gastrulation12
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Development of the pharynx8
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Pharyngeal arch31
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Development of the face33
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External ear3
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Middle ear9
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Inner ear and facial nerve13
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Osteology of orbit26
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The orbit and the eye21
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Interior cranium20
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Internal cranium20
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Clinical anatomy of interior skull33
