Zoo 3603c - Study guides, Class notes & Summaries

Evo of Regeneration: what do we mean by regeneration at the molecular level? constant biochemical turnover, so at this level everything regenerates Evo of Regeneration: what do we mean by regeneration at the cellular level? cells are perfect regenerators, constantly replacing cytoplasm. Constantly replacing red blood cells. Evo of Regeneration: why types of tissues can be regenerated? vasculature skeletal muscle flexible lungs liver Evo of Regeneration: what type of regeneration does t...

How has developmental biology impacted modern medicine? IVF (in vitro fertilization) teratology - study of congenital abnormalities Birth defects, prenatal diagnosis cloning What is regulation? the ability to respecify cells so that the removal of cells destined to become a particular structure can be compensated for by other cells producing that structure Who discovered Regulation? Roux What is determination? the second and irreversible stage of a cell or tissue commitment in which t...

Axonal Guidance: where are motor neurons produced? ventral spinal cord Axonal Guidance: what is the optic vesicle? an outgrowth of the forebrain neuroepithelium, the developing eye Axonal Guidance: how is he lens induced? When the optic vesicle meets the surface ectoderm, the lens is induced in the ectoderm Axonal Guidance: what are the layers of the developing eye? neural retina - inner layer of optic vesicle pigmented retina - outer layer of optic vesicle Sclera - formed from neural...

Trigger for Limb DevelopmentDecreasing food, decreasing reproductive opportunities, more competition From which group of fish did tetrapods arise from?Ray-finned fishes (actinopterygii) and lobe-finned fishes (sarcopterygii) Which ancient fish limbs is more likely to have evolved into tetrapod limbs?Coelacanth fin strucutre (homologous elements) What digit limb evolved first?Five digit limbs (not a basal trait of all tetrapods) Pentadactyl limbsBetter weight bearing (fin with a wrist)

Embryology exam 1.....................4. What is the cavity within a secondary follicle? a. Graffian follicle b. Theca folliculi c. Granulosa cells d. Zona pellucida e. Antrum 5- What is the main hormone which stimulates the growth of the follicles and the production of estrogen by the follicular cells? a. FSH b. LH c. HCG d. Estrogen e. Progesterone 6- What is the female organ called where gametogenesis occurs? a. Oogenesis b. Ovary c. Ovulation d. Oocyte 7- Which stage of the folli...

Langman’s Medical Embryology 9th Edition : Medical Embryology |Langman’s Medical Embryology 9th Edition : Medical Embryology |Langman’s Medical Embryology 9th Edition : Medical Embryology |Langman’s Medical Embryology 9th Edition : Medical Embryology