Which type of placenta is characteristic of cattle and sheep?
Correct answer: C. Cotyledonary synepitheliochorial
- A. Diffuse epitheliochorial
- B. Zonary endotheliochorial
- C. Cotyledonary synepitheliochorial
- D. Discoid haemochorial
Explanation
Ruminants have a cotyledonary placenta, with fetal cotyledons joining maternal caruncles to form placentomes. The other patterns are associated mainly with species such as horses, dogs, cats, rodents, and primates.
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About Theriogenology and Animal Reproduction
Covers the reproductive anatomy and physiology of male and female domestic animals, including puberty, oestrous cycles, ovulation, fertilisation, pregnancy, parturition and lactation. It also includes artificial insemination, semen evaluation, pregnancy diagnosis, infertility, dystocia and reproductive disorders, with attention to species differences.
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