- ova) and female hormones. Each month, during the menstrual cycle, an egg is released from one ovary. The egg travels from the ovary through a fallopian tube to the uterus. The ovaries are the main source of female hormones (estrogen and progesterone). These hormones control the development of female body characteristics, such as the breasts, body shape, and body hair. They also regulate the menstrual cycle and pregnancy.
Medical dictionary. 2011.
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egg sac — noun 1. : egg case 1b 2. : one of a pair of egg masses that project into the water from the first abdominal segment of certain crustaceans (as most copepods) * * * egg sac, 1. the silken cocoon in which the eggs of most spiders are deposited and… … Useful english dictionary
egg sac — (Subclass Copepoda): A batch of one or more eggs contained within a sac like membrane that remains attached to the genital opening(s); typically paired [Boxshall and Halsey, 2004] … Crustacea glossary
egg sac — the envelope enclosing the ova of a fish … Dictionary of ichthyology
egg pouch — egg sac … Dictionary of ichthyology
egg case — noun 1. a. or egg capsule : a protective case enclosing eggs (as of certain insects and mollusks) : ootheca see sea necklace b. or … Useful english dictionary
Sac — abbr. (in the UK) Senior Aircraftman. * * * abbreviation Strategic Air Command * * * saclike, adj. /sak/, n. a baglike structure in an animal, plant, or fungus, as one containing fluid. [1735 45; < L saccus SACK1] * * * abbrev … Useful english dictionary
sac — abbr. (in the UK) Senior Aircraftman. * * * abbreviation Strategic Air Command * * * saclike, adj. /sak/, n. a baglike structure in an animal, plant, or fungus, as one containing fluid. [1735 45; < L saccus SACK1] * * * abbrev … Useful english dictionary
Egg (biology) — Bird eggs and others (click on image for key) … Wikipedia
Egg tooth — In some egg laying animals, the egg tooth is a small, sharp, cranial protuberance used by offspring to break or tear through the egg s surface during hatching. It is present in most birds and reptiles, and similar structures exist in monotremes,… … Wikipedia
egg apparatus — noun : a group of three cells at the micropylar end of the embryo sac in seed plants consisting of the egg and two sterile cells * * * egg apparatus noun (botany) The egg and the synergidae in the embryo sac of an angiosperm • • • Main Entry:… … Useful english dictionary