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Oogenesis originates within the
a. follicle.
b. uterine tube.
c. uterus.
d. corpus albicans.
Introduction:
Oogenesis is the process of formation matured ovum from primordial germ cells. It starts before the birth of a female and is arrested at prophase I until the attainment of puberty. After puberty, the halted division of the germ cell again restores and halts at metaphase II until fertilization.
Answer to Problem 1PL
Correct answer:
The correct answer is option (a) follicle.
Explanation of Solution
Explanation/justification for the correct answer:
Option (a) follicle. A follicle is a small sac filled with fluid and has an immature egg. The development of a follicle starts in the embryonic stage of an individual when the gametogonia transform into oogonia and become surrounded by pre-granulosa cells. So, the correct answer is option (a).
Explanation for incorrect answer:
Option (b) uterine tube. Uterine tubes or the fallopian tubes are the structures that connect the uterus from the ovaries. Every month, during ovulation, a mature ovum is released in the uterus through this tube. In the presence of sperms, fertilization occurs in the fallopian tubes. So, this is an incorrect option.
Option (c) uterus. The uterus is a muscular organ present between the rectum and the bladder in the pelvic region of a female body. It receives fertilized or unfertilized eggs from the ovary through the fallopian tubes. In the case of fertilization, the zygote is implanted in the uterus. So, this is an incorrect answer.
Option (d) Corpus Albicans. Corpus Albicans is the degraded stage of corpus luteum. In the absence of fertilization, the corpus luteum is attacked by fibroblasts and macrophages to degrade it into type I collagen through the process of luteolysis. So, this is an incorrect answer.
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