मराठी

The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ______ (1). As the egg grows larger, the follicle enlarges and gets filled with a - Biology

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प्रश्न

The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ______ (1). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called the ______ (2) follicle. The process of releasing the egg from the ovary is called ______ (3). The ovum is picked up by the oviducal funnel and fertilization takes place in the ______ (4). In about a weak the blastocyst gets fixed in the endometrium of the uterus and this process is called ______ (5).

रिकाम्या जागा भरा

उत्तर

The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ovarian follicle (1). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called the Graafian (2) follicle. The process of releasing the egg from the ovary is called ovulation (3). The ovum is picked up by the oviducal funnel and fertilization takes place in the ampulla (4). In about a weak the blastocyst gets fixed in the endometrium of the uterus and this process is called implantation (5).

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2013-2014 (March) Science Paper 3

संबंधित प्रश्‍न

Which hormones regulate menstrual cycle?


Complete the following sentences with appropriate word:

The human gestation period is about ____________.


Identify the phase of the menstrual cycle during which there is a peak in the level of progesterone.


Match the Columns.

  Column I   Column II
i. Proliferative phase a. Breakdown of the endometrial lining
ii. Secretory phase b. Follicular phase
iii. Menstruation c. Luteal phase

Corpus luteum develops under the influence of ______.


What role does pituitary gonadotropins play during follicular and ovulatory phases of menstrual cycle? Explain the shifts in steroidal secretions.


Which of the following statement is correct?


Given below is the diagram depicting the menstrual cycle in human beings. Study it carefully and answer the questions that follow.

  1. Which phases are indicated by ‘C’ and ‘D’?
  2. Name the structures labelled ‘F’. What is its role?
  3. Explain the changes in the level of progesterone during phases ‘C’ and ‘D’.
  4. Which hormone present in the urine confirms pregnancy in human beings?
  5. Identify the structure labelled ‘E’. Name the hormone released by it.

The egg is passed down through the oviduct by muscular contractions.


Complete the following table by writing the name of the structure or the function of the given structure:

  Structure   Function
1. Corpus luteum 1. ______
2. ______ 2. Produces male gametes in mass
3. Leydig cells 3. ______
4. ______ 4. Stores the sperms until they mature and become mobile
5. Umbilical cord 5. ______
6. Fallopian tube 6. ______

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