Advertisements
Advertisements
Questions
Name the function of the following:
Corpus luteum
State the main function of the corpus luteum.
Advertisements
Solution
It secretes progesterone, a hormone that prepares the uterus for implantation. If implantation fails, the corpus luteum goes inactive and degenerates. If an embryo is implanted, the corpus luteum continues to release progesterone until the fourth month of pregnancy, when the placenta takes over this function.
RELATED QUESTIONS
Describe the role of pituitary and ovarian hormones during the menstrual cycle in a human female.
Explain the events that occur in a graafian follicle at the time of ovulation and thereafter.
Define the following term :
Ovulation
What is menstrual cycle? Describe it in brief.
Sketch the labelled diagram.
Menstrual cycle
Observe the figure and answer the questions given below.
a) What does the above figure indicate?
b) Which human organs are involved in this process?
c) Name the hormones responsible for this process.
d) After how many days these repetitive changes take place?
e) ‚A woman should stay away from others, as her body is impure during this process.‛ What is your opinion about this statement? Elaborate it.
Define: Menarche
Name the Following
Sloughing of the uterine wall during menstrual flow.
Name the Following
The term used when females stop menstruation at the age of 45-50 years.
Describe the structure of a Graafian follicle.
Write the answers to the following questions by observing the figure below.
- What does the figure above show?
- Which organs are involved in this process?
- Which hormones are involved in this process?
- After how many days do these changes happen again?
- Explain your opinion about the statement that a woman's body is impure while the above process is going on.
Explain the importance of cleanliness during the time of menstrual cycle in girls.
Read the following passage and answer the question that follows:
Rahini and her parents were watching a television programme. An advertisement flashed on the screen which was promoting the use of sanitary napkins. Rahini’s parents suddenly changed the channel, but she objected to her parents and explained the need and importance of such an advertisement.
What is first menstruation called? When does it occur?
Detection of which hormone in urine is an indicator of pregnancy?
In humans, the menstrual cycle is generally of ______.
In the absence of fertilization, corpus luteum ____________.
____________ is transformed to corpus luteum during luteal phase of the menstrual cycle.
Corpus luteum develops under the influence of ______.
The mammalian corpus luteum produces ______.
Secretion of progesterone by corpus luteum is initiated by ______.
Ovulation in the human female normally takes place during the menstrual cycle ______.
Menstruation is triggered by a sudden decline in the amount of hormone secreted by corpus luteum. Identify the hormone.
Corpus luteum develops from ______.
Hormones responsible for menstrual cycle are produced from ______.
Menstrual flow occurs due to lack of ______.
The main function of mammalian corpus luteum is to produce ______.
The secretory phase in the human menstrual cycle is also called:
The menstrual cycle begins with ______
Identify the correct statement from the following:
Which of the following statement is correct?
Write a short note on Proliferative Phase.
Complete the table:
| Number | Type | No. of pairs | Region |
| C1C8 | Cervical | ______ | Neck |
| T1T12 | ______ | 12 pairs | ______ |
| L1L5 | Lumbar | ______ | Lower back |
| S1S5 | ______ | 5 pairs | ______ |
| CO1 | Coccygeal | ______ | ______ |
Name the following:
The permanent stoppage of menstruation in human females around the age of 45 years.
The egg is passed down through the oviduct by muscular contractions.
The first menstruation is called ______.
Which of the following statements are correct regarding female reproductive cycle?
- In non-primate mammals cyclical changes during reproduction are called oestrus cycle.
- First menstrual cycle begins at puberty and is called menopause.
- Lack of menstruation may be indicative of pregnancy.
- Cyclic menstruation extends between menarche and menopause.
Choose the most appropriate answer from the options given below:
