Structure of Ovum & Menstrual Cycle

Good morning dear students.
Kindly first mark your attendance.

Today we will achieve the following Learning Outcomes :-
Students will be able to -
1. Explain the structure of Ovum in detail.
2. Understand & Analyse Menstrual Cycle and it's different phases.
3. Interpret & List the sequences of Hormonal Control of Menstrual Cycle.


Kindly write your notes in your register. Ask your doubts on blog / watsapp group.


Let's start with STRUCTURE OF OVUM.

I. In humans ovum is discharged from the graafian follicle (ovulation) with one polar body.
II. Each ovum is rounded & non-motile.
III. The size of the egg in man is 0.15mm.
IV. The cytoplasm of the egg is called "OOPLASM'. It contains very little yolk.
V. The peripheral membrane is covered by thin VITELLINE membrane which is further covered by ZONA PELLUCIDA.
VI. There is a narrow space between these two membranes which is called PERIVITELLINE SPACE.
VII. The outer surface of zona pellucida are covered by radially arranged cells called CORONA RADIATA.

MENSTRUAL CYCLE

MENOPAUSE


It usually occurs in women at the age group between 45-52 years.

I will also post a YouTube video link along with this blog for better understanding.
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HOME WORK

Kindly submit these questions today by 10:00 pm.
Answer according to the marks :-

1. When do the Oogenesis & the Spermatogenesis initiates in human females & makes respectively? [1]

2. Differentiate between Spermatogenesis & Spermiation. ? [1]

3. What is LH Surge? Give it's importance in the menstrual cycle? [2]

4. Differentiate between Menarche & Menopause. [2]

5. Mention the fate of Corpus Luteum & it's effect on the Uterus in the absence of fertilization of the ovum in human females. [2]

6. Differentiate between Spermatogenesis & Oogenesis. [3]

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I will now see you on 14th April according to Day 2 Time table.

Do ask your doubts.