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प्रश्न
With a suitable diagram, describe the organisation of mammary gland.
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उत्तर
A functional mammary gland is characteristic of all female mammals. The mammary glands are paired structures (breasts) that contain glandular tissue and variable amount of fat. The glandular tissue of each breast is divided into 15 – 20 mammary lobes containing clusters of cells called alveoli. The cells of alveoli secrete milk, which is stored in the cavities (lumens) of alveoli.
The alveoli open into mammary tubules. The tubules of each lobe join to form a mammary duct. Several mammary ducts join to form a wider mammary ampulla which is connected to lactiferous ducts through which milk is sucked out.
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संबंधित प्रश्न
Describe the human female reproductive system with a labelled diagram.
What happens in a girl’s body under the influence of hormones?
Give appropriate term for the following:
The onset of reproductive phase in a female.
The diagram alongside is the vertical section of female reproductive organs. Study the diagram and answer the questions that follow:
(i) Name the fully developed part of ovary containing the ovum.
(ii) Name the organ of the female body in which the foetus develops.
(iii) What is ovulation?
(iv) Which two hormones are secreted by ovary?
Name the Following
The structure formed after the release of ovum from the Graffian follicle.
Write the functional activity of the following structure:
Ovary
Multiple Choice Question:
Corpus luteum in mammals occurs in
A neat labelled diagram describes the parts of a typical angiospermic ovule.
Which part of the fallopian tube collects to ovum after ovulation?
Identify the odd one from the following.
Endometrium undergoes cyclical changes and help in uterine movements.
Where does fertilization take place?
How does fertilisation take place? Fertilisation occurs once in a month. Comment.
In human beings, the correct sequence of events during reproduction is
Anterior lobe of pituitary secretes:
______ acts as a birth canal.
One mature ovum is released once every ______ days.
Write the specific location of the following:
Uterus
Define the following term:
Hymen
Median vertical depression of external genitalia in females, enclosing the urethral and vaginal opening is ______.
