The embryo inside the uterus is protected from jerks and mechanical shocks by ___________.

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Solution

Amniotic fluid:
Amniotic fluid fills the space between the amnion and the embryo.
It protects the embryo from physical damage by jerks or mechanical shocks. For example, when the mother falls over.
It keeps even pressure all around the embryo.
Amniotic fluid allows the fetus some restricted movements.
Final answer: The embryo inside the uterus is protected from jerks and mechanical shocks by amniotic fluid.

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The organ A which is located inside the skull of our body is protected by a bony box B and it is surrounded by three membranes C. The space between the membranes is filled with a liquid D which protects the organ A from mechanical shocks. The organ A in combination with another organ E makes up the central nervous system.

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(b) What are (i) B (ii) C, and (iii) D ?

(d) While walking barefooted, if we happen to step on a sharp piece of stone, we immediately lift our foot up. Which of the two organs, A or E, is directly involved in this action ?

(e) If we step out from a darkened room into bright sunshine, we close our eyes for a moment. Which of the two organs, A or E, is directly involved in this action ?

Q. The organ A which is located inside the skull of our body is protected by a bony shell B. It is surrounded by three layers membranes C. The spaces between these layers are filled with a liquid D which protects organ A from mechanical shocks. Organ A in combination with another organ E makes up the central nervous system.

(a) What is organ A?
(b) What are B, C and D?
(c) Name the organ E.
(d) While walking barefoot, if we happen to step on a sharp piece of stone, we immediately lift our foot up. Which of the two organs: A or E, is directly involved in this action?
(e) If we step out from a darkened room into bright sunlight, we close our eyes for a moment. Which of the two organs: A or E, is directly involved in this action?

Q. The _____ serves as a shock-absorbing medium and protects the brain against shocks and jerks.

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The a fluid-filled sac, surround and protects the embryo from mechanical shocks and keeps it from drying out

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