Page 2 - 3. Home Assignment (Obj & Subj)-Structure of skeleton

8 Two bones are joint with each other by an elastic band-
a) Cartilage
b) Ligaments
c) Tendon
d) Muscles
9 The last two pairs of the rib cage are called floating ribs as-
a) They are not attached to any side of the skeleton.
b) They are attached in the back.
c) They are not attached in front.
d) They are not attached in the back.
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The function of Cartilage-
i) It is a tissue that prevents the bones from rubbing against each
other.
ii) It acts as a cushion between the two bones at the joint
iii) At joints, the two bones are held together by strong and elastic
bands of cartilage.
a) Option (i) & (ii) are correct.
b) Option (iii) & (ii) are correct.
c) Option (i) & (iii) are correct.
d) Option (i) ,(ii) & (iii) correct.

Subjective-

SL. Questions Mark Skill
No.
Q.1 Which is the smallest bone in the human body and where 1 E
is it found?
Q.2 What are floating ribs? 1 E

Q.3 a) How many bones are present in the back bone? 3 Av
b) What are these small bones also called as?
c) What type of joint is present inbetween the bones of the
backbone? What will happen if these joints become fixed joints?
Q.4 a) Name the part of the skull that is movable. 3 Av
b) What will happen if the above part becomes fixed?
c) Give a suitable example?
Q.5 a) Name the largest bone in the body of the human being. 3 D
b) Where it is present?
c) How it is attached to the skeleton?
Q.6 Ravi wanted to know more about the rib cage. He took a 3 H
deep breath and held it for a few minutes and tried to feel
the bones in his chest.
a) What would have been the shape of these bones
that he must have felt?
b) How may pairs of ribs would he have identified?
c) To which bones do these ribs join in the front and
back?

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