Q7 of 386 Page 161


(a) Identify figures A and B.


(b) Label X, Y and Z.


(c) Which one act as impulse booster?


(d) Which one is under control our will?

(a) cardiac muscle fibres (Fig A) and striated muscle fibre (Fig B).

(b) X – Intercalated disc; Y – Light band; Z – Dark band


(c) Intercalated disc of cardiac muscle acts as an impulse booster


(d) Striated muscles are also known as voluntary muscle as their movement is under control of our will


More from this chapter

All 386 →
5

(a) Identify the figure. What is its function

(b) Label V and W


(c) Label X, Y and Z


(d) W loses its nucleus in the mature state, still it remains alive. Explain how


 6



(a) Identify figures A and B.


(b) Which is called tesselated and payement epitheliurn?


(c) Which one lines the gastrointestinal tract and epiglottis ?


(d) Which one allows diffusion of substances ?

 8

(a) Identify the figure

(b) Label W, X, Y and Z


(c) What is chemical composition of material of the figure


(d) What of the function of X?


 1

Cuboidal : Epithelial :: Cardiac : .............

(a) nervous (b) connective


(c) epithelia (d) muscular