What is elastic cartilage?

Match the type of cells in Column $\mathrm{I}$ with the organs they are part of, listed in Column $\mathrm{II}:$

Choose the CORRECT combination.

Study the following statements and identify the correct statements-
$\mathrm{I})$ Microglial cells keep the cerebrospinal fluid in the ventricles of brain in constant circulation
$\mathrm{II})$ Arrector pili muscles are unstriated muscles
$\mathrm{III})$Basophils remove antigen-antibody complexes from the blood
$\mathrm{IV})$ Perichondrium is absent in fibrous cartilage

Choose the correct answer from the options.

Elastin protein is produced from _____ tissue. (connective / muscular)

Choose the right option from the bracket.

White fibre is produced by _____ protein. (elastin / collagen)

Choose the correct answer from the option.

Osteocyte cell is found in _____ tissue. (muscular / osseous)

Fill in the blank with the correct option given in the bracket.

The protein found in cartilage is _____. (ossein/chondrin)

Choose the correct option from the bracket:

The smallest blood cell is _____. (erythrocytes / thrombocytes)