MCQ
Thymus gland releases ...... hormone
- A$T_{4}$
- B$T_{3}$
- ✓$Thymosins$
- D$TCT$
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$I.$ From atria to ventricles
$II.$ From ventricles to pulmonary artery
$III.$ From pulmonary artery to aorta
Choose the correct option
$(i)$ These muscle fibres taper at both ends and do not show striations.
$(ii)$ The wall of internal organs such as the blood vessels, stomach and intestine contain this type of muscle tissue.
$(iii)$ They are 'involuntary' as their function cannot be directly controlled.