Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?
Biceps of upper arm-smooth muscle fibres
Abdominal wall-smooth muscle
Iris- InVoluntary smooth muscle
Heart wall-Involuntary unstriated muscle
The biceps of the upper arm are striated muscles. The abdominal wall is of smooth muscle. The involuntary muscles help with the pumping of blood in the heart. Iris has sphincter muscle.
Hence option 2 is correct.