Muscles MS

Which muscle is contracted when the arm is bent at the elbow?

• Triceps

• Biceps

• Radius

• Ulna

Which type of muscle cell is characterized by the presence of intercalated discs?

• Skeletal muscle cell

• Cardiac muscle cell

• Smooth muscle cell

• None of the above

Which type of muscle is found in the heart?

• Striated

• Cardiac

• Smooth

• Skeletal

Fill in the blank: Skeletal or _______ muscles are under conscious control and are often attached to bones.

• Cardiac

• Smooth

• Striated

• Involuntary

Smooth muscles are controlled by which system?

• A) Autonomic nervous system

• B) Central nervous system

• C) Peripheral nervous system

• D) Somatic nervous system

Give some examples of where smooth muscle is found.

• blood vessels

• intestines

• trachea

• iris of the eye

• heart

What type of control is skeletal muscle under?

• Voluntary/somatic

• Autonomic\ involuntary

Skeletal muscle is ______ in appearance.

• Smooth

• Striated

• Rough

• Soft

What is the basic theory of muscle contraction?

• Sliding filament theory

• Elastic band theory

• Tension theory

• Compression theory

In the sliding filament theory, which filament is the thin one?

• Myosin

• Actin

• Sarcomere

• Filament