Muscular System

Our intestines are an example of what type of muscle

• Cardiac

• Smooth

• Skeletal

it is the striated or voluntary muscle

• cardiac muscle

• smooth muscle

• skeletal muscle

it refers to the fixed or prominal attachment of muscles to a stable bone

• insertion

• origin

• action

it refers to the attachment of a muscle to a more moveable bone

• insertion

• origin

• action

it is an involuntary, non-striated muscle.

• cardiac muscle

• skeletal muscle

• smooth muscle

What is this structure?

A sarcomere is

• A protein filament or fiber
• The basic contractile unit of muscle contraction
• An organelle
• An organ

The part of the sarcomere that A (green) refers to is the?

• Z Line
• M Line
• H Line
• A Line

The part of the sarcomere that C (Blue) refers to is the?

• Actin
• Myosin
• Troponin
• Tropomyosin

The part of the sarcomere that D (Red) refers to is the?

• Actin
• Myosin
• Troponin
• Tropomyosin