Muscular System

What are the three types of muscles found in the human body?

• Skeletal, Cardiac, and Smooth

• Skeletal, Cardiac, and Rough

• Cardiac, Smooth, and Elastic

• Smooth, Elastic, and Skeletal

Which type of muscle is responsible for voluntary movements?

• Involuntary muscle

• Skeletal muscle

• Smooth muscle

• Cardiac muscle

What is the role of tendons in skeletal muscles?

• They connect muscles to nerves

• They connect muscles to skin

• They connect muscles to bones

• They connect muscles to other muscles

Where is cardiac muscle found?

• In the brain

• In the stomach

• In the heart

• In the lungs

What is the function of intercalated discs in cardiac muscle?

• They allow rapid spread of electrical signals

• They store energy

• They provide structural support

• They produce hormones

Which nervous system innervates cardiac muscle?

• Somatic nervous system

• Autonomic nervous system

• Central nervous system

• Peripheral nervous system

What is the primary function of smooth muscle in the digestive tract?

• To absorb nutrients

• To push material along

• To produce digestive enzymes

• To store food

How do smooth muscle cells differ in appearance from skeletal muscle cells?

• They are branched

• They have multiple nuclei

• They are spindle-shaped

• They are striated

Which muscle type is not striated?

• Cardiac muscle

• Skeletal muscle

• All muscle types are striated

• Smooth muscle

What is a common structural feature of all three muscle types?

• They all contain myofilaments

• They all are under voluntary control

• They all have a single nucleus

• They all have sarcomeres