Muscular System Concepts and Functions

The video tutorial covers Unit 3 Lesson 5 on the muscular system. It begins with an introduction to key vocabulary, including cardiac muscle, nerves, and voluntary muscles. The tutorial explains the function of muscles, their types, and how they work with bones to enable movement. It highlights the role of muscle pairs and tendons, focusing on the biceps and triceps. The discussion extends to leg muscles, particularly the calf muscle and Achilles tendon. The video concludes with an exploration of cardiac and smooth muscles, emphasizing their involuntary nature and functions in the body.

What is the primary function of cardiac muscle?

• To digest food

• To pump blood

• To move bones

• To transmit nerve signals

Which system does the muscular system work closely with to enable movement?

• Nervous system

• Digestive system

• Skeletal system

• Respiratory system

What is the origin of the word 'muscle'?

• Latin

• Greek

• German

• French

How do skeletal muscles work to move bones?

• By vibrating bones

• By rotating bones

• By pushing bones

• By pulling bones

What is the role of tendons in the muscular system?

• To connect muscles to bones

• To connect bones to bones

• To connect muscles to muscles

• To connect nerves to muscles

Which muscle is attached to the heel bone by the Achilles tendon?

• Biceps

• Quadriceps

• Triceps

• Calf muscle

What type of muscle is found in the heart?

• Cardiac muscle

• Skeletal muscle

• Voluntary muscle

• Smooth muscle

Which type of muscle is responsible for involuntary movements in the body?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Voluntary muscle

What is the function of smooth muscle in the body?

• To mix and churn food

• To pump blood

• To move bones

• To transmit nerve signals

Why is cardiac muscle considered involuntary?

• It is controlled by the skeletal system

• It operates without conscious thought

• It is controlled by the digestive system

• It requires conscious control