Skin, Skeletal, and Muscular Systems: Muscles in the Body

The video explains that all humans have the same number of muscles, which vary in size. It describes the muscular system's role in movement, blood circulation, and digestion. Three muscle types are detailed: skeletal (voluntary and striated), smooth (involuntary, found in organs), and cardiac (involuntary, heart-specific). Skeletal muscles are attached to bones by tendons, while smooth muscles are in organ walls. Cardiac muscle is unique to the heart, working tirelessly throughout life.

What is the primary function of the muscular system?

• To store energy

• To enable movement and support bodily functions

• To protect internal organs

• To produce hormones

Which type of muscle tissue is responsible for voluntary movements?

• Cardiac muscle

• Skeletal muscle

• Smooth muscle

• Involuntary muscle

What is the unique feature of skeletal muscle tissue?

• It has narrow bands and is striated

• It operates without conscious control

• It is smooth and non-striated

• It is found in the heart

Where is smooth muscle typically found?

• In the heart

• Attached to bones

• In the skin

• In the walls of digestive organs and blood vessels

What is a key characteristic of cardiac muscle?

• It is found in the digestive system

• It is under conscious control

• It contracts in unison and works tirelessly

• It is attached to bones by tendons