Muscular System Lecture Review

Study cards regarding the functions, statistics, and basic structures of the human muscular system.

What are the primary functions of the muscular system described in the transcript?

Muscles hold the body erect, make movement possible, generate heat, move food through the digestive system, move fluids through ducts and tubes, and aid blood flow through veins.

What percentage of the body's heat is generated by muscle movement?

Nearly $85\%$

How does walking specifically support the circulatory system?

It aids the flow of blood through veins as it returns to the heart.

What is the musculoskeletal system?

The joint term for the muscular and skeletal systems working together.

What four primary benefits do the interactions of the muscular and skeletal systems provide to the body?

form, support, stability, and the ability to move

Approximately how many muscles does the human body have?

more than $600$ muscles

What percentage of the body's weight is made up of muscles?

about $40\%$ to $45\%$

What are skeletal muscles made of, and what provides their covering?

Skeletal muscles are made up of fibers and are covered with Fascia.

How are skeletal muscles attached to bones?

by tendons

What is the definition of muscle fibers according to the notes?

The long slender cells that make up muscles.

What material binds groups of muscle fibers together within each muscle?

connective tissue