The Musculoskeletal System 06/06

What are three types of muscles?  Give Example.

• Trapezius - Trapezius is a muscle on your back that is shaped like a upside down triangel. The Trapezius muscles are to move the scapulae and support the arm. 

• Rectus abdominis - Rectus abdominis known as abs are a pair of long flat muscles that is located in front of the body. The rectus abdominis is an important postural muscle.  It is responsible for flexing when doing sit ups.  

• Latissimus Dorsi - Latisssimus Dorsi is a large flat muscles located at the back of the body that stretches to the sides, behind the arm and is  right below the Trapezius also some muscels is covered by the Trapezius. The lastissimus dorsi is responsible for extension, adduction flexion from an extended position and internal rotation of the shoulder joint. 

Describe what agonist and anatagonist muscels are. 

Anatagonist muscels are a muscels that oppose the action of another.  

Agonist muscels contraction moves a part of the body directly. 

As one muscle contracts, the other relaxes.  When the triceps relaxes the biceps contracts to lift the arm.

Examples are below.

What are some movements in the body and examples of the movement in a sport? 

There are many movement in the body when playing sports.  The movement in the arms when throwing or passing a ball or any objects this is called elbow flexion and elbow extension. The movement in the hips and thighs,  it is used when running, jumping, walking and exercising . This movement is called hips flexion and hips extension.  The last movement I can think of is the knees and ankles,  this helps to kick a ball when playing soccer, this movement is called knee flexion and knee extension.  

Choose one activity we have completed in class and describe what your task was.

Whack a bone/ Poke a muscle

This activitiy we played an online game where we have to find the bone when starts. This game helped me to revise because it shows where the bone is and it will make you do it over and over again until you've got them all right.  

Poke a muscle is the same but instead you are poking the muscle,  same rules and everything.   This helps me to remember where all the muscles are it also have placed new muscle everytime you complete to the next level. 

These game were very useful for me as I was struggling to understand where all bones and muscle are in a human body when it was a class discussion.  This game was useful because it was a simple task and because it was a fun game which engaged me to learn where bones and muscle are.