Functions
What the most important function of the muscular system?
Movement! The muscular system provides body movement and posture.
What type of muscle has voluntary muscle movements?
Straited: is the only muscle group that has voluntary movements. Is made up of long, thin cells that have stripes or bands across them.
What is a muscular spasm?
An involuntary muscle contraction.
Do your muscles work together?
Yes, for example, when you take a step 200 muscles work together just to lift your foot.
What percent of your total body weight is from the muscular system?
30-40%
Does breathing and the muscular system work together?
Yes, breathing involves the diaphragm muscle, when the diaphragm contracts it pushes downward causing your chest cavity to enlarge.
What type of muscle keeps the heart beating and in rythm?
Cardiac muscle! This is an involuntary muscle that is found only in the heart. This muscle receive approximately 75 stimuli per minute
Is cerebral palsy a muscular disease/condition?
Yes, it is an impairment or a loss of motor function and control due to brain damage.
A- Standing up
B- Sperm cells
C- Smiling
B. Sperm cells are not influenced by the muscular system.
True or false? Humans have over 600 named skeletal muscles.
True! These are responsible for the voluntary movements of the human body which means these are skeletal muscles we can move on our own.
True or False: Urination works with your muscular system.
It is true, your muscles and nerves must work together to hold and release urine from your bladder.
What type of Muscle is controlled by the nervous system?
Smooth muscle! This muscle is also involuntary and it found in internal organs, blood vessels, skin and glands.
Yes, it is a chronic pain condition
What does the third type of contraction do?
Where are your smallest muscles in the body located?
A- In your toes
B- Fingers
C- Inner ear
C! Your smallest muscles are located in your inner ear, they include the tensor tympani and the stapedius, and they connect to your eardrum and hold your inner ear together.
What does your vision have to do with the muscular system?
A- Helps you maintain a stable image
B- Scans the area around you
C- Tracks moving objects
D- All of the above
D! All of the above, skeletal muscles around the eye control its movements.
What is excitability?
The ability of muscle tissue to respond to stimuli.
What is Myasthenia gravis?
A. auto immune disorder that leaves muscles weak and fatigued
B. An infection inside the muscles
C. a rare disease that is only found in babies
Correct! An auto immune disorder that leaves muscles weak and fatigued.
Are your skeletal muscles connected to the somatic nervous system?
Yes, they are. Wherever they occur. Which is why we have almost complete control over their movements.
What is the hardest working muscle in the body?
Your heart! On average it pumps about 2,500 of blood a day.
What does the muscular system help protect in your body?
Your internal organs. At the front, sides, and back of the body.
What is muscle toning?
A continuous, passive partial contraction of muscles.
What is worse, a sprain or a strain?
Yes, a sprain is worse then a strain because a sprain involves stretched or torn ligaments.
How many types of muscle fibers does the muscular system have?
2. The slow twitch and fast twitch. Fast twitch react instantly when they are triggered but use energy up fast and tire out and slow twitch are endurance cells, so they react slowly to be able to work for longer periods.
True or false? Muscles can only pull and not push.
True! For example, when you push a door open your muscles are pulling your elbow and shoulder against the door.