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Worksheets4.2 HBS Final
Total questions: 20
Worksheet time: 20mins
Where is the cardiac muscle found in the body?
In the walls of hollow organs
In the walls of the heart
Around the skeleton
In between the ribs
What is the function of skeletal muscle?
Movement of the human body
Pumping blood through the heart
Propelling food towards the stomach
Moving the inflate the lungs during inhalation
What is the structure labeled #4?
Fascicle
Perimysium
Muscle fiber (cell)
Epimysium
What happens to the shape of muscle when it contracts ?
Elongates and thins
Dilates
Becomes round
Shortens and becomes thicker
What is the shape of smooth muscle?
Football
Heart
Square
Triangle
What categorizes a bone as the origin of a muscle?
Corresponds to the bone that doesn’t move during contraction
Corresponds to the bone that dies move during contraction
Located in the arm
Has a tendon connecting the bone
What categorizes a bone as the insertion of a muscle?
Corresponds to the bone that doesn’t move during contraction
Connected by a ligament
Corresponds to the bone that is in motion during contraction
Moves along with other muscles
How can you determine the function of a muscle by simply looking at the anatomy?
Look at its shape
Look at the tendons connecting it
Identify the muscle that is next to it
Identify the two points the muscle is attached to and what joint it crosses
How would you determine the loacation of the tibialis anterior muscle?
Analyze the name by looking at prefixes, suffixes, bone-related names, anatomical terms, and shape-related words
Look at the shape of the muscle
Identify the joint it crosses
Identify the two points it attaches to
How would you determine if a muscle is smooth, cardiac, or skeletal?
Look at whether it is voluntary or striated only
Look at whether the muscle is voluntary and/or striated and it’s location in the body
Look at only the loacation
Watch how the muscle moves when it contracts
Why does the muscle in your skin involuntarily contract when you’re cold?
The prolonged quick contraction and relaxation of our muscles generates heat
It is a vestigial trait
It grows the hair on our legs and arms
To give goosebumps
Why do you need to do multiple excercises to effectively build and tone muscles?
You don’t need to, you should only work one area of your body at a time
So one part of your body doesn’t look bigger than the rest of your body
The bones can build along with the exercises
Each muscles performs a different action, so you need to exercise ever action that each muscle performs
What distinguishes a tendon from a ligament?
A tendon connects muscle to bone, a ligament connects bone to bone
A tendon connects bone to bone, a ligament connects bone to muscle
A tendon is thinner, a ligament is thicker
A tendon bends, a ligament does not
How could you name a muscle?
By the joint is crosses
By the size and location only
By what type of muscle it is
By the location, size, function, shape, and bone-relation.
Why does cardiac muscle have a “branched” shape?
So they contract faster
So each muscle cell can touch each other during contraction to produce a more powerful contraction
So the muscle works involuntary
So the heart pumps an increased amount of blood
What impact does muscle contraction have on homeostasis?
It has no impact
Constant muscle contraction cools the body
Muscle contraction helps maintain our lymph concentration
Constant muscle contraction creates heat (shivering while you’re cold)
What would happen if all of our muscle was under conscious effort?
There would be no impact on the body
The brain wouldn’t be able to handle the concentration of all the muscles, so we wouldn’t be able to focus on anything else
The brain would go into overdrive and make every muscle move quicker
Our bodies would begin to decompose because the brain can’t handle the conscious effort needed to move every muscle
What influence does the structural makeup of the muscle have on its function?
Structure does not relate to function
Tiny fibers all contract together in order to perform a stronger contraction all together
There are big fibers that flex at different times to contract
Tiny fibers contract all together but make a weaker contraction
What would happen if there was an injury to a specific muscle group on the body?
We use all of our muscles in a day, so it would impact our daily lives if any muscle were to be injured
An injury to a muscle group would have no affect on the body
An injury would help the body to build muscles
An injury would impact our daily lives, but would have no long term affect
What would happen if the muscle didn’t have perimysium?
There would be no affect on the muscles
The muscle fibers would start to break slowly
The muscles would rub against the bone, causing irritation, swelling, and even changing the shape of the muscle
The muscles would work regularly, but deteriorate over time.
