Skeletal Muscle
How many skeletal muscles are there in your body
400
How many hours of the day do cardiac muscles work for.
24 hours
Can smooth muscles remain contracted for long or short periods of time.
Long
About how many named muscles are there in the human body.
About 700 named muscles
Muscles are need to ______ and pump ______.
Breath and blood
Are skeletal muscles voluntary or involuntary
Voluntary
Are cardiac muscles voluntary or involuntary
Involuntary
Are smooth muscles voluntary or involuntary
Involuntary
What type of system is a muscle system
An organ system
Do muscles work by themselves, in pairs or in threes.
In pairs
The skeletal muscles are stronger than the cardiac muscles. True or False.
False. The cardiac muscles are the strongest muscle in the body
What type of organ does the cardiac muscle belong to.
The heart.
How many striations do smooth muscles usually have.
None
When one muscle in the pair _______ the other one _______.
Contracts and relaxes
The muscle can shorten up to how much of its original length.
A third
Skeletal muscles work by contracting. What does contracting mean.
Get smaller
How many nucleus are there per cardiac muscle cell.
1
Smooth muscles are the movement of which organs.
Intestines, esophagus and other internal organs.
Muscles produce body _____ and regulate _____ _________.
Heat and body temperature
The nerve releases a chemical called a __________.
Neurotransmitter
Where are the nuclei located in the skeletal muscle cells.
Along the edge of the cell.
The cardiac muscle is the movement of your ____ and certain ______ ________.
How many nucleus does a smooth muscle cell usually have and where is it located
1 and in the center of the cell
The muscular system circulates ______, maintains _______ and permits __________ of the body.
Blood, Posture and movement
Each muscle cell is made up of many smaller _______.
Myofibrils