Major Muscles!
It's a Cellular Thing
Motorin' on
Smooth Move
I Heart Muscle
100
This is the muscle of mastication.
What is the masseter?
100
The basic contracting unit of skeletal muscle is this.
What is the sarcomere?
100
The neuron and all the muscle fibers it innervates is called this.
What is a motor unit?
100
When the cells of smooth muscle are arranged in sheets, it is referred to as this.
What is visceral smooth muscle?
100
Cardiac muscle is composed of this.
What is striated involuntary muscle?
200
This muscle forms the floor of the muscular abdominal wall.
What is the rectus abdominis?
200
Oxygen is stored in these molecules in muscle fibers.
What is myoglobin?
200
The space between the nerve end and the sarcolemma of the muscle is called this.
What is the synaptic cleft (or synaptic space)?
200
Smooth muscle cells that are located in the iris of the eye and blood vessels are referred to as this.
What is multiunit smooth muscle?
200
The junctions between adjacent cardiac muscle fibers are called this.
What are intercalated disks?
300
A muscle that forms a tight circular band is known as this.
What is a sphincter?
300
The cell membrane of a muscle fiber is called this.
What is sarcolemma?
300
There can ben 100+ muscle fibers per motor unit in __________ muscles.
What are large muscles?
300
Smooth muscle has this many nuclei per cell.
What is one?
300
Cardiac muscle fibers have this many nuclei per cell?
What is one?
400
This is the large muscle of the caudal aspect of the lower hind leg.
What is gastrocnemius?
400
This is the outer covering of the entire muscle.
What is the epimysium?
400
This compound provides energy to convert adenosine diphosphate back to adenosine triphosphate.
What is creatine phosphate?
400
Visceral smooth muscle can contract without the need for __________ stimulation.
What is external stimulation?
400
This structure functions as the heart's pacemaker
What is sinoatrial node?
500
This muscle is responsible for twitching the skin
What is cutaneous trunci?
500
In skeletal muscle, this the the large white band made of actin.
What is the I band?
500
This is the site where a motor nerve connects with a muscle fiber.
What is the neuromuscular junction?
500
Smooth muscle reacts strongly to this sensation.
What is stretching?
500
A transplanted heart will function normally without having this capability "rewired."
What is nerve supply?
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