Muscular System #1
This muscle type is voluntary.
What is skeletal?
Which is not a function of the muscular system?
A. Movement
B. Posture
C. Food moving through the digestive tract.
D. Gas exchange
D. Gas exchange
Movement away from the midline of the body
What is abduction?
Angle at joint increases
Extension
Facing down
Pronation
The term for movement towards your body
What is Adduction?
Attaches muscle to bone.
Tendon
State of body that develops hours after an organism's death and causes the body to become stiff due to a lack of ATP to keep myosin attached or to unattatch it from actin filaments.
Rigor Mortis
Angle at joint decreases
Flexion
True or False. You need Ca++ and ATP for muscles to function.
True
This type of muscle lines hollow organs, such as blood vessels and the digestive tract.
Smooth Muscle
The thick filament in skeletal muscle is called_______________.
Myosin
The term used to describe when myosin head attaches to and pulls at the actin filament during contraction of a skeletal muscle.
Power stroke
Which two of the three muscles types, skeletal, smooth and cardiac are most similar to each other?
Cardiac & Smooth
The term/theory that is given for when myosin and actin slide over one another during skeletal muscle contraction.
Sliding Filament Theory
This type of muscle is striated, voluntary and contains many nuclei.
Skeletal
The thin filament in skeletal muscle is called ______________.
Actin
A single brief contraction.
Twitch
Facing up
Supination
One section of skeletal muscle is called a _______________.
sarcromere
This muscle is striated, branching, involuntary and contains only one nucleus.
Cardiac
In this disorder, lysosomes do not have properly functioning enzymes to remove excess glycogen so the lysosomes burst in the muscles cells and eventually lead to death, if left untreated.
Pompe Disease
When you flex and extend a muscle during movement. Type of exercise where muscle is continuously contracted/flexed then relaxed. Ex., bicep curl
Isotonic movement
When you hold a muscle in a contracted state during movement. Ex., plank
Isometric
In the ____zone you can only see the myosin filaments.
H zone