The Electric Slide
Gainz
Move it and Groove it
Contraction Action
Muscle Makeup
100
What are the two types of protein filaments found within a sarcomere?
Double points: Which are thin and which are thick?
Actin- thin
Myosin- thick
100
What is the term for increasing muscle size and mass?
Hypertrophy
100
Which 2 movements are performed during a bicep curl?
Extension and flexion
100
What type of contraction is a quick, jerky response to a stimulus?
Twitch
100
What are the three types of muscle tissue we discussed?
Cardiac, skeletal, and smooth
200
What are the 2 things required in a muscle cell for a muscle contraction to occur?
ATP and calcium
200
Do you use heavy weight or light weight for strength training? Do you use low reps or high reps?
Heavy weight; low reps
200
Which point moves during a muscle contraction-- origin or insertion?
Insertion
200
What type of contraction helps us maintain our body posture?
Tonic contraction
200
What is represented by A and what is represented by B?
A: tendon
B: muscle body
300
The motor unit is made up of what?
The motor neuron and the muscle cell (fiber) it innervates.
300
Do you use heavy weight or light weight for endurance training? Do you use low reps or high reps?
Light weight; high reps
300
True or false: circumduction can be performed at any joint.
False
300
Performing a plank is an example of performing what type of contraction?
Isometric
300
Which muscle tissue types produce involuntary movements/actions?
Cardiac and smooth muscle
400
Complete the following statement:
The _______ that form between actin and myosin act as levers to pull the myofilaments so they __________ each other.
Cross bridges; slide past
400
______ muscles help the prime mover muscle produce movement and ______ muscles perform the opposite movement.
Synergistic muscles; antagonistic muscles
400
Provide an example of plantar flexion.
Standing on your tiptoes.
400
Provide an example of a movement that uses isotonic contraction.
Walking, running, squatting, picking up a book, etc.
400
True or false: all muscle tissue types have striations.
False- smooth muscle does not
500
Sarcomeres gives skeletal muscle its characteristic _______ appearance.
Striped or striated.
500
Which filament is the most responsible for the power stroke?
Myosin
500
What movements are involved in circumduction?
Double points: What do each of these movements do?
Extension- angle between joint longer
Flexion- angle between joint shorter
Abduction- moving part away from midline
Adduction- moving part towards midline
500
Which type of contraction is a more sustained contraction than a twitch?
Tetanic contraction
500
What are 3 characteristics of skeletal muscle?
- attached to bones
-voluntary movement
-striated in appearance
-voluntary movements