Functions and Terms
What is the name of the protein that gives muscle red pigment?
Myoglobin
What is the name of the second smallest level in the organization of muscle?
Sarcomere
What is the name of the neurotransmitter that generates an action potential?
Acetylecholine
What are the names of the two myofilaments?
Actin and myosin
This muscle type is only found in the heart.
Cardiac
How does muscle help with thermoregulation?
What is an extension of connective tissue that attaches a muscle to a bone?
Tendon
What is the function of tropomyosin?
Blocks the binding site on actin
What is the boundary (end) of a sarcomere?
Z Disc
This muscle is described as involuntary and not striated
Smooth
What is the term for the wrapping of muscle fascicles?
Perimysium
What is the name of the wrapping of muscle?
Epimysium
Where is calcium stored and released from in the muscle?
sarcoplasmic reticulum
This portion of a sarcomere only contains thick filaments.
H zone
This muscle type makes up 40-50% of total body weight and is voluntary.
Skeletal
This characteristic is responsible for recoiling and resuming the resting position after stretching.
Elasticity
What is the name for the type of attachment to an immovable bone?
the origin
What needs to happen for myosin to bind to actin?
Troponin needs to get calcium to move tropomyosin
This protein is responsible for movement of a second protein in order for myosin to bind to actin.
Troponin
This muscle type is responsible for pressure for arterial blood flow.
Cardiac
What is a fibrous, sheet-like covering of connective tissue for muscle attachment at wide areas?
Direct attachment is when what of the muscle attaches to what of the bone?
Epimysium of muscle attaches to periosteum of bone
What two things are needed for contraction to occur?
ATP and calcium
What two sections of a sarcomere are pulled closer during the sliding of a contraction?
I band and H zone
This muscle type is responsible for maintaining the diameter in tubes and sphincters.
Smooth