Name that muscle
The Pronator Teres muscle allows you to do this motion
The main example of a synarthroses joint
What are the sutures in your cranium?
This protein blocks myosin binding sites on actin
What is tropomyosin?
The term for the electrical signal sent from the brain to a muscle
What is an action potential?
The connection points for the intermediate-filament skeleton within smooth muscle
What are dense bodies?
The origin of this muscle is the top of the cranium and the insertion is in the eyebrows
What is the Frontalis muscle?
Your vertebrae are an example of this type of structural classification of joints
What are cartilaginous joints?
The part of the muscle attached to the non-moving bone
What is the origin?
These membraneous sacs release ACh into the synaptic cleft
What are synaptic vesicles?
The amount skeletal muscle and smooth muscle are able to stretch/contract from their resting length.
What is +/- 30% for skeletal and +100% / - 50% for smooth?
Also accepted: What is 60% for skeletal and 150% for smooth?
When you throw a punch forward you are protracting your scapula using this muscle
What is the serratus anterior?
A movement that increases the angle between the two jointed bones
What is an extension?
The layer of connective tissue that surrounds each muscle fascicle.
What is the perimysium?
Following a stimulus, this enzyme "cleans up" the synaptic cleft
What is acetylcholinesterase?
The energy system used to sustain 4-6 seconds of rapid muscle contraction
What is the creatine kinase system?
When you flex your forearm, the biceps brachii is acting as this in the muscle pair
What is the agonist?
This joint is what separates us from the monkeys
What is the saddle joint of our thumb?
Along with T-tubules, this structure forms the triads responsible for calcium release
What is the terminal cisternae?
Without ATP, mysoin and actin would be stuck in this position
What is bound by crossbridges?
An increase in myoglobin most benefits this muscle fiber type
What are slow oxidative fibers?
The 3rd muscle, along with semitendinosus and semimembranosus, that makes up the hamstring muscle group.
What is the biceps femoris?
The elbow, knee, and interphalangeal joints are all this type
What is a hinge joint?
The place within the sarcomere where thin filaments are anchored
What is the Z disc?
The release of calcium ions is based on this type of channel. BONUS - the structure from which the calcium ions are released.
What are voltage sensitive channels along the sarcoplasmic reticulum?
The 3 stages of a muscle twitch, in order
What are latent, contraction, and relaxtion?