The Muscular System 2-3 Flashcards
Tissue consisting of long cells that contract when stimulated, to produce motion.
Muscles
Series of muscles that move the skeleton
The muscular system
Connective tissue of the muscle that help form the tendon
Fascia and epimysium
Each layer of connective tissue extends the length of muscle helping to form what?
The tendon
Structures that attach muscles to bones
Tendons
The functional unit of muscle that produces muscular contraction and consist of repeating sections of actin and myosin
Sarcomere
Name the methods that muscle generates force (3)
Neural activation
Sliding filament theory
Excitation-contraction-coupling mechanism
What are motor neurons connected to
Muscle fibers
Define motor unit
The motor neuron and the muscle fiber it connects (innervates)
Define neuromuscular junction
The point where the neuron meets an individual muscle fiber
The small gap between the nerve and the muscle fiber
Synapse
The contraction of a muscle generated by a communication between the nervous system and the muscular system
Neural activation
Chemical messengers that cross synapses to transmit electrical impulses from the nerve to the muscle
Neurotransmitter
The proposed process of how the contraction of the filaments within the Sarcomere takes place
Sliding filament theory
The process of neural stimulation creating a muscle contraction
Excitation-contraction coupling
Characteristics do Type 1 slow twitch muscle fibers (7)
- Higher in capillaries mitochondria and myoglobin
- Increased oxygen delivery
- Smaller in size
- Produces less force
- Slow to fatigue
- Long-term contractions (stabilization)
- Slow twitch, red fibers