Anatomy/Physiology
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| show | The ability of skeletal muscle to shorten with force.
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| show | The capacity of skeletal muscle to respond to a stimulus.
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| what is extensibility? | show 🗑
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| show | The ability to recoil to their original resting length after they have been stretched.
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| What is the epimysium? | show 🗑
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| show | Loose coonective tissue that surrounds visible muscle fibers.
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| what is the fascia? | show 🗑
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| What are fibers? | show 🗑
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| show | A threadlike structure that extends from one end of the fiber to the other end of the fiber.
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| show | Thin myofilament s that resemble 2 minute strands of pearls twisted together.
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| show | Thick myofilaments that resemble bundles of minute golf clubs.
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| What are sacromeres? | show 🗑
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| What is resting membrane potential? | show 🗑
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| show | The brief reversal back of the charge.
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| What are motor neurons? | show 🗑
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| show | Axons enter the muscles and branch. Each branch that connects to the muscle.
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| What is a motor unit? | show 🗑
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| What is a presynaptic terminal? | show 🗑
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| show | The space between the presynaptic terminal and the muscle cell.
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| What is the postsynaptic terminal? | show 🗑
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| show | In the presynaptic terminal.
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| show | A neurotransmitter that is secreted by synaptic vessels.
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| show | When the acetylcholine is released into the synaptic cleft between the neuron and muscle cell is broken down by enzymes.
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| show | The sliding of actin myofilaments past myosin myofilaments during contraction.
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| show | A contraction of an entire muscle in respone to a stimulus that causes the action potential in one or more muscle fibers,
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| What is the treshold? | show 🗑
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| What is the all or none response? | show 🗑
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| What is the lag phase? | show 🗑
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| show | The time of contraction.
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| What is the relaxation phase? | show 🗑
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| show | Where the muscle remains contracted without relaxing.
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| show | The increase in the number of motor units being activated.
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| What is creatine phosphate? | show 🗑
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| What is anaerobic respiration? | show 🗑
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| What is aerobic respiration? | show 🗑
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| show | The amount of oxygen needed in chemical reactions to convert lactic acid to glucose and to replinish the depleted stores of creatine phosphate stores in muscle cells.
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| show | Results when ATP is used during muscle contraction faster than it can be produced in the muscle cells.
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| What is the meaning of isometric? | show 🗑
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| show | The amount of tension produced by the muscle is constant during contraction, but the length if the muscle changes.
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| What is muscle tone? | show 🗑
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| What are fast-twitch fibers? | show 🗑
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| What are slow-twitch fibers? | show 🗑
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| What is the origin? | show 🗑
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| What is insertion? | show 🗑
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| What is the belly? | show 🗑
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| show | Muscles that work together to accomplish specific movements.
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| What are antagonists? | show 🗑
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| show | The one muscle that plays a major role among a group of synergists.
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| show | Heat.
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| show | It surrounds and seperates muscles.
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| What is a single cylindrical cell containing several nuclei? | show 🗑
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| What is the cytoplasm of each fiber filled with? | show 🗑
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| Myofibrils consist of how mmany kinds of major proteins? | show 🗑
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| show | The myofibril.
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| show | Muscle.
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| Each sacromere extens from one Z line to what other line? | show 🗑
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| Each Z line is an attachment site for what? | show 🗑
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| show | Banded.
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| show | An I band.
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| show | The myosin.
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| What is darker than the central region in each sacromere? | show 🗑
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| show | The H zone.
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| The myosin myofilaments are anchored in the center of the sacromere at a dark staining band called what? | show 🗑
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| The outside of most cell membranes is positively charged compared to the outside of the cell membrane which has what kind of a charge? | show 🗑
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| show | The muscle cell.
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| show | The muscles and branch.
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| Many motor units form what? | show 🗑
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| A neuromuscular junction if formed by what? | show 🗑
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| show | Acetylcholine.
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| When an action potential reaches the nerve terminal, what happens? | show 🗑
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| What diffuses across the synaptic cleft and binds to receptor molecules in the muscle membrane? | show 🗑
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| What is the muscle cell membrane called? | show 🗑
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| show | Sodium ions into the muscle fiber.
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| What causes the muscle to contract? | show 🗑
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| show | Acetycholinesterase.
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| show | When the actin and myofilaments slide past one another causing the sacromeres to shorten.
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| show | Muscle.
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| In muscle contraction, when the H and I bands shorten, which band does not change in length? | show 🗑
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| If successive stimuli is given you get excessive what that occurs so frequently because the muscle doesn't have time to fully relax? | show 🗑
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| What is needed for energy for muscle contraction? | show 🗑
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| What does ATP stand for? | show 🗑
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| Where is ATP produced? | show 🗑
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| show | ATP
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| show | Adenosine Diphosphate.
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| show | Muscles.
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| What high-energy molecule cannot be stockpiled while at rest? | show 🗑
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| During periods of inactivity as excess ATP is produced in the muscle cell, the energy contained in ATP is used to synthesize what? | show 🗑
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| During perios of activity, the energy stored in creatine phosphate can be accessed quickly and used to produce ATP, which can then be used in what? | show 🗑
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| show | Respiration Rate.
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| What provides the oxygen to payback the oxygen debt? | show 🗑
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| How many types of muscle contractions are there? | show 🗑
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| What are the two types of muscle contracitons called? | show 🗑
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| show | It's origin and insertion.
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| At points of attachment muscle is connected to the bone by what? | show 🗑
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| show | Some muscles.
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| Most what have names that are descriptive? | show 🗑
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| What are muscles named according to? | show 🗑
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| show | Four.
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| What are the four major functional characteristics to skeletal muscle? | show 🗑
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| Where is the I band located? | show 🗑
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| show | One Z line to the left, and one to the right, while there is one I band accompanying each on the introverted side of each Z line, with an M line in btween the pair of A bands.
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| Where is the H zone located? | show 🗑
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