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In resting myofibers, the intracellular environment is characterized by a high concentration of potassium ions (K+) and a low concentration of sodium ions (Na+), maintaining a negative membrane potential. Calcium ions (Ca2+) are typically sequestered in the sarcoplasmic reticulum, preventing muscle contraction. Additionally, ATP levels are maintained to support metabolic functions, while the myofibers are in a relaxed state, ready for activation upon stimulation. This balance of ions and energy is crucial for muscle function and response to stimuli.
What else can I help you with?
What is the order from largest to smallest myofibril fascicle myofiber myofilament?
myofilament myofibril myofiber fascicle muscle
Why are myofibers polynucleated?
They're made from many of precursor cells fusing to form a myofiber cell, and each of these precursor cells has their own nucleus which are retained in the specalised myofiber cell.
What is the smallest contractile unit of the muscle fiber?
sarcomere
Which is smaller a myofibril or a myofiber?
Short Answer:A myofibril is smaller than a myofiber (muscle fiber).Long Answer:Skeletal Muscle Hierarchy:Muscle OrganPerimysium = white fibrous connective tissue & areolar connective tissue that surrounds each fascicleFascicle = bundle of skeletal muscle fibersEndomysium = areolar connective tissue that surrounds each muscle fiberMuscle Fiber ( Myofiber) = a muscle cellMyofibrils = contractile protein organellesMyofilaments = contractile proteins composed of:thick filaments = made of myosinthin filaments = made of actin
In what conditions will plasma exist?
The conditions in the sun's core that allows the plasma state to exist hydrogen nuclei.
What is the correct term for burning of fat under resting conditions?
aerobic lypolysis
What restores and puts the cell membrane to resting conditions after an action potential?
Calcium
Each muscle fiber is also called a?
Each muscle fiber is also called a myofiber.
What is the medical term meaning burning fat under resting conditions?
aerobic lypolysis
How does an eagle co-exist in its environment?
An eagle co-exists in it's enironment by eating and flying but also resting.
Does Mercury have cloud conditions that might exist?
No, there are no cloud conditions in Mercury
What is the division of the autonomic nervous system is said to function during resting conditions?
human anatomy
