Bio223A Quiz Question Practice Flashcards
Which of the following is a function acclimated with the t-tubules?
Allows for electrical signals deeper into the cell
Which of the following enzymes is found in the synaptic cleft and responsible for the breakdown of acetylcholine?
Acetylcholinesterase
This structure allows the eléctrica, síganla to travel along the sarcolemma and move deeper into the cell
Transverse tubules
What are the four kinds of proteins that make up myofilaments are myosin, actin
Tropomyosin and tropponin
The muscles ability to stretch or extend and return to its resting length is allied
Extensibility
All of following are characteristics of slow twitch oxidative fibers except
Large diameter
Which of the followings talents is most correct for isometric contraction
The amount of tension in cafes during contraction without changing muscle length
The neurotransmitter secretad at the motor end of skeletal muscles is
Acetylcholine
During an action potential, calcium is released from the sarcoplasmic reticulum, near the actin and myosin molecules. What is the fate of calcium once released?
The calcium binds to tropomyosin causing troponin block to move away from the active
A muscle contraction in which the muscle produces an increasing tension but the length remains constant is a(n)
Isometric contraction
Somatic motor neurons innervate
Skeletal muscle
Which of the following is a structural protein found in muscles?
Nebulin
Fast glycolytic fibers
produce powerful contractions
The motor end plate is a component of the
Neuromuscular junction
The treppe effect is also termed
staircase phenomenon
