WorksheetsMusclePhysiologyReview
Total questions: 19
Worksheet time: 7mins
Which term can be defined as the "rapid change in electrical charge of part of a cell"?
action potential
synapse
membrane potential
axon
In which connective tissue would you only find capillaries?
Fascia
Endomysium
Perimysium
Epimysium
Which of the following proteins are considered regulatory proteins? (choose all that apply)
troponin
myosin
tropomyosin
titin
actin
The image above represents a:
ligand-gated channel protein
voltage-gated channel protein
What is the name of the element (ion) that causes synaptic vesicles to exocytose?
(a)
Which of the following enzymes contribute to ATP synthesis in muscle cells? (choose all that apply)
myokinase
myosin ATPase
acetylcholinesterase
creatine kinase
Which of the following regions represents the location of the entire thick filament?
A band
H band
I band
Which of the following images represents a thick filament?
Which of the following enzymes is responsible for initiating myosin's recovery stroke?
acetylcholinesterase
myokinase
myosin ATPase
tropomyosin
Which of the following structures is responsible for storing calcium in muscle cells?
myofibril
satellite cell
sarcoplasmic reticulum
sarcolemma
The binding of which two proteins is known as a cross-bridge?
myosin and G-actin
myosin and tropomyosin
myosin and F-actin
myosin and troponin
What term is definied as the synapse between an axon terminal and the sarcolemma?
(a)
What IMMEDIATELY happens as a result of the process in this image?
calcium is released into the cytosol of the muscle cell
myosin binds to actin
sodium binds to troponin
the muscle fiber becomes more negative
What is the term that can be defined as a "neuron plus all of its innervated muscle cells"?
(a)
The blue, vein-like network in this image represents the:
blood capillaries
sarcoplasmic reticulum
transverse tubules
epimysium
In which of the following images are junctional folds visible?
Muscle cell relaxation occurs when: (choose all that apply)
myosin stops binding actin
troponin stops binding calcium
acetylcholine stops binding to end-plate receptors
motor neuron action potentials cease
Which of the following is most important for long-term energy production in muscle cells?
aerobic respiration
phosphagen system
glycolysis
This image represents:
isometric contraction
concentric contraction
eccentric contraction
