#1
Which type of muscle tissue is responsible for involuntary movements like peristalsis?
Smooth muscle
ExplanationResponsible for involuntary movements, such as peristalsis.
#2
Which of the following is a characteristic of skeletal muscle tissue?
Under conscious control
ExplanationUnder conscious control of the individual.
#3
What is the name of the connective tissue surrounding a bundle of muscle fibers?
Perimysium
ExplanationConnective tissue surrounding a bundle of muscle fibers.
#4
Which of the following is NOT a function of muscle tissue?
Producing hormones
ExplanationMuscle tissue does not produce hormones.
#5
Which of the following muscles is voluntary?
Biceps brachii
ExplanationBiceps brachii muscle is voluntary.
#6
Which of the following is a characteristic of smooth muscle tissue?
Involuntary contraction
ExplanationSmooth muscle tissue exhibits involuntary contraction.
#7
What is the main function of smooth muscle tissue?
Constricting and relaxing to move substances
ExplanationMainly responsible for constricting and relaxing to move substances.
#8
Which of the following statements is true about cardiac muscle tissue?
It has striations like skeletal muscle
ExplanationPossesses striations similar to skeletal muscle.
#9
What is the term for the functional unit of skeletal muscle?
Sarcomere
ExplanationFunctional unit of skeletal muscle.
#10
Which neurotransmitter is released at the neuromuscular junction to stimulate muscle contraction?
Acetylcholine
ExplanationAcetylcholine is released at the neuromuscular junction for muscle contraction.
#11
Which type of muscle tissue is multinucleated?
Skeletal muscle
ExplanationSkeletal muscle is multinucleated.
#12
What is the name of the specialized smooth endoplasmic reticulum found in muscle cells?
Sarcoplasmic reticulum
ExplanationSpecialized smooth endoplasmic reticulum in muscle cells.
#13
Which protein is primarily responsible for muscle contraction in skeletal muscle tissue?
Myosin
ExplanationPrimary protein for muscle contraction in skeletal muscle tissue.
#14
Which type of muscle tissue exhibits autorhythmicity?
Cardiac muscle
ExplanationCardiac muscle exhibits autorhythmicity.
#15
What is the function of the T tubules in muscle cells?
Conduct action potentials
ExplanationT tubules conduct action potentials in muscle cells.
#16
What is the role of troponin in muscle contraction?
It binds to calcium ions
ExplanationTroponin binds to calcium ions in muscle contraction.
#17
Which protein is primarily responsible for muscle contraction in smooth muscle tissue?
Calmodulin
ExplanationCalmodulin is the primary protein for muscle contraction in smooth muscle tissue.
#18
What is the term for the contractile unit of a muscle cell?
Sarcomere
ExplanationContractile unit of a muscle cell.