Principles of the Muscular System Quiz

Explore principles of the muscular system with questions on muscle types, functions, contractions, and more. Test yourself now!

#1

Which type of muscle is striated and under voluntary control?

Cardiac muscle
Smooth muscle
Skeletal muscle
Involuntary muscle
#2

What is the primary function of the muscular system?

Maintaining body temperature
Transporting oxygen in the blood
Providing structural support
Facilitating movement
#3

Which connective tissue surrounds the entire muscle?

Epimysium
Endomysium
Perimysium
Tendon
#4

In which muscle activity does the muscle neither lengthen nor shorten?

Isotonic
Isometric
Eccentric
Concentric
#5

What is the term for the ability of a muscle to generate force without changing its length?

Isotonic
Isometric
Eccentric
Concentric
#6

Which of the following is a neurotransmitter responsible for muscle contraction?

Dopamine
Serotonin
Acetylcholine
Endorphin
#7

What is the term for the ability of a muscle to lengthen under tension?

Isotonic
Isokinetic
Eccentric
Isometric
#8

What is the term for the functional unit of a muscle fiber?

Myofibril
Sarcomere
Myosin
Actin
#9

In which phase of muscle contraction does the muscle generate the most force without changing its length?

Eccentric
Concentric
Isometric
Isotonic
#10

What is the primary function of the sarcoplasmic reticulum in muscle cells?

Protein synthesis
Storage of glycogen
Calcium ion regulation
Cellular respiration
#11

Which muscle is responsible for flexing the forearm at the elbow joint?

Biceps brachii
Triceps brachii
Deltoid
Quadriceps femoris
#12

Which muscle is responsible for the extension of the thigh at the hip joint?

Hamstring muscles
Quadriceps femoris
Adductor longus
Gluteus maximus
#13

What is the role of creatine phosphate in muscle contraction?

Acts as a neurotransmitter
Stores and provides energy
Regulates calcium levels
Facilitates oxygen transport
#14

Which muscle is responsible for abducting the arm at the shoulder joint?

Pectoralis major
Latissimus dorsi
Deltoid
Rhomboid major
#15

Which protein, when activated by calcium ions, allows muscle contraction to occur?

Troponin
Myosin
Actin
Tropomyosin

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