#1
Which muscle is responsible for smiling?
Zygomaticus major
ExplanationFacial muscle primarily responsible for smiling.
#2
Which muscle helps in chewing food?
Masseter
ExplanationMuscle aiding in the chewing process.
#3
What is the main function of the pectoralis major muscle?
Adduction of the arm
ExplanationMuscle primarily involved in pulling the arm towards the body.
#4
What is the primary function of the biceps brachii muscle?
Flexion of the elbow
ExplanationMuscle primarily involved in bending the elbow.
#5
What is the main function of the rectus abdominis muscle?
Flexion of the spine
ExplanationMuscle primarily involved in bending the spine forward.
#6
What is the main function of the deltoid muscle?
Abduction of the arm
ExplanationMuscle primarily involved in raising the arm away from the body.
#7
Which muscle is responsible for wrinkling the forehead?
Frontalis
ExplanationMuscle that causes forehead wrinkles.
#8
What is the main function of the trapezius muscle?
Rotation of the head and shoulders
ExplanationMuscle primarily involved in rotating the head and shoulders.
#9
Which muscle is responsible for smiling and raising the cheeks?
Zygomaticus major
ExplanationFacial muscle responsible for both smiling and raising the cheeks.
#10
Which muscle is responsible for raising the eyebrows?
Frontalis
ExplanationMuscle primarily involved in raising the eyebrows.
#11
What is the primary function of the gastrocnemius muscle?
Plantar flexion of the foot
ExplanationMuscle primarily involved in pointing the foot downward.
#12
Which muscle is responsible for frowning?
Depressor anguli oris
ExplanationMuscle primarily involved in pulling the corners of the mouth downward.
#13
Which muscle is responsible for closing the eye tightly?
Orbicularis oculi
ExplanationMuscle responsible for tightly closing the eyelids.
#14
Which muscle is responsible for puckering the lips?
Orbicularis oris
ExplanationMuscle primarily involved in puckering the lips.
#15
Which muscle is responsible for pursing the lips?
Orbicularis oris
ExplanationMuscle primarily involved in drawing the lips together.
#16
Which muscle is responsible for rotating the arm laterally?
Infraspinatus
ExplanationMuscle primarily involved in outward rotation of the arm.
#17
Which muscle is responsible for adducting the arm?
Latissimus dorsi
ExplanationMuscle primarily involved in pulling the arm towards the body.