#1
Which muscle is responsible for flexing the forearm?
Biceps brachii
ExplanationBiceps brachii flexes the forearm by contracting.
#2
Which muscle is known as the 'powerhouse' of the cell?
Mitochondria
ExplanationMitochondria is the powerhouse of the cell, producing energy in the form of ATP.
#3
Which muscle assists in breathing by contracting and relaxing to change the volume of the thoracic cavity?
Diaphragm
ExplanationThe diaphragm contracts and relaxes to change thoracic cavity volume during breathing.
#4
Which muscle is responsible for extending the knee joint?
Rectus femoris
ExplanationRectus femoris extends the knee joint when it contracts.
#5
Which muscle is responsible for rotating the arm laterally?
Infraspinatus
ExplanationInfraspinatus muscle rotates the arm laterally.
#6
Which muscle is primarily responsible for dorsiflexion of the foot?
Tibialis anterior
ExplanationTibialis anterior is the primary muscle for dorsiflexion of the foot.
#7
Which muscle is located in the anterior compartment of the thigh?
Rectus femoris
ExplanationRectus femoris is located in the anterior compartment of the thigh.
#8
Which of the following muscle types is under voluntary control?
Skeletal muscle
ExplanationSkeletal muscles are under voluntary control.