#1
Which type of muscle is responsible for involuntary movements like heart contractions?
Cardiac muscle
ExplanationInvoluntary muscle type specifically found in the heart.
#2
Which neurotransmitter is responsible for initiating muscle contractions at the neuromuscular junction?
Acetylcholine
ExplanationNeurotransmitter facilitating communication between nerves and muscles.
#3
Which muscle is known as the 'quadriceps femoris' group?
Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius
ExplanationGroup of muscles at the front of the thigh responsible for extending the knee.
#4
Which of the following muscles is NOT a member of the rotator cuff group?
Rectus femoris
ExplanationNot part of the group of muscles supporting shoulder movement and stability.
#5
Which muscle is responsible for extension of the elbow joint?
Triceps brachii
ExplanationMuscle primarily involved in straightening the elbow.
#6
Which muscle is responsible for flexion of the hip joint?
Iliopsoas
ExplanationMuscle group involved in bending the hip joint.
#7
Which muscle is responsible for adduction of the shoulder joint?
Latissimus dorsi
ExplanationMuscle primarily involved in pulling the shoulder towards the midline of the body.
#8
Which muscle is responsible for dorsiflexion of the foot?
Tibialis anterior
ExplanationMuscle involved in lifting the foot and bending it towards the shin.
#9
Which muscle is responsible for pronation of the forearm?
Pronator teres
ExplanationMuscle involved in rotating the forearm to turn the palm downwards.
#10
What is the main function of the deltoid muscle?
Abduction of the shoulder joint
ExplanationMuscle primarily involved in lifting the arm away from the body.
#11
What is the term for a muscle that acts as the prime mover in a particular movement?
Agonist
ExplanationPrimary muscle responsible for a specific movement.
#12
What is the main function of the transverse abdominis muscle?
Compression of the abdominal contents
ExplanationMuscle primarily involved in stabilizing the core and compressing abdominal contents.