NEET 2025 MCQ with Answer Explanation : “Locomotion and Movement”.

MCQ 141
Which muscle group is primarily responsible for hip abduction?

A) Adductors
B) Gluteus medius and minimus
C) Hamstrings
D) Quadriceps

Answer: B) Gluteus medius and minimus
Explanation: The gluteus medius and minimus are the main muscles responsible for abducting the hip.

MCQ 142
What is the primary action of the flexor carpi radialis muscle?

A) Flex the wrist
B) Extend the wrist
C) Abduct the wrist
D) Rotate the forearm

Answer: A) Flex the wrist
Explanation: The flexor carpi radialis muscle primarily functions to flex the wrist and assist in radial deviation.

MCQ 143
Which muscle is responsible for opening the mouth?

A) Masseter
B) Temporalis
C) Digastric
D) Buccinator

Answer: C) Digastric
Explanation: The digastric muscle helps depress the mandible, allowing for mouth opening.

MCQ 144
What is the role of the vastus intermedius muscle?

A) Flex the knee
B) Extend the knee
C) Rotate the hip
D) Stabilize the knee

Answer: B) Extend the knee
Explanation: The vastus intermedius is part of the quadriceps group and primarily functions to extend the knee joint.

MCQ 145
What is the primary function of the levator scapulae muscle?

A) Elevate the scapula
B) Depress the scapula
C) Rotate the scapula
D) Adduct the scapula

Answer: A) Elevate the scapula
Explanation: The levator scapulae muscle is responsible for elevating the scapula and assisting in neck movement.

MCQ 146
Which of the following muscles aids in chewing?

A) Temporalis
B) Masseter
C) Buccinator
D) All of the above

Answer: D) All of the above
Explanation: The temporalis, masseter, and buccinator muscles all assist in the chewing process.

MCQ 147
What is the primary role of the external intercostal muscles?

A) Aid in exhalation
B) Aid in inhalation
C) Stabilize the rib cage
D) Flex the torso

Answer: B) Aid in inhalation
Explanation: The external intercostal muscles help elevate the rib cage during inhalation, increasing lung volume.

MCQ 148
Which muscle is responsible for shoulder extension?

A) Pectoralis major
B) Deltoid
C) Latissimus dorsi
D) A and C

Answer: D) A and C
Explanation: Both the pectoralis major and latissimus dorsi are involved in extending the shoulder joint.

MCQ 149
What is the primary function of the soleus muscle?

A) Plantar flex the foot
B) Dorsiflex the foot
C) Flex the knee
D) Abduct the foot

Answer: A) Plantar flex the foot
Explanation: The soleus muscle primarily plantar flexes the foot, working alongside the gastrocnemius.

MCQ 150
Which muscle is involved in both flexing the hip and extending the knee?

A) Rectus femoris
B) Biceps femoris
C) Semitendinosus
D) Sartorius

Answer: A) Rectus femoris
Explanation: The rectus femoris is unique among the quadriceps as it flexes the hip while also extending the knee.