Motor Physiology - 1 is part of the Central Nervous System section of Physiology. Practise 44 exam-style MCQs for NEET PG, FMGE, INI-CET and NEET SS, each with the correct answer and a detailed explanation.
Muscle spindle length sensing, Golgi tendon organ tension sensing, decerebrate rigidity posture and the corticospinal split between direct and interneuron relay headline these Motor Physiology - 1 MCQs, which test movement control as high-yield NEET PG revision.
Sample Motor Physiology - 1 MCQs with answers
Sample MCQ #1
During hip replacement, loss of joint and ligament receptor leads to
ANo loss of sensation
BLoss of all sensations
CJoint sensation lost in stable position
DDecrease in sensation
Show Answer & Explanation ▾
✓ Correct Answer: A. No loss of sensation
After hip replacement - loss of joint receptors doesn't cause loss of joint position sense After knee replacement - there is decline in joint position sense Reference: Nazan Tugay, Proprioception after Arthroplasty, page no. 4
Sample MCQ #2
Maximum area in homunculus signifies?
ALow control and skilled movements
BMore muscle fibers are present
CIncreased preciseness of movements
DNone of the above
Show Answer & Explanation ▾
✓ Correct Answer: C. Increased preciseness of movements
Size of the cortical receiving area for the impulse from a particular body part is proportional to the use of the part concerned with precision of movements Reference: Ganong 25th edition page no.169
Sample MCQ #3
Cutting of pyramidal tract after decussation causes all expect
APositive Babinski sign
BLoss of superficial reflex
CLoss of proprioception of opposite limb
DParalysis
Show Answer & Explanation ▾
✓ Correct Answer: C. Loss of proprioception of opposite limb
Loss of proprioception of opposite limb usually seen in damage to spinal cord Reference: Ganong, 25th edition page no.241
Sample MCQ #4
Which of the following is false about decerebrate rigidity?
AUpper limb is flexed; lower limb is extended
BBoth upper and lower limbs are extended
CLesion between the superior and inferior colliculi produces this rigidity
DCutting dorsal root abolishes the rigidity
Show Answer & Explanation ▾
✓ Correct Answer: A. Upper limb is flexed; lower limb is extended
In decerebrate rigidity, Lower extremities are extended. Toes are pointed inward. Upper extremity is extended. Fingers are flexed and the forearms are pronated. Neck and head are extended. Reference: Ganong's Review of Medical Physiology, 25th Edition, Page Number-208.
Sample MCQ #5
Which of the following relays via interneurons on anterior horn cell
AMuscle spindle
BCorticospinal tract
CSpinothalamic tract
DSpinocerebellar tract
Show Answer & Explanation ▾
✓ Correct Answer: B. Corticospinal tract
About 30% of the corticospinal tract fibers terminate directly on the anterior horn neurons. Remaining 70% of corticospinal tract fibers terminate on interneurons Reference: Ganong, 25th edition page no.242
Sample MCQ #6
Afferent of Golgi tendon organ arises from?
AMuscle spindle
BTendon
CPeriosteum
DJoint
Show Answer & Explanation ▾
✓ Correct Answer: B. Tendon
Golgi tendon organ is the netlike collection of knobby nerve endings present in tendons Reference: Ganong, 25th edition page no.232
Sample MCQ #7
You are testing knee jerk in a patient. The afferents in deep tendon are carried by
ADynamic intrafusal fibers
BGolgi tendon organ
CNuclear bag and static chain fibers
DBoth Golgi tendon and muscle spindle
Show Answer & Explanation ▾
✓ Correct Answer: A. Dynamic intrafusal fibers
Dynamic nuclear bag fibers detect the velocity (rate) of the change in muscle length during a stretch (phasic activity) Static fibers detect the steady state length of the muscle (tonic activity) Stretching the muscle with a knee hammer mainly activates Dynamic nuclear bag fibers Reference: Ganong, 25th edition page no.232
Muscle spindle length sensing, Golgi tendon organ tension sensing, decerebrate rigidity posture and the corticospinal split between direct and interneuron relay headline these Motor Physiology - 1 MCQs, which test movement control as high-yield NEET PG revision.
How many Motor Physiology - 1 questions are there, and which exams do they cover?
MedLadder includes 44 curated MCQs for Motor Physiology - 1 under Physiology (Central Nervous System), covering NEET PG, FMGE, INI-CET and NEET SS preparation.
