Question 1. In Looking At The Evolution Of The Vertebrate Brain From Fish To Humans, The Greatest Increase In Size Are Seen In The :
- Medulla And Cerebellum
- Cerebellum And Tectum
- Cerebellum And Cerebral Hemispheres
- Cerebellum.
Answer: 3. Cerebellum And Cerebral Hemispheres
Question 2. Plasticity In A Nervous System Is Reflected In Animals:
- Degree Of Ability To Learn
- Degree Of Inability To Learn
- Constancy Of Response To Repeated Presentation Of The Same Stimulus
- Randomness Of Response To Repeated Presentation Of The Same Stimulus.
Answer: 1. Degree Of Ability To Learn
Question 3. Impulses Leave A Neuron Via The :
- Dendrites
- Nucleus
- Myelin Sheath
- Axon.
Answer: 4. Axon.
Question 4. The Myelin Sheath Around The Axons Of Some Vertebrate Neurons :
- Is Rich In Lipids Because It Is Formed By The Mem-Branes Or Schwann Cells
- Is A Secretory Product Of The Schwann Cells
- Is Produced Inside The Axon And Extruded Out Through The Membrane
- Is Continuous All Along The Length Of The Axon.
Answer: 1. Is Rich In Lipids Because It Is Formed By The Mem-Branes Or Schwann Cells
Question 5. In Humans, The Cerebral Cortex Is Roughly About 80% Of Total Brain Mass. A Touch On Right Band Stimulates Neurons In The :
- Left Somatic Sensory Area
- Left Occipital Lobe
- Right Somatic Sensory Area
- Right Occipital Lobe.
Answer: 1. Left Somatic Sensory Area
Question 6. A Neuron Transmits Information About Ihc Intensity Of N Stimulus Hint It Has Received By :
- Changing The Size Of Its Action Potcrdials
- Changing The Speed At Which Its Action Potentials Travel
- Releasing Different Types Of Neurotransmitters
- Transmitting Different Numbers Of Nerve Impulses In A Given Period,
Answer: 4. Transmitting Different Numbers Of Nerve Impulses In A Given period,
Question 7. The Ventricles Of Cerebral Hemispheres Communicate Through:
- Foramen Magnum
- Foramen Opali
- Foramen Of Monro
- Optic Foramen,
Answer: 3. Foramen Of Monro
Question 8. The Main Functions Of Cerebrospinal Fluid In The Ventricles Of the Brain And Central Canal Of the Spinal Cord Are:
- To Prevent Brain Against Any Infection
- To Absorb Any Shock Or Jerk To Brain Or Spinal Cord
- For Easy Communication Of The Brain And Spinal Cord And Provide Nutrition
- For Lubrication Of Brain.
Answer: 2. To Absorb Any Shock Or Jerk To the Brain Or Spinal Cord
Question 9. The Optic Nerves In Brain Leave The Cranium By The :
- Optic Foramen
- Cribriform Plate Apertures
- Sphenoid Foramen
- Foramen Lecerum.
Answer: 1. Optic Foramen
Question 10. The Oculomotor Nerve Arises From Crura Cerebri And Innervates :
- Ear Drum
- Ear Canals
- Skin Of Nose, Orbit, And Snout
- Eye Muscles.
Answer: 4. Eye Muscles.
Question 11. The Facial Nerve Arises From Medulla Oblongata And It Is:
- Only Sensory In Nature
- Only Motor In Nature
- Both Sensory And Motor
- Inert.
Answer: 2. Only Motor In Nature
Question 12. The Pneumogastric Or Vagus Nerve Is Both Sensory And Motor In Nature And Innervates :
- Lungs Only
- Stomach Only
- Oesophagus Only
- Vocal Cords, Lungs, Pharynx, Oesophagus, Stomach And Heart.
Answer: 4. Vocal Cords, Lungs, Pharynx, Oesophagus, Stomach And Heart.
Question 13. In Brain, The Chief Co-Ordinating Centres For Intelligence, Memory, Emotions, And Ability To learn from Experience Is Present At:
- Cerebellum
- Movement Becomes Unbalanced, Walk Uncontrolled, And Defective Speech
- Medulla Oblongata
- Flocculus.
Answer: 2. Movement Becomes Unbalanced, Walk Uncontrolled And Defective Speech
Question 14. Cerebellum Is The Centre For Reflex Coordination And Muscular Tone. If The Cerebellum Is Injured :
- Movements Become Jerky, Walk Controlled.
- Movements Become Shaky And Speech Becomes Defective
- Movement Becomes Unbalanced, Walk Uncontrolled, And Defective Speech
- No, There Is No Effect As The Actions Controlled By This Are Under The Control Of Will.
Answer: 3. Movement Becomes Unbalanced, Walk Uncontrolled And Defective Speech
Question 15. In One Second Nerve Impulse Navels About:
- 221 Metres
- 1-1 Metres
- 321 Metros
- 100 Metres.
Answer: 2. 1-1 Metres
Question 16. Respiration, Circulation Of Blood, Heart Beat, Digestive Organ Movements, Swallowing, Gland Secretion And All Unconscious Activities Are Controlled :
- Partly By the Cerebrum And Partly By the Cerebellum
- Partly By the Cerebellum And Partly By the Medulla Oblongata
- Partly By Cerebrum And Partly By Medulla Oblongata
- By Medulla Oblongata Only.
Answer: 4. By Medulla Oblongata Only.
Question 17. The H Shaped Matter Surrounding The Central Canal Of Spinal Cord Is Known As:
- Grey Matter
- White Matter
- Sulci And Gyri
- Fibre Tract.
Answer: 1. Grey Matter
Question 18. Aqueduct Of Sylvius Or Iter Connects :
- 3rd Ventricle With 4th Ventricle
- Cerebellum To Medulla Oblongata
- The Two Halves Of Cerebrum
- Lateral Ventricle With Each Other.
Answer: 1. 3rd Ventricle With 4th Ventricle
Question 19. Mammalian Brain Can Be Distinguished Externally From Amphibian Brain By :
- Presence Of Hypothalamus
- Presence Of Infundibulum
- Presence Of Four Optic Lobes
- Presence Of Mesencephalon.
Answer: 3. Presence Of Four Optic Lobes
Question 20. Filum Terminale Is The Name Given To :
- Terminal Part Of Urostyle
- Terminal Part Of Nerve
- Terminal Part Of Spinal Cord
- Hormone Secreting Gland.
Answer: 3. Terminal Part Of Spinal Cord
Question 21. Cranial Nerve Which Brings Impulse From the Skin Of the Snout, Upper Jaw, Tongue, And Lower Jaw Is :
- Trigeminal
- Olfactory
- Glossopharyngeal
- Vagus And Trigeminal.
Answer: 1. Trigeminal
Question 22. The Spinal Nerves Are :
- Sensory
- Motor
- Mixed
- Efferent.
Answer: 3. Mixed
Question 23. Which Of The Following Is Purely A Motor Nerve?
- Vagus
- Olfactory
- Abducens
- Trigeminal.
Answer: 3. Abducens
Question 24. The 9th Cranial Nerve Is Called :
- Glossopharyngeal
- Vagus
- Facial
- Oculomotor.
Answer: 1. Glossopharyngeal
Question 25. Auditory Nerve Innervates :
- Internal Ear
- External Ear
- Muscles Of The Tongue
- Muscles Of The Neck.
Answer: 1. Internal Ear
Question 26. Sciatic Nerve In Frog Is Originated From A Plexus Formed By:
- 8th, 9th, 10th Nerves
- 9th, 8th, 7th Nerves
- 8th, 7th, 6th Nerves
- 8th, 9th Spinal Nerves.
Answer: 4. 8th, 9th Spinal Nerves.
Question 27. The Optic Nerve Is Responsible For:
- Eye Movement
- Vision
- Sensation
- Equilibrium.
Answer: 2. Vision
Question 28. Difference In Rellex And Reflex Action Lies In :
- Synopsis
- Stimuli From Brain
- Type Of Nerve Fibres
- The Connection With Brain.
Answer: 4. The Connection With Brain.
Question 29. The Number Of Spinal Nerves In frogs is:
- 9 Pairs And 10th Unpaired
- 5 Pairs
- 12 Pairs
- 31 Pairs,
Answer: 1. 9 Pairs And 10th Unpaired
Question 30. Among The Following Which Is Concerned With Neurosecretion In A Vertebrate?
- Corpora Allata
- Pineal Gland
- Neurohypophysis
- Corpora Cardiaca.
Answer: 3. Neurohypophysis
Question 31. Which One Of The Following Is the Smallest Nerve That Innervates Cephalic R for example Only?
- Optic
- Oculomotor
- Abducens
- Trochlear.
Answer: 1. Optic
Question 32. Only One Cranial Nerve Is the Longest And Innervates Organs Situated Outside The Cephalic Regulation Of The Body Also. It Is ;
- Trigeminal
- Auditory
- Glossopharyngeal
- Vagus.
Answer: 4. Vagus.
Question 33. The Eighth Cranial Nerve Carries Impulse From :
- Ear
- Nose
- Tongue
- Eye.
Answer: 1. Ear
Question 34. Which Of The Following Statements Is Correct?
- Nerve impulses from The Body Of The Cell Passes Both Through Afferent, And Efferent Processes
- Impulse Is Received Both By Afferent And Efferent Processes
- Impulse Is Received By Efferent And Sent By Afferent
- Impulse From Other Cell Is Received By Afferent Fibres And Sent By Efferent Fibres.
Answer: 4. Impulse From Other Cell Is Received By Afferent Fibres And Sent By Efferent Fibres.
Question 35. Optic Chiasma Is Principally Concerned With :
- Blood Supply To The Choroid
- Stereoscopic Vision
- Color Vision
- Accommodation In The Eye.
Answer: 2. Stereoscopic Vision
Question 36. Which Of The Following Cranial Nerves Is Purely Motor In Function?
- Trochlear
- Trigeminal
- Facial
- Glossopharyngeal.
Answer: 1. Trochlear
Question 37. The Body Of Sensory Neuron Involved In A Simple Reflex Action Is Located In The :
- Dorsal Root Ganglion
- Grey Matter Of Spinal Cord
- White Matter Of Spinal Cord
- Brain.
Answer: 1. Dorsal Root Ganglion
Question 38. When Movements Occur Without The Intervention Of The Brain They Are Called :
- Cranial Reflexes
- Spinal Reflexes
- Afferent Reflexes
- Efferent Reflexes.
Answer: 2. Spinal Reflexes
Question 39. The Axon Membrane Shows A Positive Charge On the Tire Outside And an exampleative Charge Inside, This Is Called :
- Action Potential
- Resting Potential
- Differential Potential
- Reflex Action.
Answer: 2. Resting Potential
Question 40. The Duration Of . Lhsohite Refractory Period Of A Nerve Fibre is :
- 1/10 Second
- 1/1000 Second
- 1/10000 Second
- 1/100 Second.
Answer: 2. 1/1000 Second
Question 41. The Hormone Adrenaline Is the Same As The Neurotransmitter:
- Epinephrine
- Norepinephrine
- Gaba
- Acetylcholine.
Answer: 1. Epincphirine
Question 42. The Term Arachnoid Is Derived From Arachine And Means :
- Tough
- Net-Like
- Fibre-Like
- Web-Like.
Answer: 4. Web-Like
Question 43. Which One Of The Following Nerves Is Not Related To The Movement Of Eye Ball?
- Oculomotor
- Abducens
- Trochlear
- Glossopharyngeal.
Answer: 4. Glossopharyngeal.
Question 44. Central Canal Of Frog Lined By Ependyma Is A Continuation Of:
- Rhinocoel
- Parasol
- Constriction Of Pupil
- 3rd Ventricle.
Answer: 3. Constriction Of Pupil
Question 45. Which One Is A Function Of Parasympathetic Nervous System In Mammals?
- Acceleration Of HeartBeat
- Constriction Of Pupil
- Stimulation Of Sweat Glands
- Contraction Of Arrector Pili Muscles.
Answer: 2. Constriction Of Pupil
Question 46. Which One Of The Following Is The Effect Of parasympathetic Nervous System :
- Increasing Blood Pressure
- Secretion Of Digestive Juice
- Dilating Pupil
- Increasing Cardiac Output.
Answer: 2. Secretion Of Digestive Juice
Question 47. Vagus Nerve Is A
- Mixed Xth Cranial Nerve
- Mixed Xth Cranial Nerve
- Mixed Xth Thoracic Nerve
- Sensory Xth Cranial Nerve
Answer: 1. Mixed Xth Cranial Nerve
Question 48. The Number Of Spinal Nerves In Humans Is
- 10 Pairs
- 12 Pairs
- 43 Pairs
- 31 Pairs.
Answer: 4. 31 Pairs.
Question 49. The third And Fourth Ventricles Of The Brain Are Conne
- Aqueduct Of Sylvius
- Foramen Of Monro
- Foramen Of Magnum
- Corpus Callosum.
Answer: 1. Aqueduct Of Sylvius
Question 50. Identify The Origin Of Sympathetic Nerve Fibres And The Location Of Their Ganglia.
- The Arise From Thoraco-Lumber Rfor Exampleion Of Spinal Cord And Form Ganglia Just Beside The Vertebral Column.
- They Arise From Thoraco-Cervical Rfor Exampleion Of Spinal Cord And Form Ganglia Just Beside The Vertebral Column.
- They Arise From Cranio-Sacral Rfor Exampleion Of the Spinal Cord And Form Ganglia Very Close To the Effector Organ.
- They Arise From the Thoracolumber Region Of the Spinal Cord And Form Ganglia Very Close To the Effector Organ.
Answer: 1. The Arise From Thoraco-Lumber Rfor Exampleion Of Spinal Cord And Form Ganglia Just Beside The Vertebral Column.
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