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SBI172 > Week 10 - PNS > Flashcards

Week 10 - PNS Flashcards

1
Q

Which of the following is a component of the Peripheral Nervous System (PNS)? A) Brain B) Spinal cord C) Cranial nerves D) Cerebellum

A

C) Cranial nerves

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2
Q

How many pairs of spinal nerves are there in the PNS? A) 12 B) 24 C) 31 D) 46

A

C) 31

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3
Q

The sensory division of the PNS is also known as the: A) Efferent division B) Afferent division C) Motor division D) Autonomic division

A

B) Afferent division

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4
Q

The motor division of the PNS is divided into: A) Somatic and Sensory B) Somatic and Autonomic C) Autonomic and Sensory D) Sensory and Afferent

A

B) Somatic and Autonomic

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5
Q

The Somatic Nervous System controls: A) Involuntary movements B) Voluntary muscle movements C) Digestion D) Heart rate

A

B) Voluntary muscle movements

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6
Q

Which receptor detects pain? A) Mechanoreceptor B) Chemoreceptor C) Nociceptor D) Photoreceptor

A

C) Nociceptor

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7
Q

Which type of receptor is responsible for detecting changes in temperature? A) Photoreceptor B) Thermoreceptor C) Chemoreceptor D) Proprioceptor

A

B) Thermoreceptor

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8
Q

What do exteroceptors respond to? A) Internal organ stimuli B) External stimuli C) Position and movement D) Pain only

A

B) External stimuli

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9
Q

Which receptor is located in the basal layer of the epidermis and detects light pressure? A) Merkel discs B) Ruffini endings C) Pacinian corpuscles D) Meissner’s corpuscles

A

A) Merkel discs

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10
Q

What do Meissner’s corpuscles detect? A) Deep pressure B) Light touch C) Vibration D) Stretch

A

B) Light touch

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11
Q

Which of the following receptors detects deep and continuous pressure? A) Merkel discs B) Meissner’s corpuscles C) Ruffini endings D) Nociceptors

A

C) Ruffini endings

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12
Q

The circuit level of neural integration involves: A) Sensory receptors B) Delivery of impulses to the cerebral cortex C) Reflex arcs D) Feature abstraction

A

B) Delivery of impulses to the cerebral cortex

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13
Q

What is perceptual detection? A) Ability to detect a stimulus has occurred B) Ability to identify the intensity of the stimulus C) Ability to determine the location of the stimulus D) Ability to recognise patterns

A

A) Ability to detect a stimulus has occurred

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14
Q

Which receptors adapt quickly to stimulus changes? A) Tonic receptors B) Phasic receptors C) Nociceptors D) Proprioceptors

A

B) Phasic receptors

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15
Q

What is the first step in a reflex arc? A) Motor neuron transmits signal B) Effector cells respond C) Integration in CNS D) Nociceptor senses stimulus

A

D) Nociceptor senses stimulus

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16
Q

Sharp pain is transmitted by: A) C fibres B) A delta fibres C) Non-myelinated fibres D) Nociceptors

A

B) A delta fibres

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17
Q

What neurotransmitters are involved in pain transmission? A) Dopamine and serotonin B) Endorphins and enkephalins C) Glutamate and substance P D) Acetylcholine and GABA

A

C) Glutamate and substance P

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18
Q

Which nerve controls diaphragm function? A) Median nerve B) Radial nerve C) Phrenic nerve D) Ulnar nerve

A

C) Phrenic nerve

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19
Q

What is the term for pain that is felt in an area other than its origin? A) Referred pain B) Phantom limb pain C) Hyperalgesia D) Chronic pain

A

A) Referred pain

20
Q

How many pairs of cranial nerves are there? A) 10 B) 11 C) 12 D) 14

A

C) 12

21
Q

Which cranial nerve is responsible for smell? A) Optic B) Olfactory C) Trigeminal D) Facial

A

B) Olfactory

22
Q

Which cranial nerve controls lateral eye movement? A) Oculomotor B) Abducens C) Trochlear D) Optic

A

B) Abducens

23
Q

Bell’s palsy affects which cranial nerve? A) Vagus B) Trigeminal C) Facial D) Hypoglossal

A

C) Facial

24
Q

Which cranial nerve is involved in hearing and balance? A) Vestibulocochlear B) Vagus C) Glossopharyngeal D) Hypoglossal

A

A) Vestibulocochlear

25
Q

Which nerve innervates the tongue for speech? A) Glossopharyngeal B) Hypoglossal C) Facial D) Vagus

A

B) Hypoglossal

26
Q

The trigeminal nerve is responsible for: A) Vision B) Facial sensation and chewing C) Smell D) Balance

A

B) Facial sensation and chewing

27
Q

Which of the following is an autonomic function of the vagus nerve? A) Hearing B) Taste C) Control of heart and digestive functions D) Eye movement

A

C) Control of heart and digestive functions

28
Q

Which layer surrounds individual axons in a nerve? A) Epineurium B) Perineurium C) Endoneurium D) Fascicle

A

C) Endoneurium

29
Q

Which nerve plexus innervates the upper limbs? A) Cervical B) Brachial C) Lumbar D) Sacral

A

B) Brachial

30
Q

What is the largest nerve in the body? A) Radial nerve B) Median nerve C) Sciatic nerve D) Ulnar nerve

A

C) Sciatic nerve

31
Q

Which plexus innervates the legs and feet? A) Cervical B) Lumbar C) Sacral D) Brachial

A

C) Sacral

32
Q

Which nerve is often affected in carpal tunnel syndrome? A) Ulnar B) Radial C) Phrenic D) Median

A

D) Median

33
Q

Which of the following describes hyperalgesia? A) Pain felt in another body region B) Long-lasting pain amplification C) Short-term sharp pain D) Complete numbness

A

B) Long-lasting pain amplification

34
Q

Phantom limb pain can be reduced by: A) Using NSAIDs B) Blocking spinal pain pathways with an epidural C) Stretching exercises D) Surgery

A

B) Blocking spinal pain pathways with an epidural

35
Q

Which of the following is the main neurotransmitter in the pain-suppressing system? A) Dopamine/serotonin B) Acetylcholine C) Endorphins/enkephalins D) Glutamate

A

C) Endorphins/enkephalins

36
Q

Reflex arcs bypass which part of the nervous system? A) Spinal cord B) Brain C) Cranial nerves D) Peripheral nerves

A

B) Brain

37
Q

What does the femoral nerve innervate? A) Diaphragm B) Anterior thigh muscles C) Facial muscles D) Back muscles

A

B) Anterior thigh muscles

38
Q

Which layer of the nerve encloses fascicles? A) Epineurium B) Endoneurium C) Perineurium D) Myelin sheath

A

C) Perineurium

39
Q

Which cranial nerve innervates the trapezius and sternocleidomastoid muscles? A) Hypoglossal B) Accessory C) Glossopharyngeal D) Trigeminal

A

B) Accessory

40
Q

The sciatic nerve originates from which plexus? A) Lumbar B) Cervical C) Brachial D) Sacral

A

D) Sacral

41
Q

Which cranial nerve carries taste sensations from the anterior two-thirds of the tongue? A) Vagus B) Glossopharyngeal C) Facial D) Trigeminal

A

C) Facial

42
Q

Which spinal nerve root carries motor signals? A) Dorsal B) Ventral C) Rami D) Trunk

A

B) Ventral

43
Q

The optic nerve is responsible for: A) Smell B) Hearing C) Vision D) Taste

A

C) Vision

44
Q

Which nerve controls muscles responsible for chewing? A) Vagus B) Trigeminal C) Facial D) Glossopharyngeal

A

B) Trigeminal

45
Q

What type of receptors are involved in detecting muscle stretch? A) Mechanoreceptors B) Photoreceptors C) Proprioceptors D) Nociceptors

A

C) Proprioceptors

46
Q

What type of sensory receptor is fast adapting and detects changes in the external environment? A) Tonic B) Phasic C) Nociceptors D) Proprioceptors

A

B) Phasic

47
Q

Which cranial nerve controls pupil constriction and lens focusing? A) Abducens B) Optic C) Oculomotor D) Trochlear

A

C) Oculomotor

SBI172 (11 decks)

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