Untitled Flashcards Set

What type of receptor is likely involved in a patient experiencing tingling and numbness in their fingertips?

Mechanoreceptor

What type of reflex occurs when a person touches a hot stove and immediately withdraws their hand?

Withdrawal reflex

Which function is most likely impaired when a stroke causes damage to the right hemisphere of the brain?

Spatial awareness

What is the most likely effect on neurons if a drug blocks the activity of voltage-gated sodium channels?

Impaired action potential propagation

What phenomenon describes pain felt in the left arm during a heart attack?

Referred pain

Which type of nervous system activity is enhanced when a sprinter notices improved reaction times after training?

Somatic nervous system

Which brain structure is most likely affected in a patient exhibiting signs of Parkinson’s disease?

Basal nuclei

What brain system helps a student studying in a noisy environment filter irrelevant stimuli?

Reticular activating system

If a person consumes a drug that mimics the activity of beta receptors, what effect is likely?

Increased heart rate

Which brain region is most likely affected if a patient has difficulty regulating body temperature after damage?

Hypothalamus

What could cause a nerve impulse to fail to propagate past a certain point?

Absolute refractory period

Which structure in the inner ear is responsible for sensing motion when a person feels dizzy after spinning?

Semicircular canals

Which part of the brain might be involved if a patient reports difficulty with fine motor skills?

Cerebellum

What condition might a person have if they experience blurry vision due to their lens losing flexibility?

Presbyopia

What is the likely result when a neurotransmitter binds to a ligand-gated channel on a postsynaptic neuron?

Ion flow changes across the membrane

Which brain wave activity might be altered in a child diagnosed with ADHD?

Beta waves

Which cranial nerve might be impaired if a patient cannot shrug their shoulders or turn their head properly?

Accessory nerve (XI)

What physiological change occurs when a sprinter activates their sympathetic nervous system during a race?

Increased heart rate

Which functional area is likely impaired in a person with damage to the frontal lobe who has difficulty planning?

Prefrontal cortex

Which nervous system division controls pupil dilation in response to a loud noise?

Sympathetic nervous system

What function will likely be impaired if a patient sustains an injury to the dorsal root of their spinal cord?

Sensory input to the CNS

Which brain region is most likely affected if a person reports difficulty with short-term memory after a head injury?

Hippocampus

What causes referred pain in a runner experiencing pain in their left shoulder during a heart attack?

Misinterpretation of nerve signals by the brain

Which phase of action potential is directly inhibited when a toxin prevents depolarization of neurons?

Depolarization

Which part of the brain is primarily involved when a patient undergoing physical therapy practices balance exercises?

Cerebellum

Which structure transmits sound to the middle ear and might be affected in a child with otitis media?

Eustachian tube

Which cranial nerve might be impaired if a patient is unable to move their tongue properly?

Hypoglossal nerve (XII)

Which sensory receptors are likely damaged if a patient loses proprioception in their lower limbs?

Proprioceptors

What happens to synaptic transmission if a chemical blocks ligand-gated sodium channels on postsynaptic neurons?

Block depolarization of postsynaptic neurons

Which type of sensation is most likely affected by damage to the dorsal column-medial lemniscal pathway?

Vibration and proprioception

What causes symptoms of multiple sclerosis, including slowed neural conduction?

Demyelination of axons

What will be the primary consequence in neurons if a child suffers from a genetic condition preventing proper sodium-potassium pump function?

Reduced resting potential

What motor and sensory deficits might a patient experience with damage at the level of T5 in the spinal cord?

Loss of lower limb sensation and movement

Which brain system is involved when a person smells fresh cookies and experiences a flood of childhood memories?

Limbic system

Which cranial nerve is most likely affected if a person’s sense of smell is impaired due to an infection?

Olfactory nerve (I)

What part of the autonomic nervous system is malfunctioning if a person’s pupils remain dilated in a brightly lit room?

Sympathetic division

What is the most likely effect of administering a drug that blocks acetylcholine receptors?

Decreased parasympathetic activity

Which structure is most likely damaged if a patient complains of difficulty hearing after prolonged exposure to loud noise?

Hair cells in the cochlea

Which cranial nerve might be damaged if a person's taste perception is limited to sweet and salty?

Facial nerve (VII)

What symptom might a patient exhibit if they have a tumor compressing the cerebellum?

Difficulty with fine motor coordination

If a drug mimics the effects of norepinephrine, which symptom is likely?

Increased respiratory rate

Which brain structure might be damaged if a patient experiences loss of voluntary motor control on the left side of their body?

Right primary motor cortex

Which tracts might be affected if a person has difficulty maintaining posture and balance after a traumatic injury?

Reticulospinal tracts

Which cranial nerve might be responsible for a child diagnosed with strabismus?

Oculomotor nerve (III)

Which type of receptor is likely damaged if a person cannot perceive vibration in their fingers?

Mechanoreceptor

Which structure is involved if a patient struggles with accommodation when shifting focus between near and distant objects?

Lens

Which part of the nervous system might be impaired if a person’s heart rate fails to decrease during rest?

Parasympathetic division

What type of receptors are being overstimulated in a person exposed to organophosphates?

Muscarinic receptors

Which area is likely affected if a person with damage to the occipital lobe reports visual hallucinations?

Primary visual cortex

Which spinal cord pathway is likely affected if a person has difficulty detecting fine touch on their hand?

Dorsal column-medial lemniscal system

Which cranial nerve might be affected if a patient reports a metallic taste in their mouth after chemotherapy?

Facial nerve (VII)

Which structure is most likely deteriorating if a person develops age-related hearing loss?

Cochlear hair cells

Which type of memory is affected if a student struggles to remember material they just studied?

Short-term memory

What physiological change is expected if a drug inhibits the function of alpha receptors?

Decreased heart rate

Which component might be involved if a patient with damage to the limbic system has difficulty regulating emotions?

Amygdala

Which pathway might be damaged if a person with a spinal injury has difficulty sensing pressure and vibration but can feel pain?

Dorsal column-medial lemniscal system

Which part of the eye is most likely affected if a person is diagnosed with glaucoma?

Aqueous humor drainage system