Neuro/Breast Flashcards
The Central Nervous System (CNS) consists of the
Brain and spinal cord
The Peripheral Nervous System (PNS) consists of
12 cranial nerves
31 pairs of spinal nerves
Autonomic Nervous System (ANS)
Somatic Nervous System (SNS)
Sympathetic vs. parasympathetic?
Sympathetic –> Fight or Flight
Parasympathetic –> Rest & Digest
What is the function of the somatic nervous system?
Voluntary Control of Movements
What does the frontal lobe do?
Primary Motor Cortex, Personality, Behavior, Emotion, Intellect, Skilled Movement
What does the temporal lobe do?
Sounds (Perception & Interpretation), Smell
What does the parietal lobe do?
Processes sensory data
What does the occipital lobe do?
Visual Cortex & Interpretation of Visual Data
What is Broca’s area and what happens when there is a deficit to the region?
Broca’s Area –> Frontal Lobe, Left Side, Speech & Motor
Deficit to Broca’s Region (i.e. Stroke) –> Broca’s Aphasia=Paraphasia –> Person can Hear and Comprehend words but is unable to speak correctly. Incoherent words are substituted.
What is Wernike’s area and what happens when there is a deficit to the region?
Wernike’s Area –> Temporal Lobe, Left Side, Language & Comprehension
Deficit to Wernike’s Region –> Wernike’s Aphasia (AKA Receptive Aphasia) –> Person has difficulty understanding written or spoken language.
Word salad.
What is the thalamus?
The brain’s relay station
What is the hypothalamus?
The body’s thermostat. Maintains homeostasis.
What does the cerebellum control?
Coordination, Equilibrium, Posture, and Position Sense
What does the brainstem regulate?
Heart rate, breathing, and swallowing.
Where do the cranial nerves originate from?
Brainstem
What can happen if the brainstem is damaged?
Can lose the airway very quickly.
The CNS pathway has a _____________ representation.
Crossed
Left cerebral cortex receives sensory data from and controls the right side motor function.
Right cerebral cortex receives sensory data from and controls left side motor function.
What does the descending tract control and which way does it move?
Motor and DOWN to the body
What does the ascending tract control and which way does it move?
Sensory and UP to the brain
Afferent vs. Efferent
Afferent - Sensory Towards Brain
Efferent - Motor Away from Brain
VEMDAS
Ventral –> Efferent –> Motor —> Dorsal –> Afferent –> Sensory
Deep tendon reflex
Muscle tendon
Lower extremities- Patellar, Achilles, and Hamstring
Upper extremities- Triceps, Biceps, and Brachioradialis
Superficial reflex
Abdominal, Corneal (CN 5&7), Cremasteric (L1/2)
Visceral reflex
Pupillary reflex to light
PERRLA
Pathologic reflex
Plantar reflex –> Babinski Sign –> Fanning of toes –> positive up to age 24 months
If positive after 24 months = damage to brainstem
Normal plantar reflex is downgoing on toes.
Paresthesia
Abnormal Sensation
Loss of SENSORY Function
Paralysis
Loss of MOTOR Function
Paresis
Partial or Incomplete Paralysis (i.e. Hemiparesis)
Paraphasia
Person can Hear and Comprehend words but is unable to speak correctly. Incoherent words are substituted.
Ex: Stroke Broca’s Aphasia
ETOH can cause neuro defects. Why?
CNS depressant
Leads to impairment
Examples: Alcoholic Neuropathy, Wernicke’s Encephalopathy, Korsakoff’s Psychosis
Street drugs cause
Altered mental status
CNS depressants
Barbiturates, Benzodiazepines
CNS stimulants
Cocaine, Methamphetamines
What are ADL’s and some examples?
Activities of Daily Living
Feeding
Continence
Transferring
Toileting
Dressing
Bathing
What are iADL’s and some examples?
Instrumental Activities of Daily Living
Using the telephone
Shopping
Preparing Food
Housekeeping
Doing Laundry
Using Transportation
Handling Medications
Handling Finances
When is the mental status assessment completed?
Throughout the exam
ANO x3
Alert and Oriented (Person, place, and time)
MMSE
Mini Mental State Examination
What are the five levels of consciousness?
Alert
Lethargy
Obtunded
Stuporous
Comatose
Patient is able to look and fully respond to stimuli. LOC is __________.
Alert
Patient is drowsy, but opens eyes. Responds to questions then falls asleep. LOC is __________.
Lethargy
Patient opens eyes, responds slowly, and is somewhat confused. LOC is __________.
Obtunded
Patient arouses from sleep after painful stimuli (Ex: sternum rub). Verbal responses are slow or absent. Lapses into unresponsive state after stimuli. LOC is __________.
Stuporous
Patient remains unarousable with eyes closed even with painful stimuli. LOC is __________.
Comatose
Cranial Nerves 1-12
Only Owls Observe Them Traveling And Finding Voldemort Guarding Very Secret Horcruxes.
Some Say Marry Money But My Brother Says Big Butts Matter Most.
What is the Snellen chart used for?
To assess distance vision
If the patient normally wears glasses or contact lenses, then this test should be assessed both with and without their vision aids.
What is the Rosenbaum chart used for?
To assess near vision
Patient holds 14” from eyes
What is visual inattention?
When testing peripheral vision, you move both fingers to see if patient can identify that it is happening.
Normal inattention –> Patient can identify that both fingers are wiggling
Cranial nerves 3, 4, & 6 ….
Make the eyes do tricks
What muscles does CN 3 control?
Oculomotor controls Superior Rectus, Inferior Oblique, Inferior Rectus, Medial Rectus (All other Movements)
What muscles does CN 4 control?
Trochlear controls Superior Oblique ONLY –> Moves eyes inferior & medial (down & in)
What muscles does CN 6 control?
Abducens controls Lateral Rectus ONLY –> Moves eyes laterally