14 Nervous System II Quizzes Flashcards
Name the THREE layers of the meninges
Dura mater
Arachnoid mater
Pia mater
State what is found in the subarachnoid space
Cerebrospinal Fluid
Name the cell that maintains the Blood Brain Barrier
Astrocytes
Name the THREE parts of the brain stem
Medulla oblongata
Pons
Midbrain
Describe the functions of the cerebellum
Balance posture co-ordinate sequence of movement
Correct errors during ongoing movement
Learning an instrument ,
learning to walk, cognition,
thoughts and language processing
State ONE key function of the thalamus
Relay centre for sensory information
Remember ‘receptionist’ analogy
Name the TWO arterial systems that deliver oxygenated blood to
the brain
Carotid
Vertebral
Describe what information is carried by the corticospinal tract
Motor information
Name cranial nerve II. Describe the function of this nerve
Optic nerve
Vision
Name the longest cranial nerve. State ONE function of this nerve.
X Vagus nerve
Gut motility
Lowering BP/heart rate
Sensations from GIT/respiratory tract
Explain what is meant by papilloedema. What might this indicate?
Bulging/swelling of the optic disc
Indicates raised intracranial pressure
Define the pathology hydrocephalus.
List THREE symptoms.
Excessive CSF
Headache, neckpain,
Nausea, vomiting
In infants : enlargement of head circumference
Explain what is meant by a contrecoup injury.
The location of the injury is contralateral to the site of impact
List FOUR symptoms of migraines.
Headache
Vomiting/nausea
Aura
Photophobia
Phonophobia
Explain why benign brain tumours can be life-threatening.
Because they are growing within a confined cavity
Explain what would constitute a positive straight leg raise test.
Reproduction of symptoms down the leg within the first 45° as leg is lifted
Describe how you would perform Romberg’s test.
Patient feet together, eyes closed
Observe for any imbalance
What might an absent knee jerk response indicate?
Could be normal
Could indicate peripheral nerve problem
Could indicate hyperthyroidism
An adult has an up-going plantar response. What might this indicate?
CNS lesion
What age group is most prone to spinal disc protrusions?
30-40