Midterm - Brain/Brainstem/Spinal Cord Flashcards Preview

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Flashcards in Midterm - Brain/Brainstem/Spinal Cord Deck (20):
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Cerebrum

Enables higher symbolic functions
Houses limbic lobe and basal ganglia

1

Thalamus

Relay center for the brain/cortex
Sensory information
Projects afferent a from basal ganglia, limbic system, and cerebellum to primary contexts

2

Thalamus syndrome

Altered thresholds for touch, pain, temperature on contralateral half of body

3

Lateral geniculate body relays

Visual information

4

Brainstem

Regulates cortical arousal and attention
Composed of
midbrain (pupil size and eye movements)
pons (rhythm of respiration and facial movements)
medulla (controls respiration, heart rate, and blood pressure)

5

Cerebellum

Regulates skilled movements
No participation in cognitive participation
Decreasing/stopping movements

6

Rhomberg test

Evaluates propioception

7

Ataxia

Lack of order and no coordination in muscle activities

8

Bradykinesia

Slow movements

9

3 primary vesicles

Prosencephalon - forebrain

Mesencephalon - midbrain

Rhombencephalon - hindbrain

10

Cerebral hemispheres are separated by

Longitudinal or Interhemispheric fissure

11

5 lobes

Frontal - motor cortex
Parietal - sensory cortex
Occipital - visual cortex
Temporal - auditory cortex
Limbic - emotions

12

Brainstem connects...

Diencephalon to spinal cord, midbrain, pons and medulla

13

Spinal cord

Transmission link between brain and body
Bidirectional pathway
Wrapped in 3 meningal layers (Pina mater, arachnoid membrane and dura mater)

14

Spinal divisions

Cervical 8
Thoracic 12
Lumbar 5
Sacral 5
Coccygeal 1

15

Ventricles

CSF circulation and storage
Protects the CNS during excessive head movements
2 lateral, 1 third and 1 fourth ventricle

16

Spinal trigeminal tract

Consists of fibers of trigeminal nerve
Pain touch and temperature in the face

17

Cortical spinal tract

Crosses midline at medulla (crosses in spinal cord)
Controls limbs and involved in voluntary movements

18

Corticobulbar tract

Controls oral movements and swallowing
Crosses in the Brainstem

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4 main neurotransmitters

Acetylcholine
Norepinephrine
Serotonin
Epinephrine