Neurophysiology

Question 1

brain stem components

Answer 1

midbrain
pons
medulla

Question 2

brain stem function

Answer 2

1. origin of majority of peripheral cranial nerves
2. cardiovascular, respiratory, and digestive control centers
3. regulation of muscle reflexes involved with equilibrium and posture
4. reception and integration of all synaptic input from spinal cord; arousal and activation of cerebral cortex
5. role in sleep-wake cycle

Question 3

cerebellum function

Answer 3

1. maintenance of balance
2. enhancement of muscle tone
3. coordination and planning of skilled voluntary muscle activity

Question 4

hypothalamus function

Answer 4

1. regulation of many homeostatic functions, such as tempm thirst, urine output, food intake
2. important link between nervous and endocrine
3. extensive involvement with emotion and basic behavioral patterns
4. role in sleep-wake cycle

Question 5

thalamus

Answer 5

1. relay station for all synaptic input
2. crude awareness of sensation
3. come degree of consciousness
4. role in motor control

Question 6

basal nuclei

Answer 6

1. inhibition of muscle tone
2. coordination of slow, sustained movements
3. suppression of useless patterns of movement

Question 7

cerebral cortex

Answer 7

1. sensory perception
2. voluntary control of movement
3. language
4. personality traits
5. sophisticated mental events such as thinking, memory, decision making, creativity, self-consciousness