Neurology III

Question 1

What response systems does the hypothalamus coordinate?

Answer 1

Neural Systems:

1. Autonomic responses –> brainstem and spinal cord
2. Behavior –> cerebral cortex, amygdala, hippocampus

Endocrine Systems:

3. Endocrine responses –> Release of pituitary hormones

Question 2

What functions are regulated by the hypothalamus?

Answer 2

Hunger and energy metabolism

Thirst and fluid balance

Body temp

Emotions arne response to stress

Reproduction

Immune response

Question 3

How does the hypothalamus regulate Auntonomic functions?

Answer 3

Sends signals through brainstem to spinal cord

• *Anterior and Medial** Hypothalamic areas = parasympathetic control
• Decrease HR
• Increase peripheral vasodilation
• Increase GI tract activity
• *Lateral and Posterior** areas = sympathetic control
• Increase HR
• Increase BP
• Decrease GI tract activity
• Pupillary dilation