Diencephalon

Question 1

diencephalon

Answer 1

relay station for most sensory and motor pathways, controls visceral activities

Question 2

epithalamus

Answer 2

• partially forms roof of diencephalon
• covers third ventricle
• pineal gland: secretes melatonin
• habenular nuclei: relays signals from limbic system to midbrain

Question 3

thalamus

Answer 3

• 2 halves, each composed of a dozen nuclei with axons projecting to regions of cerebral cortes
• main relay center
• sensory impulses converge on thalamus and synapse on one nuclei

Question 4

hypothalamus

Answer 4

• triangular
• infundibulum: anchors pituitary gland to hypothalamus