diencephalon--intensive

Question 1

diencephalon and 4 parts

Answer 1

• at physical center of the brain
• 4 components
  
  1. thalamus
  2. hypothalamus
  3. epithalamus
  4. subthalamus

Question 2

Thalamus

Answer 2

• part of diencephalon
• 80% of diencephalon
• fxn: main entry route of sensory data into cerebral cortices; regulates cortical activity by controlling which input should continue to cerebral cortex
• sensory shall/must pass through the thalamus

Question 3

hypothalamus

Answer 3

• part of diencephalon
• park of endocrine system–secretes hormones to trigger pituitary gland–ADH (antidiuretic hormone), oxytocin
• connect to limbic system via mammillary bodies–connect with hippocampus
• fxn: neurons form several vital functions critical to survival: regulation of autonomic nervous system, sleep/wake cycle, thirst and hunger, and body temperature
• without a hypothalamus, you are hypothermic, hypo-thirsty, and hypo-sleepy, *ANS

Question 4

epithalamus

Answer 4

• part of diencephalon

- fxn: connects to endocrine system via pineal gland; secretes melatonin–sleep wake cycle

Question 5

subthalamus

Answer 5

• part of diencephalon

- fxn: functionally connected to basal nuclei; help control movement