ANS, Hypothalamus, & Limbic System (Mixed)

Question 1

2 Afferent Pathways to enter the CNS

Answer 1

1. Spinal cord via dorsal roots
2. Brainstem via CN VII, IX, X (all transmit taste, later 2 from viscera)

Question 2

Structure: Memory center

Answer 2

Hippocampus

Question 3

System: Cell bodies of preganglionic nerusons located in the lateral horn from T1-L2

Answer 3

SNS

Question 4

Describe Central Regulation

Answer 4

Visceral infromation enters the brainstem via CN and converges on the solitary nucleus in the medulla

Information from the solitary nucleus is relayed to visceral control areas in pons/medulla

It’s then relayed to modulary areas to regulate the activity of areas that direclty control a particular function (hypothalmus, thalamus, limbic system)

Question 5

System: Cell bodies of preganglionic nureons located in cranial nuclei III, VII, IX, X and sacral spinal cord S2-S4

Answer 5

PNS

Question 6

Structure: Fear regulation

Answer 6

Amygdala

Question 7

Structures: Modulate brainstem autonomic control

Answer 7

Hypothalamus

Thalamus

Limbic System

Question 8

5 Structures of the Limbic System

Answer 8

1. Hypothalamus
2. Nuclei of Thalamus
3. Limbic Cortex (cingulate gyrus, parahippocampal gyrus, uncus)
4. Hippocampus
5. Amygdala