Please Define the Following Terms or Concepts in No More

Please define the following terms or concepts in no more than two sentences, and give an example to support your definition.
A) Acetylcholine
B) ACTH axis
C) Adrenal cortex
D) Adrenal gland
E) Adrenal medulla
F) Allostatic load
G) Amygdala
H) Anabolic functioning
I) Catabolic functioning
J) Central nervous system (CNS)
K) Cerebration
L) Corticosteroids
M) Dehydroepiandrosterone (DHEA)
N) Glucocorticoids
O) Hypothalamic-pituitary-adrenal (HPA) axis
P) Hypothalamus
Q) Melatonin
R) Immediate stress effects
S) Intermediate stress effects
T) Limbic system
U) Mineralocorticoids
V) Norepinephrine
W) Neuroplasticity
X) Parasympathetic response
Y) Pituitary gland
Z) Prolonged stress effects
AA. Psychophysiology
AB. Reticular activating system (RAS)
AC. Serotonin
AD. Sympathetic response
AE. Thyroxin axis
AF. Vasopressin axis
AG. Panic attack
AH. Vagus nerve