Hormones

Question 1

Antidiuretic Hormone (ADH)
Other name?
Where does it come from?
Stimulation?
Target?
Effect?

Answer 1

Name= Vasopressin

Where:
Supraoptic Nucleus (SON) w/in hypothalamus
Stored & secreted from Posterior Pituitary Gland

Stimulation: dehydration

Target: Kidney

Effect:
- Increase reabsorption H2O to prevent dehydration
- BP control by vasocontriction

ETOH (ethyl alcohol) blocks ADH

Question 2

Oxytocin
Where produced?
Target?
Effect?

Answer 2

Where:
Paraventricular nucleus (PVN) w/in hypothalamus. Stored & secreted from posterior pituitary gland

Stimulation:
- cervical pressure (birth)
- nipple stimulation
- milk ejection
- sexual arousal*
- nuturing*

Target:
- Smooth Muscle of the
UTERUS
- Male reproductive tract:
ductus deferens
epididymus
prostate gland

Effect:
milk ejection
Uterus contraction
Ejaculation
Orgasm
feelings sexual satisfaction & nuturing

= (-) Negative Feedback Loop

Question 3

Growth Hormone (GH)
Other Name?
Stimulation?
Target?
Effect?

Answer 3

= Somatotropin
Stimulus/ Regulation:
(regulator hormones from hypothalamus)

• Growth Hormone
  Releasing Factor (GHRF)
• Growth Hormone
  Inhibiting Factor
  (GHIF = somatostatin)

Target:
- Muscles
- Skeleton
Effect:
Growth & Repair

Question 4

Pituitary Giant

Answer 4

when someone has a tumor in the anterior pituitary gland creating excess amt of GH
- 8 ft tall
- not healthy, hard on heart
- shorter lifespan

Question 5

Thyroid Stimulating Hormone (TSH)
Where?
Stimulus?
Target?
Effect?

Answer 5

Where: Anterior Pituitary Gland

Stimulus: low (T3/T4) thyroid hormones

Target: Thyroid gland (follicular cells)

Effect:
- Follicular cells produce colloid precurser to T3/T4
- Increase cell metabolsim of ≈ all body cells

= (-) Negative Feedback Loop