Lecture 1

Question 1

First endocrine experiment

Answer 1

• both testes of chicken removed
  = reduced male characteristics
• but when replaced the testis in another area, the male characteristics returned

Question 2

Endocrine, paracrine and autocrine

Answer 2

1 = travels through blood
2 = acts locally (cell close by)
3 = acts on itself (can be negative feedback)

Question 3

neuroendocrine

Answer 3

nerve cell -> blood vessel -> target cell

Question 4

neurotransmitter

Answer 4

neuron to neuron

Question 5

3 ways to classify based on structure

Answer 5

• peptides proteins and glycoproteins
• steroid hormones
• amines and amino acid derivative

Question 6

patholigical conditions that affect receptors

Answer 6

• abnormal binding site
• regulatory subunits not functionally coupled to the binding site
• regulatory subunits cant produce response
  OR
  the regulatory subunit signals a response even without the hormone

Question 7

what needs to be regulated to regulate hormone uptake

Answer 7

the equilibrium between synthesis and degradation of receptors