Hormones

Question 1

Hormone

Answer 1

chemical messenger created by a cell that changes the cellular activity of other cells

Question 2

Endocrine glands

Answer 2

secrete hormones directly into surrounding spaces
-then transported via blood

Question 3

How to neurotransmitters affect the body

Answer 3

act immediately on body but only last a little bit (nervous system)

Question 4

Are hormones fast acting?

Answer 4

No, hormones take longer to created intended effect on body

Question 5

Hormones are classified into 4 different groups:

Answer 5

1. Amine
2. Peptide
3. Steroid
4. Protein

Question 6

Amine Hormones

Answer 6

amino acids with modified groups
ex. norepinephrine

Question 7

Peptide Hormones

Answer 7

shorts chains of linked amino acids
ex. oxytocin

Question 8

Protein Hormone

Answer 8

Long chains of amino acids
ex. Human Growth Hormone

Question 9

Steroid Hormones

Answer 9

Derived from lipid cholesterol
ex. testosterone and progesterone

Question 10

How do hormones take action?

Answer 10

hormones in blood diffuse into fluids around cell
-the cell may have specific receptors for hormone

Question 11

Lipid soluble hormones

Answer 11

diffuse through the cell membrane of target cells

Question 12

Water soluble hormones

Answer 12

bind to receptor protein on the plasma membrane of the cell

Question 13

1st stimuli that releases hormones from endocrine gland

Answer 13

Hormones from other endocrine glands
-ex. anterior pituitary glands releases TSH to trigger thyroid to release T4 and T3

Question 14

2nd stimuli that releases hormones from endocrine gland

Answer 14

The chemistry of the blood
-ex. after a meal, glucose is detected in the blood, therefore pancreas releases insulin

Question 15

3rd stimuli that releases hormones from endocrine gland

Answer 15

Nerve stimulation
-ex. sympathetic nervous system triggers release of epinephrine in fight or flight