Chapter 6 Flashcards
(42 cards)
Hormone
Messenger produced by endocrine cells
Secreted into the blood via interstitial fluid
Neurohormone
Special class Messenger produced by neurons. Secreted into the blood
Amino acid are
Lipophobic
Where is the amino acid target cell
On cell membrane
Where are amino acids synthesized
Within a neuron
Where are amino acids stores
Vesicles
What are amino acids released by
Exocytosis
Amines are
Lipophobic except thyroid hormones
Amines target receptors found where
On cell membrane
Most abundant type of ligand
Peptide and protein messengers
Peptide ligand more if less than 50
Less than
Protein ligand more of less than 50 amino acids
More than 50
Where are steroid ligands all derived from
Cholesterol
All steroid messengers function as
Hormones
In diffusion through interstitial fluid the target is
Close
Ligand is quickly degraded in what
Diffusion through interstitial fluid
Blood borne transport source and target are where
Distance away
In blood borne transport Lipophobic ligand dissolve in what
Plasma
In blood borne transport lipophilic ligands bind to
Carrier proteins
Endocrine glands derived from
Epithelial tissue
Primary endocrine organs
Hypothalamus pituitary gland Pineal gland Thyroid gland Thymus Adrenal glands Pancreas Gonads
Blood Carrie’s hormones to target cells that contain specific
Receptor proteins
Hypothalamus is the and is link between
Master gland Endocrine and nervous system
Hypothalamus major role in
Regulation of growth development metabolism homeostasis
