A&P UNIT 5 ENDOCRINE

CHEMICAL THAT IS SECRETED BY A CELLTO ACT LOCALLY ON NEIGHBORING CELLS

THIS CHEMICAL SIGINAL ACTS ON THE CELL THAT SECRETED IT.

1. CHEMICALS SECRETED BY NEURONS OF THE NERVOUS SYSTEM.

2.DIFFUSE ACROSS SMALL GAP TO REACH THEIR TARGET CELL.

3. THEY ARE SHORT LIVED (BROKEN DOWN QUICK,SHORT TERM EFFECTS

CHEMICALS SECRETED BY ENDOCRINE GLANDS

CHEMICALS THAT ARE SECRETED BY NEURONS OF THE NERVOUS SYSTEM

THEY ARE CARRIED IN THE BLOOD TO TARGET CELLS WITH RECEPTORS FOR THE GIVEN HORMONE. USUALLY LONG DISTANCES FROM WHERE IT WAS SECRETED

• 1. PRODUCED BY SPECIFIC SECRETORY CELLS
• 2. SECRETED INTO THE BLOOD, PRESENT IN LOW CONCEN.
• 3. RELEASED IN RESPONSE TO SPECIFIC STIMULUS
• 4. EXERT A SPECIFIC EFFECT ON TARGET TISSUE.
• 5.ACHIEVE THEIR EFFECT BY CONTROLLING THE RATE OF ENZYMATIC REACTION.
• 6. IMPORTATN IN CONTROL AND MAINTAINING HOMEOSTASIS