Page 25 - SAAT BIOLOGY PART 2

SAAT BIOLOGY MR.MOHAMED ELGAYAR MRPROF.NET
Pituitary gland: master gland, located at the base of the

brain, secretes human growth Hormone (hGH).

Thyroid gland: produces thyroxine and calcitonin

hormones which lower the calcium in the blood

Parathyroid gland: produces parathyroid hormones which

raise the calcium in the blood

Adrenal glands (located just above the kidneys): secretes

three hormones

Aldosterone: important for reabsorbing Sodium.

Cortisol: reduces inflammations

Adrenaline, epinephrine, or norepinephrine occurs when

there seems to be a sudden burst of energy during a

stressful situation.

Remember: the sympathetic system is most active in times

of emergency of stress, while the parasympathetic system

is most active when the body is relaxed.

MRPROF.NET MR.MOHAMED ELGAYAR MRPROF.NET@GMAIL.COM