Q1
What is the pituitary gland called?
AThe 'master gland'
BThe 'stress gland'
CThe 'sugar gland'
DThe 'growth gland' only
ICSEClass 10 (ICSE)BiologyCh 12 · Topic 1
The Endocrine System
The endocrine system uses hormones secreted by glands to regulate body functions like growth, metabolism, and reproduction over longer times
Core concept
The pituitary gland, often called the 'master gland,' controls other endocrine glands and secretes hormones like growth hormone.
How it works
The thyroid gland secretes thyroxine, regulating metabolic rate, with both hypo- and hyper-thyroidism causing health issues.
Why it matters
The pancreas secretes insulin and glucagon, regulating blood sugar levels, with insulin deficiency causing diabetes.
Key detail
The adrenal glands secrete adrenaline, preparing the body for 'fight or flight' responses during stress or emergency situations.
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Quick notes
• Pituitary gland: the 'master gland'.
• It controls other endocrine glands.
• Thyroid gland secretes thyroxine.
• Thyroxine regulates metabolic rate.
• Pancreas secretes insulin and glucagon.
• These regulate blood sugar levels.
• Insulin deficiency causes diabetes.
• Adrenal glands secrete adrenaline for 'fight or flight'.