alleryStart learning →Pituitary ACTH primarily stimulates the
- Adrenal cortex
- Adrenal medulla
- Thyroid gland
- Pancreatic islets
Show answer and solution
Correct answer: A. Adrenal cortex
ACTH stimulates the adrenal cortex to synthesise and secrete glucocorticoids.
ICSE Class 10 Human Anatomy and Physiology: endocrine system — practice questions — page 3
Explore 68 free Human Anatomy and Physiology: endocrine system questions in ICSE Class 10 Biology. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 61–68 of 68.
Pituitary ACTH primarily stimulates theRead the answer and worked solution →Besides uterine contraction, oxytocin promotesRead the answer and worked solution →Which sequence shows normal thyroid negative feedback?Read the answer and worked solution →A narrow tissue bridge, the isthmus, joins theRead the answer and worked solution →Match each endocrine hormone with its glandular source and target effect:Read the answer and worked solution →Match each endocrine disorder with its hormonal cause:Read the answer and worked solution →Match each adrenal hormone with its physiological function:Read the answer and worked solution →Match each posterior pituitary neurohormone with its role:Read the answer and worked solution →
Worked practice questions
Besides uterine contraction, oxytocin promotes
- Milk formation
- Glucose storage
- Milk ejection
- Water retention
Show answer and solution
Correct answer: C. Milk ejection
Oxytocin stimulates milk ejection from the mammary glands.
Which sequence shows normal thyroid negative feedback?
- Thyroxine falls, TSH falls
- Thyroxine rises, TSH falls
- Thyroxine rises, TSH rises
- Thyroxine falls, TSH stays fixed
Show answer and solution
Correct answer: B. Thyroxine rises, TSH falls
Higher circulating thyroid hormone suppresses pituitary TSH secretion through negative feedback.
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