Question

In emergency, blood pressure is controlled by

• A. Thymus
• B. Adrenal
• C. Thyroid
• D. Corpus luteum

Answer 1

Answer: (B)

Adrenal

A. Thymus gland is associated with the development of immune system and present on the dorsal side of heart. It secretes thymosin hormone which plays an important role in the differentiation of T-lymphocytes.

B. Adrenal gland is present on upper side of kidneys and has two parts, adrenal cortex which secrete glucocorticoids, mineralocorticoids and sexocorticoids and adrenal medulla which secrete adrenaline and nor-adrenaline hormone.

C. Thyroid gland is situated between the trachea and larynx in the neck and secretes thyroxine hormone which increases oxygen consumption by metabolically active tissues.

D. Corpus luteum is formed in ovary after ovulation and degenerates in absence of pregnancy but if pregnancy occurs it persists and secretes progesterone and oestrogen hormones.

In emergency conditions, blood pressure is controlled by adrenaline and nor-adrenaline which are secreted from adrenal gland.

So, the correct answer is 'Adrenal'