Question

80 – 82. Match the following hormones with glands which secretes them.

80. Epinephrine

81. Human Chorionic Gonadotropin (HCG)

82. Thyrotropin (TSH)

A. Anterior pituitary gland

B. Posterior pituitary gland

C. Hypothalamus

D. Thyroid gland

E. None of these

PLEASE MAY I HAVE A BRIEF EXPLANATION

Answer 1

80 ANSWER

EPINEPHRINE IS SECRETED BY WHICH HORMONE

ANSWER: NONE OF THE ABOVE

The gland which secrets epinephrine is ADRENAL MEDULLA OF ADRENAL GLANDS.

Each person has two adrenal glands, one attached to the upper portion of each kidney, each adrenal gland is two endocrine glands in reality with independent functions.

the adrenal medulla at the centre of the gland secretes catecholamines and the outer portion of the gland that is adrenal cortex secretes steroid hormones.

Adrenal Medulla  

The adrenal medulla functions as a part of the autonomic nervous system. stimulation of the preganglionic sympathetic nerve fibre, which travels directly to the cells of the adrenal medulla, causes the release of the catecholamine hormones epinephrine and norepinephrine. 90 %of the hormone that is released by adrenal medulla is epinephrine.

epinephrine regulate metabolic pathways to promote catabolism of the stored fuel to meet caloric needs from endogenous sources.

the major effect of epinephrine release is to prepare to meet a challenge( flight or fight response).

secretion of epinephrine causes decreases blood flow to the tissues that are not needed in the emergency situation such as GI tract and increase blood flow to tissues that are important for effective fight or flight, such as cardiac and the skeletal muscles.

81. ANSWER

The gland which secrets HCG is ANTERIOR PITUITARY GLAND.

ANSWER (a) ANTERIOR PITUITARY GLAND

HUMAN CHORIONIC GONADOTROPIN HORMONE is released by the placenta during pregnancy or after implantation, there are few tests which are used to detect the presence of HCG hormones in the urine, presence of HCG in the urine or blood indicates a positive pregnancy test and also sometimes its presence shows some cancerous cells or tumours.

the pituitary gland of male and female produces HCG hormones regardless of age.

HCG incorporates with the luteinising chorionic gonadotropin hormone of ovaries and helps in the maintenance of corpus luteum, later corpus luteum secretes the hormone progesterone which further helps in the maintenance of pregnancy and the thickening of the uterus and division blood vessels for proper nourishment of the growing fetus.

82. ANSWER

The gland which secretes Thyroid Stimulating Hormone or the thyrotropin is

ANSWER (A) ANTERIOR PITUITARY GLAND

There are 2 MAIN types of thyroid hormones that are

T3( TRIIODOTHYRONINE ) AND T4 ( THYROXINE)

Which is secreted by the thyroid gland which a butterfly-shaped gland present in front of the neck, the thyroid gland is stimulated by the anterior pituitary which further releases thyrotropin from the thyroid gland and its main function is to stimulate body tissues metabolism.

it is the hormone released throughout the lifetime and reaches its maximum during the fast growth of the body and also during stress, also a high amount of HCG during pregnancy causes a condition called gestational hyperthyroidism.

OPTION B THAT IS POSTERIOR PITUITARY SECRETES TWO HORMONES THAT IS ANI DIURETIC HORMONE AND THE OXYTOCIN

OPTION D IS THYROID GLAND WHICH IS REGULATED BY THE ANTERIOR PITUITARY TO RELEASE THYROID HORMONES.