What is a adrenal gland and also explane thymut and parathyroip gland

adrenal glands : our body has a pair of adrenal glands on the top of each kidney. it secretes two hotmones called adrenaline and nor-adrenaline in response to stress and any kind of emergency situation. thus these are called emergency hormone or flight or fight hormones.

thymus gland : this gland is located on dorsal side of heart and arota, it is a lobular structure. it secretes peptide hormones called Thymosins which help in differentiation of T-lymphocytes and thus provide cell mediated immunity. 

 

parathyroid gland : present on back of thyroid gland. it secretes the peptide hormone called Prathyroid hormone. it increases calcium(Ca²⁺) levels in the blood and acts on bones and srtimulates bone restoration.

ADRENAL GLAND : IT IS MADE UP OF  MODIFIED NEUROECTODERMAL CELLS IT SECRETES TWO HORMONES NAMELY ADRENALINE AND NONADRENALINE  THEY ARE TOGETHER CALLED THE EMERGENCY HORMONES ,HORMONES OF FIGHT, FLIGHT, FRIGHT AS THEY RAPIDLY MOBILIZE THE BODY TO FACE AN EMERGENCY SITUATION  OR STRESS

 FUNCTIONS 

*INCREASE THE HEART BEAT

 *INCREASES THE ALERTNESS 

*  INCREASES RESIRATORY RATE

*DIALATION OF PUPIL 

*CAUSE PROFUSE SWEATING

 THYMUS GLAND:

IT IS A LYMPHOID MASS PRESENT  ABOVE THE HEART . IT SECRETES  THYMOSIN HORMONE  WHICH STIMULATES  THE DIFFERENTIATION OF THE T LYMPHOCYTES TO RESIST INFECTION

THIS GLAND IS FOUND WITHIN THE THYROID GLAND  AND PRODUCE A HORMONE CALLED PARATHORMONE AND CALCITONIN WHICH MAINTAIN CALCIUM AND METABOLISM