Endocrine and Exocrine Glands

This is the correct option. Endocrine glands are glands of the endocrine system that secrete their products, hormones directly into the blood rather than through a duct.

Yes, it is the correct answer. A mammary gland is an organ in female mammals that produces milk to feed young offspring. Mammals get their name from the word mammary. In humans, the mammary glands are situated in the breasts. In ruminants such as cows, goats, and deer, the mammary glands are contained in the udders. These are exocrine glands.

This is the correct option as all the above statements are correct

The adrenal gland controls the stress hormones cortisol and epinephrine. The stress hormones act by mobilizing energy from storage to muscles, increasing heart rate, blood pressure and breathing rate and shutting down metabolic processes such as digestion, reproduction, growth and immunity.

Goiter is the abnormal enlargement of the thyroid gland caused by iodine deficiency, which leads to insufficient thyroid hormone production. The thyroid gland attempts to compensate by growing larger. The adrenal cortex, adrenal medulla, and pituitary gland are not affected by goiter.

Endocrine glands lack ducts and release hormones directly into capillaries - which are venous microvessels. From there, hormones enter general circulation via veins. Arterial blood carries hormones away from heart to tissues, but glands don't secrete into arteries directly.

Mikulicz disease is characterised by the abnormal enlargement of the salivary and lacrimal glands.

Brown adipocytes contain numerous smaller droplets and a much higher number of mitochondria, which make them brown. They are abundant in newborns and hibernating mammals.

Meibomian, Lachrymal, and Glands of Moll are associated with the eye. The Ceruminous gland is found in the ear canal and produces earwax.

The thymus gland is crucial for the immune system as it's where T-lymphocytes mature and differentiate. It produces lymphocytes and is involved in antibody production. The hypothalamus regulates hormones, adrenals produce adrenaline and cortisol, and thyroid regulates metabolism.

Gull's disease results from thyroid dysfunction, causing myxedema with characteristic skin swelling and mental slowing. The thyroid gland regulates metabolism through hormone secretion, and its failure produces these symptoms. Other endocrine glands (pituitary, adrenal cortex, gonads) cause distinct disorders when dysfunctional.

The pineal gland secretes melatonin, the hormone that regulates circadian rhythms (sleep-wake cycles), earning it the name 'biological clock'. Melatonin production increases in darkness and decreases in light, synchronising our internal body clock with the external day-night cycle. The adrenal gland secretes cortisol and catecholamines (stress response), pituitary is the 'master gland' controlling other endocrine glands, and thyroid regulates metabolism - none are the biological clock.

The pancreas produces insulin in special cells called beta cells of the islets of Langerhans. Insulin regulates blood sugar levels. The pituitary gland is the 'master gland' that controls other glands, pineal regulates sleep cycles, and adrenal produces stress hormones like cortisol.

The pituitary gland is called the 'master gland' because it controls other endocrine glands through hormone secretion. Pineal regulates sleep, adrenal produces stress hormones, and pancreas produces insulin - but they're controlled by pituitary signals.