The hypothalamus produces corticotropin-releasing hormone (CRH) that stimulates the pituitary gland to secrete adrenocorticotropin hormone (ACTH). ACTH then stimulates the adrenal glands to make and release cortisol hormones into the blood.
A short term stress response is controlled by adrenaline (epinephrine) and noradrenaline (norepinephrine). When an organism interacts with a stressful situation, these two hormones are released by the adrenal medulla...
1. Describe the actions of our immune response.a) Skin It acts as a mechanical barrier and prevents the entry of microbes into the body. Intact skin prevents the penetration by most pathogens. The...
Reproductive hormones are usually made in the ovaries (in females) and testes (in males). Female reproductive hormones include estrogen and progesterone. They help develop and maintain female sex characteristics and...
While positive feedback does exist, negative feedback in the endocrine system is much more common. The negative feedback process is sometimes compared to a home heating system, where the temperature...
The baroreceptors are the pressure sensors which respond to the changes in the blood pressure. The baroreceptors are located in the aortic arch and carotid sinus. Carotid sinus has abundance...
Short-term regulation of blood pressure is controlled by the autonomic nervous system. Changes in blood pressure are detected by baroreceptors. These are located in the arch of the aorta and...
Ecdysis is the process of an arthropod moulting its exoskeleton. Moulting is necessary as the arthropod exoskeleton is inflexible and so, to grow larger, arthropods must moult. Once the new...
Corrosion will occur at the bent portion of the nail and at the head and point of the nail (nails are formed from a wire by applying stress). ... The zinc...
