Question

Name the hormone that is secreted by our body to deal with scary situations. List any two responses shown by our body when this hormone is secreted into the blood.

Answer 1

Adrenaline

Two responses :

(i) It acts on the heart due to which heart beats faster, resulting in the supply of more oxygen to our muscles.

(ii) Ther breathing rate increases because of the contractions of the diaphragm and the rib muscles.

(iii) The blood to the digestive system and skin is reduced due to the contraction of muscles around small arteries in these organs.