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(a) Mention the gland and the hormone secreted by it in scary situation in human beings.
(b) Write two responses that enable the human body to be ready to deal with such situation.
(b) Write two responses that enable the human body to be ready to deal with such situation.
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(a) • Adrenal gland (½ Mark)
• Adrenaline (½ Mark)
(b) Responses (any two):
• Adrenaline acts on the heart and makes the heart beats faster to provide oxygen to the muscles.
• The blood supply to skin and digestive system is reduced due to contraction of muscles of arteries to divert the blood through skeletal muscles.
• Breathing rate increases due to contraction of diaphragm and rib muscles. (1 + 1 Marks)
• Adrenaline (½ Mark)
(b) Responses (any two):
• Adrenaline acts on the heart and makes the heart beats faster to provide oxygen to the muscles.
• The blood supply to skin and digestive system is reduced due to contraction of muscles of arteries to divert the blood through skeletal muscles.
• Breathing rate increases due to contraction of diaphragm and rib muscles. (1 + 1 Marks)