Q44 of 61 Page 62

Answer the following :

(a) Name the endocrine gland associated with brain?


(b) Which gland secretes digestive enzymes as well as hormones?


(c) Name the endocrine gland associated with kidneys?


(d) Which endocrine gland is present in males but not in females?

(a) Pituitary: Hypothalamus gland present in brain releases hormones that regulate the secretion of pituitary glands.


(b) Pancreas: It is a digestive gland as well as it secretes the pancreatic juice for digestion of food. It also secretes hormones as insulin.


(c) Adrenal: Adrenal glands are located on the top of two kidneys.


(d) Testes: These are the glands which are present only in males and secretes male sex hormone, testosterone.


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What happens at the synapse between two neurons?

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Answer the following:

(a) Which hormone is responsible for the changes noticed in females at puberty?


(b) Dwarfism results due to deficiency of which hormone?


(c) Blood sugar level rises due to deficiency of which hormone?


(d) Iodine is necessary for the synthesis of which hormone?


(e) Name the endocrine gland associated with brain?


(f) Which gland secretes digestive enzymes as well as hormones?


(g) Name the endocrine gland associated with kidneys?


(h) Which endocrine gland is present in males but not in females?

 45

Draw the structure of a neuron and explain its function.

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What are the major parts of the brain? Mention the functions of different parts.