Biology
Fill in the blanks with the correct alternative :
(i) Thyroid is located close to …………… (larynx/kidney).
(ii) Cretinism is caused due to …………… of thyroxin. (undersecretion/oversecretion)
(iii) Over-secretion of thyroxin causes …………… goitre. (simple/exophthalmic)
(iv) The condition showing swelling in face and hands and sluggishness due to hypothyroidism is called …………… (cretinism/myxoedema).
(v) The hormone concerned with facing dangers is …………… (thyroxine/cortisone/adrenaline).
(vi) Cortex and medulla are the two regions of …………… (thyroid/adrenal).
(vii) One of the effects of increased secretion of adrenaline is …………… . (Dry mouth / slowing of heart beat / arterioles of the digestive system dilate)
Answer
(i) Thyroid is located close to larynx.
(ii) Cretinism is caused due to undersecretion of thyroxin.
(iii) Over-secretion of thyroxin causes exophthalmic goitre.
(iv) The condition showing swelling in face and hands and sluggishness due to hypothyroidism is called myxoedema.
(v) The hormone concerned with facing dangers is adrenaline.
(vi) Cortex and medulla are the two regions adrenal.
(vii) One of the effects of increased secretion of adrenaline is Dry mouth.
Related Questions
Name the two categories of hormones secreted by adrenal cortex.
List any two effects of adrenaline.
Mention if the following statements are true (T) or false (F). If false, rewrite the correct word (not words) striking out the single wrong one.
(i) Pituitary is of the size of a lemon.
(ii) Pituitary has three lobes — anterior, posterior and intermediate.
(iii) Oversecretion of growth hormone in adult causes gigantism.
(iv) Vasopressin secreted by anterior lobe controls reabsorption of water form kidney tubules.
Write the full forms of:
(i) TSH
(ii) LH
(iii) ACTH
(iv) ADH