Quiz: Exams 2023

1- The most common route of spread of papillary thyroid carcinoma is:

A A. Direct B B. Transcoelomic C C. Blood D D. Lymphatic

2- The etiology of Hashimoto's thyroiditis is......

A A. There is increased TSH stimulation B B. Hypoplasia of follicles C C. Viral infection D D. Autoimmune type IV hypersensitivity

3- Bone pain and osteoporosis are caused by.....

A A. Toxic goiter B B. Craniopharyngioma C C. Parathyroid adenoma D D. Neuroblastoma

4- As regarding neuroblastoma, which is correct?

A A.Malignant spindle cell tumor B B. Malignant small round cells affecting 6th decade C C. Capsulated tumor of parathyroid gland D D. Fleshy hemorrhagic necrotic cut surface

5-Commenest cause of thyrotoxicosi

A A. Multinodular goiter B B. hashimoto's thyroiditis C C graves's disease D D. thyroid carcinoma

6-Water deprivation test is diagnostic only for:

A A.DI B B.DM C C.SIADA D D.PHAEOCHROMCYTOMA

7-Weight loss is a feature of:

A A.hypothyroidism B B.Adrenal insufficiency C C.Cushing syndrome D D.Polycystic ovary syndrome

8. Regarding thyroid gland, which of the following is not true?

A A.Highly vascular organ B B.Consists of right and left lobes connected by isthmus C C.Apex of thyroid lobe is related to oesophagus D D.Each lobe is pear in shape

9. Inferior parathyroid glands arise from which of the following.

A A. First pharyngeal pouch B B. Third pharyngeal pouch C C. Second pharyngeal cleft D D. Fourth pharyngeal pouch

10. Regarding the pancreas, the following are true except.

A A. The transverse mesocolon is attached to its anterior border. B B.Has main pancreatic duct and sometimes another accessory duct C C.Portal vein begins at level of neck of pancreas D D.Superior mesenteric artery descends anterior to uncinate process.

11. What structure lies posterior to the suprarenal glands.

A A. Stomach B B.Liver C C. Diaphragm D D. pancrease

12-Gigantism should be treated by the following:

A A.GH B B.Prolactin inhibitors C C.thyroxine D E.octreotide

13-The following are used in male and female infertility:

A A-human chorionic gonadotropin. B B-Human menopausal gonadotropin C C-estrogen D E e- a+b

14- Oxytocin is contraindicated in the following:

A A-induction of labor B B-incomplete abortion C C-post partum hemorrhage D D-contracted pelvis

15- Insulin is not given orally because:

A A-it is gastric irritant. B B-it is destroyed by gastric pepsin C C-it is destroyed by first pass effect. D D- it is acid sensitive

16-The following is/are antihyperglycemic drug:

A A-sulfonylureas B B-biguanides. C C-thiazolidinedione derivatives. D D-glucagon

17-Hyperthyroidism is treated by the following drug to prevent sympathomimetic manifestations:

A A.antithyroid drugs B B-propranolol C C-adrenaline D D-verapamil

18-Aldostrone secretion is increased by:

A A-Administration of inhibitors of angiotensin converting enzyme. B B- Increase plasma Na level C C-Decrease plasma volume D D- Decrease plasma K level

19- All the following hormones are very important for growth except

A A-Insulin B B-ADH C C-Growth hormone D D-Thyroxin

20-The following hormone increase Na excretion in the kidney

A A-Aldosterone B B-Cortisol C C- Angiotensin II D D-Atrial natriuretic peptide

21-Growth hormone decreases

A A-Blood glucose B B-Lipolysis C C-Protein synthesis D D- The uptake of glucose by the cells

22-Calcitonin hormone:

A A- Is a calcium raising hormone B B- Increases calcium excretion in urine. C C-Increases calcium absorption from intestine D D- Increases calcium reabsorption in kidney.

23-The following is a lipogenic hormone (increase protein synthesis)

A A-Insulin B B- Calcitonin C C-Growth hormone D D-Thyroxin

24-Thyroid hormones

A A-Decrease metabolic activity in all body tissues B B-Decrease breakdown of lipids C C-Is very important for brain development in early childhood D D-Have no effect on skeletal growth

25-Parathormone hormone increases blood calcium level by

A A-Inhibiting osteoclastic activity B B.increasing calcium excretion C C-Increasing calcium absorption from intestine D D.decreasing calcium reabsorption from kidney

26-Metabolic functions of cortisol include

A A-Decreasing affinity of insulin receptors to insulin B B-stimulating protein synthesis C C-Inhibition of gluconeogenesis in liver D D-Stimulating glucose uptake by muscle cells

27-Thyrocalcitonin

A A-Is produced by thyroid gland B B-Increase basal metabolic rate C C-Increase plasma calcium D D-Stimulate osteoclastic activity

28-The hypothalamus controls the secretion of all the following except

A A-Thyroid stimulating hormone B B-Somatomedins C C-Adrenocortical hormone D D-Follicular stimulating hormone

29- Which is TRUE about the normal thyroid gland:

A A.Poor in blood supply. B B. Parafollicular cells are smaller than thyrocytes C C.The colloid contain T3 & T4 D D. Help in the regulation of blood calcium.

30- As regard islets of Langerhans which is false?

A A. They are composed of protein secreting cells B B. They are more numerous in the tail of the pancreas C C.The cells are separated by a network of continuous blood capillaries D D.They are composed of beta, alpha, delta. PP and C cells

31- The cells secrete androgen in which of the following layers:

A A.Zona fasiculata B B.Adrenal medulla C C. Zona reticularis D D.Zona glomerulosa

32-Pituicytes are found in:

A A.Pars distalis. B B.Pars intermedia C C.Pars nervosa D D.Pars tuberalis.

33. All the following compounds listed below may act as second messengers, except:

A A. Cyclic AMP B B. 2.3-bisphosphoglycerol C C. Calcium ions D D. Inositol triphosphate

34- All the following hormones have membrane receptors, except:

A A. Insulin B B. Epinephrine C C. Glucagon D D. Thyroxine

35. All the hormones listed below act at the level of transcription, except:

A A. Cortisol B B. Calcitrio 1 C C. Calcitonin D D. Androgen

36. One of the following is not a glycoprotein:

A A. Hcg B B. TSH C C. GnRH D D. FSH

37. All of the following are causes of hypothyroidism except:

A A. Hashimoto's disease B B. TSH deficiency C C. Grave's disease D D. Severe iodine deficiency

38. All of the following are clinical features of hyperthyroidism except:

A A. Weight loss B B. Palpitation C C. Constipation D D. Heat intolerance

39. All the following compounds listed below may act as second messengers, except: