Chapter 22

Select the incorrect statement from the following: (a) Neural system provides point to point rapid coordination among organs. (b) Neural coordination is fast. (c) Neural coordination is short-lived. (d) Nerve fibres innervates all the cells of body so cellular function be continuously regulated.

Which system jointly coordinates and regulates the physiological functions in the body? (a) Nervous system (b) Endocrine system (c) Both (a) and (b) (d) Excretory system

Hormonal system is very important because (a) Neural coordination is fast (b) Nerve fibres do not innervate all the cells of body. (c) Neural system provides point to point coordination among organs. (d) Neural coordination is short-lived.

Endocrine glands (a) Are ductless (b) Secrete hormones (c) Pour their secretion in blood (d) All of these

Hormones are (a) Non-nutrient chemicals (b) Intercellular messengers (c) Produced in traces (d) All of these

Select from the following the total number of endocrine glands: Pituitary, pineal, thyroid, parathyroid, adrenal, pancreas, thymus, gonads (a) 7 (b) 8 (c) 6 (d) 5

The following organs produce hormones except (a) GIT (b) Liver and kidney (c) Heart (d) Urinary bladder

Hypothalamus contains several groups of neurosecretory cells called which produce hormones. (a) Ganglion (b) Plexus (c) Nuclei (d) Astrocytes

Hypothalamus is a part of (a) Forebrain (b) Mid-brain (c) Hindbrain (d) None of these

Hypothalamus is (a) Roof of diencephalon (b) Basal part of diencephalon (c) Lateral wall of diencephalon (d) All of these

Hypothalamus directly regulates the endocrine gland. (a) Pituitary (b) Thyroid (c) Thymus (d) Pancreas

Releasing hormones and inhibiting hormones are produced by (a) Pituitary (b) Thyroid (c) Thymus (d) Hypothalamus

Pars distalis produces how many trophic hormones? (a) 4 (b) 5 (c) 6 (d) 8

The following hormones are released by hypothalamus except (a) GnRH (b) Somatostatin (c) \(\mathrm{TSH}-\mathrm{RH}\) (d) PRL

Select the incorrect statement from following: (a) Invertebrates possess very simple endocrine system. (b) Anterior pituitary is under control of hypothalamus by portal system. (c) Posterior pituitary is under direct neural regulation of hypothalamus. (d) Hypothalamus secretes tropic hormones.

Which of the following is incorrect about pituitary? (a) Located in bony cavity called sella turcica. (b) Attached to hypothalamus by stalk. (c) Divided anatomically into adenohypophysis and neurohypophysis. (d) Secretes released and inhibitory hormones.

Adenohypophsyis consists of (a) Pars distalis (b) Pars intermedia (c) Pars nervosa (d) Both (a) and (b)

Neurohypophysis consist of (a) Pars distalis (b) Pars intermedia (c) Pars nervosa (d) All of these

Which is commonly called anterior pituitary? (a) Pars distalis (b) Pars intermedia (c) Pars nervosa (d) All of these

Which is commonly called posterior pituitary? (a) Pars distalis (b) Pars intermedia (c) Pars nervosa (d) All of these

Which of the following hormones are secreted by pars distalis (find out total numbers)? \(G H, P R L, M S H, F S H, L H, T S H, A C T H, A D H\) (a) 4 (b) 5 (c) 6 (d) 8

Pars intermedia secretes (a) Follicle stimulating hormone (b) Melanocyte stimulating hormone (c) Melatonin (d) Prolactin

Posterior pituitary stores and release two hormones (a) Oxytocin (b) Vasopressin (ADH) (c) Growth hormone (d) Both (a) and (b)

Where is oxytocin and ADH synthesized? (a) Ant pituitary (b) Post pituitary (c) Hypothalamus (d) Thalamus

Which of the following hormones regulate the growth of the mammary glands and formation of milk? (a) \(\mathrm{GH}\) (b) TSH (c) Prolactin (PRL) (d) ACTH

Which of the hormone stimulates the synthesis and secretion of thyroid hormone? (a) GH (Growth Hormone) (b) TSH (Thyroid Stimulating Hormone) (c) PRL (Prolactin) (d) ACTH (Adrenocorticotropic Hormone)

Which of the following hormone stimulates the synthesis and secretion of steroid hormones called glucocorticoids from the adrenal cortex? (a) TSH (b) ACTH (c) \(\mathrm{LH}\) (d) \(\mathrm{FSH}\)

stimulates the synthesis and secretion of hormone called androgens from testis. (a) FSH (b) ACTH (c) \(\mathrm{LH}=\mathrm{ICSH}\) (d) GH

induces ovulation of fully mature follicle (Graffian follicles) and maintains the corpus luteum, formed from the remnants of the Graffian follicles after ovulation. (a) FSH (b) ACTH (c) \(\mathrm{LH}\) (d) \(\mathrm{GH}\)

stimulate growth and development of ovarian follicles in females. (a) FSH (b) \(\mathrm{LH}\) (c) \(\mathrm{PRL}\) (d) TSH

Which of the following hormones of anterior pituitary together called gonadotropins? (a) \(\mathrm{LH}\) and \(\mathrm{ACTH}\) (b) FSH and LH (c) TSH and PRL (d) \(\mathrm{MSH}\) and \(\mathrm{LH}\)

Over-secretion of GH (growth hormone) in child leads to (a) Dwarfism (b) Cretinism (c) Gigantism (d) Tetany

Low secretion of \(\mathrm{GH}\) in child leads to (a) Pituitary dwarfism (b) Gigantism (c) Cretinism (d) Tetany

acts on the smooth muscles of our body and stimulate their contraction. (a) \(\mathrm{LH}\) (b) FSH (c) Oxytocin (d) GH

In females \(\quad\) stimulates a vigorous contraction of uterus at the time of child birth. (a) \(\mathrm{LH}\) (b) FSH (c) Oxytocin (d) Relaxin

From which part of nephron ADH stimulates reabsorption of water and electrolyte? (a) PCT (b) \(\mathrm{HL}\) (c) Distal tubules (d) Bowman capsule

Whoch of the following hormone is known as antidiuretic hormone? (a) Oxytocin (b) Prolactin (c) Luteinizing Hormone (d) Vasopressin

Diuresis is reduced by (a) Oxytocin (b) Prolactin (c) Luteinizing hormone (d) Vasopressin

Pineal gland is located on (a) Dorsal side of mid-brain (b) Dorsal side of hindbrain (c) Dorsal side of forebrain (d) Vertical side of forebrain

Pineal gland secretes hormone. (a) \(\mathrm{MSH}\) \(\begin{array}{lll}\text { (b) Melatonin } & \text { (c) FSJ } & \text { (d) Insulin }\end{array}\)

Melatonin influences (a) Metabolism, pigmentation (b) Menstrual cycle (c) Defence capability (d) All of these

24 hour diurnal rhythms of our body is maintained by (a) Melatonin (b) Glucagon (c) Thymosin (d) Oxytocin

Menstruation cycle is affected by the following hormones except (a) Thyroid (b) Melatonin (c) Oestrogen (d) Oxytocin

Thin flap of connective tissue which connects two lobes of thyroid is known as (a) Lobes (b) Ileum (c) Isthmus (d) Ampulla

Which of the following is incorrect about thyroid gland? (a) It is composed of follicles and stromal tissues. (b) It secretes tetraiodothyronine or thyroxine \(\left(\mathrm{T}_{4}\right)\) and triiodothyronine \(\left(\mathrm{T}_{3}\right)\), TCT. (c) It consists of 4 lobes. (d) It is stimulated by the hormone TSH.

Enlargement of thyroid gland is called (a) Hypothyroidism (b) Hyperthyroidism (c) Goitre (d) Isthmusa

Hypothyroidism during pregnancy causes defective development and maturation of growing baby leading to (a) Addison's disease (b) Cretinism (c) Creatinine (d) Tetany

Hypothyroidism is caused by (a) Cancer of thyroid gland (b) Development of nodule of thyroid gland (c) Iodine deficiency (d) Both (a) and (b)

Hypothyroidism causes (a) Irregular menstrual cycle (b) Reduced BMR (c) Reduced production of \(\mathrm{RBC}\) (d) All of these

Thyroid gland secretes (a) \(\mathrm{T}_{3}\) (b) \(\mathrm{T}_{4}\) (c) \(\mathrm{TCT}\) (d) All of these