Free Coordination and Control MCQs with Answers

• A. 7
• B. 10
• C. 5
• D. 9

Explanation: Vagus nerve is the tenth cranial nerve. It arises from the side of medulla oblongata.

• A. By both the SNS and the PNS involuntarily
• B. By the para­sympathetic nervous system involuntarily
• C. By the sympathetic nervous system involuntarily
• D. By the sympathetic nervous system voluntarily

Explanation: The blood is supplied into visceral organs by both SNS (sympathetic nervous system) and PNS (parasympathetic nervous system)…

• A. Simple reflexes
• B. Conditioned reflexes
• C. Cardiac reflexes
• D. Origin of life.

Explanation: By training, a particular response can be obtained to a stimulus other than the one which normally evokes that response.

• A. Pupil
• B. Iris
• C. Cornea
• D. lens

Explanation: In the question, you are asked about the structure that controls the entry of light into the eye.

• A. optic disc
• B. periphery
• C. macula lutea
• D. fovea centralis

Explanation: A small area of the optical part of the retina lying exactly opposite to the centre of the cornea is called the macula lutea, or yellow…

• A. Move lens forward and backward
• B. Refract light rays
• C. Bring about movements of eye lids
• D. Alter the size of the pupil.

Explanation: At the junction of the sclera and the cornea, the vascular coat sharply bends into the cavity of the eyeball to form a thin, coloured…

• A. Sclerotic
• B. Choroid
• C. Choroid and retina
• D. Sclerotic and choroid.

Explanation: At the junction of the sclera and the cornea, the vascular coat sharply bends into the cavity of the eyeball to form a thin, coloured…

• A. 10th
• B. 9th
• C. 7th
• D. 12th

Explanation: The hypoglossal nerve is the twelfth paired cranial nerve. Its name is derived from ancient Greek, 'hypo' meaning under, and 'glossal'…

• A. Metacoel
• B. Rhinocoel
• C. Paracoel
• D. Diacoel

Explanation: The ventricles consist of four hollow, fluid-filled spaces inside the brain. The third ventricle is also known as diacoel.

• A. Cranial Nerve X
• B. Cranial Nerve IX
• C. Cranial Nerve VIII
• D. Cranial Nerve VII

Explanation: The vagus nerve is one of the nerves responsible for controlling your heart rate.

• A. Anterior pituitary gland and stimulates secretion of LH and FSH
• B. Posterior pituitary gland and stimulates secretion of oxytocin and FSH
• C. Posterior pituitary gland and stimulates secretion of LH and relaxin
• D. Anterior pituitary gland and stimulates secretion of LH and oxytocin.

Explanation: Gonadotropin releasing hormone (GnRH) is secreted by the hypothalamus which stimulates the anterior lobe of pituitary gland to secrete…

• A. Insulin
• B. Glucagon
• C. Secretin
• D. Gastrin

Explanation: Insulin is a peptide hormone, secreted by the b cells of the islets of Langerhans in the pancreas, that promotes the uptake of glucose by…

• A. Estrogen and progesterone
• B. Cortisol and cortisone
• C. Melatonin and serotonin
• D. Thyroxine and triiodothyronine

Explanation: Tryptophan is an essential amino acid which is the precursor for the synthesis of melatonin and serotonin.

• A. Insulin
• B. Glucagon
• C. Cortisone
• D. Aldosterone

Explanation: Aldosterone (saltretaining hormone) is the principal mineralocorticoid in humans, secreted by adrenal cortex.

• A. Prolactin
• B. Melanocyte stimulating hormone
• C. Antidiuretic hormone
• D. Luteinising hormone

Explanation: Two hormones, i.e oxytocin (OT) and antidiuretic hormone (ADH) are synthesised in the hypothalamus, but stored and released by the…

• A. C­ - Medulla­ - inner zone of the kidney containing complete nephrons
• B. D ­- Cortex ­- outer part of kidney that does not contain any part of nephrons
• C. A ­- Adrenal gland ­- located at the anterior part of the kidney. Secretes catecholamines which stimulate glycogen breakdown.
• D. B ­- Pelvis -­ broad funnel-shaped space inner to the hilum, directly connected to the loops of Henle.

Explanation: In the given figure, A is an adrenal gland which secretes two catecholamines: adrenaline (epinephrine) and noradrenaline (norepinephrine).

• A. Non­-nutrient chemicals produced by the body in trace amounts that act as intercellular messengers are known as hormones.
• B. Inhibitory hormones are produced by the pituitary gland.
• C. Adenohypophysis is under direct neural regulation of the hypothalamus.
• D. Organs in the body like the gastrointestinal tract,heart,kidney and liver do not produce any hormones.

Explanation: Releasing and inhibiting factors are released by the hypothalamus. The hypothalamus is connected to adenohypophysis by hypophysial portal…

• A. Insulin, glucagon
• B. Thyroxine, insulin
• C. Somatostatin,oxytocin
• D. Cortisol,testosterone

Explanation: Steroid hormones such as cortisol, testosterone, estradiol and progesterone, mostly regulate gene expression or chromosome function by the…

• A. OPTION A
• B. OPTION B
• C. OPTION C
• D. OPTION D

Explanation: The posterior lobe of the pituitary stores and releases two hormones called oxytocin and vasopressin.

• A. Calcitonin
• B. Prolactin
• C. Adrenaline
• D. Melatonin

Explanation: Melatonin is a hormone secreted by the pineal gland and retinas of vertebrates.