Free Coordination and Control MCQs with Answers

• A. Fore brain
• B. Mid brain
• C. Hind brain
• D. Spinal cord

Explanation: The forebrain is the largest region of the brain, containing the entire cerebrum and thalamus, along with other nested structures.

• A. Dyspepsia
• B. Septecemia
• C. Anorexia
• D. Bulimia

Explanation: Bulimia nervosa is an eating disorder in which a person may eat a lot of food at once and then try to get rid of the food by vomiting…

• A. Blood Glucose
• B. Blood Ammonia
• C. Blood 𝑝H
• D. Blood flow

Explanation: Baroreceptors are mechanoreceptors located in blood vessels near the heart that provide the brain with information about blood volume and…

• A. Pons
• B. Mid brain
• C. Cerebellum
• D. Medulla

Explanation: The Medulla oblongata is the posterior portion of the brain. Special reflexes such as heart beat, respiratory movement, salivary…

• A. Paccinian's corpuscles
• B. Mechanoreceptors
• C. Merkel disks
• D. Both B and C

Explanation: Merkel disks are touch receptors. Receptors for touch and pressure are also called Mechanoreceptors. Thus, option D is the correct answer.

• A. Prolactin
• B. IH
• C. FSH
• D. Oxytocin

Explanation: Oxytocin is the hormone released by the posterior pituitary that stimulates the contraction of uterine(during labor) and mammary gland…

• A. Oxytocin - posterior pituitary - growth and maintenance of mammary glands
• B. Melatonin - ­pineal gland - regulates the normal rhythm of sleep wake cycle.
• C. Progesterone - corpus luteum- stimulation of growth and activities of female secondary sex organs
• D. Atrial natriuretic factor - atrial wall - increases the blood pressure

Explanation: Oxytocin is produced by the hypothalamus and generally secreted by the posterior pituitary.

• A. Cancer of the thyroid gland
• B. Oversecretion of pars distali
• C. Deficiency of iodine in diet
• D. Low secretion of growth hormone

Explanation: Iodine is needed for the synthesis of T3 and T4. Iodine binds to the tyrosine residues in thyroglobulin, which is then hydrolysed into…

• A. Adrenocorticotropic hormone
• B. Insulin and glucagon
• C. Epinephrine and nor-epinephrine
• D. Aldosterone

Explanation: Based on the explanations provided, the correct answer to the question is option C) Epinephrine and nor-epinephrine.

• A. Nociceptors respond to changes in pressure
• B. Meissner's corpuscles are thermoreceptors
• C. Photoreceptors in the human eye are depolarised during darkness and become hyperpolarised in response to the light stimulus
• D. Receptors do not produce graded potentials.

Explanation: Photoreceptors in the human eye are unique because they are the only type of sensory cells that are relatively depolarised (about -35mV)…

• A. Only rods are present
• B. More rods than cones are found
• C. High density of cones occur, but has no rods
• D. Equal number of rods and cones

Explanation: A small oval, yellowish area of the retina lying exactly opposite to the centre of the cornea is named the macula lutea or yellow spot…

• A. Retinal is the light absorbing portion of visual photo pigments.
• B. In the retina, the rods have the photopigment rhodopsin while cones have three different photopigments.
• C. Retinal is a derivative of vitamin C
• D. Rhodopsin is the purplish red protein present in rods only

Explanation: The retinal pigment is an aldehyde of vitamin A.

• A. Glutamic acid
• B. Acetylcholine
• C. Gamma aminobutyric acid (GABA)
• D. Dopamine

Explanation: Alzheimer's disease is a neurological disease characterized by progressive loss of intellectual ability.

• A. Neurolemma is discontinuous
• B. Myelin sheath is discontinuous
• C. Both neurilemma and myelin sheath are discontinuous.
• D. It is covered by the myelin sheath

Explanation: At the level of the node of Ranvier, the myelin sheath is discontinuous but not the neurilemma lining.

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

Explanation: Interstitial cells (or Leydig 's cells) are the cells interspersed between the seminiferous tubules of the testis.

• A. Glucagon is secreted by the b-­cells of islets of Langerhans and stimulates glycogenolysis.
• B. Secretion of thymosins is stimulated with aging
• C. In females, FSH first binds with specific receptors on ovarian cell membrane
• D. FSH stimulates the secretion of estrogen and progesterone.

Explanation: Hormone action involves their reception by target cells. Specific proteins called hormone receptors that are located in target tissues…

• A. Cortisone
• B. Cortisol
• C. Corticosterone
• D. 11­deoxycorticosterone

Explanation: Adrenal glands or (suprarenal glands) are two triangular endocrine glands, each of which covers the superior surface of a kidney.

• A. Endocrine glands regulate the neural activity but not vice versa
• B. Neurons regulate endocrine activity, but not vice versa
• C. Endocrine glands regulate neural activity, and nervous system regulates endocrine glands.
• D. Neither hormones control neural activity nor the neurons control endocrine activity

Explanation: The endocrine system links the brain to the organs that control body metabolism, growth and development, and reproduction.

• A. Chemoreceptors
• B. Photoreceptors
• C. Mechanorcceptors
• D. Thermoreceptors

Explanation: Mechanoreceptors are in the skin and on other organs that detect sensations of touch.

• A. Microglia
• B. Oligodendrocytes
• C. Astrocytes
• D. Schwann's cell

Explanation: Some cells are attached with the neurons, along the length of axon that are specialized for the production of myclim sheath; these are…