Free Coordination and Control MCQs with Answers

• A. Progesterone
• B. Estrogen
• C. Cortisol
• D. Testosterone

Explanation: Corpus luteum produces the hormone progestrone, which develops the endometrium.

• A. Competition
• B. Feedback mechanism
• C. Inhibition
• D. Antagonizing

Explanation: Hormones often regulate each other through feedback mechanisms. Feedback can be either positive (enhancing hormone release) or negative…

• A. Diseased adrenal medulla
• B. Diseased pancreas
• C. Diseased adrenal cortex
• D. Diseased thymus

Explanation: The active uptake of sodium in the ascending limb or thick loop of Henle is promoted by the action of aldosterone, the hormone secreted by…

• A. Ovary
• B. Uterus
• C. Pituitary gland
• D. Placenta

Explanation: A chorionic gonadotropin hormone (CG or hCG) is primarily secreted by the placenta during pregnancy.

• A. Thyroid
• B. Adrenal medulla
• C. Thymus
• D. Adrenal cortex

Explanation: Adrenal cortex secretes the androgen hormone. Androgens cause development of the secondary male characteristics.

• A. Testis
• B. Sub-maxillary
• C. Ovary
• D. Parathyroid

Explanation: Sub-maxillary also called submandibular glands are located in the oral cavity and the major duct in these is the Wharton duct, they…

• A. FSH
• B. LH
• C. Progesterone
• D. STH

Explanation: Estrogen secretion is primarily under the control of Follicle-stimulating hormone (FSH), which is a hormone produced by the pituitary…

• A. ADH
• B. Oxytocin
• C. Thyroxin
• D. MSH

Explanation: Oxytocin is a hormone that is secreted in response to distension of the cervix during childbirth.

• A. Vasopressin
• B. Thyroxine
• C. Insulin
• D. Progesterone

Explanation: A lack of Vasopressin (also called ADH) produce diabetes insipidus, characterized by production of large quantities of dilute urine and…

• A. Steroids
• B. Tyrosine derivatives
• C. Polypeptides
• D. Amino acids

Explanation: LH and ICSH are glycoprotein hormones, which means they are composed of both protein and carbohydrate components.

• A. Hypothalamus
• B. Pituitary gland
• C. Adrenal cortex
• D. Adrenal medulla

Explanation: Addison's disease is caused by the excess secretion of MSH. Since the Adrenal medulla does not control the inhibition of its secretion, it…

• A. Glucose
• B. Secretin
• C. Gastrin
• D. Bile

Explanation: Secretin is a hormone that is released from the small intestine in response to the presence of acidic chyme (partially digested food)…

• A. Norepinephrine
• B. Cortisol
• C. Epinephrine
• D. Glucagon

Explanation: Epinephrine (adrenaline) is released in stress situation it dilates blood vessels in certain parts of the body such as the skeletal…

• A. Dendrite
• B. Cell body
• C. Axon
• D. Ganglion

Explanation: Dendrites are branch-like structures extending from the cell body of a neuron.

• A. Sensory
• B. Associative
• C. Motor
• D. Unipolar

Explanation: Relay neurons are responsible for relaying signals between sensory neurons and motor neurons or between other interneurons.

• A. Nerve cells
• B. Non-myelinated nerve fibers
• C. Myelinated nerve fibers
• D. Connective

Explanation: White matter in the CNS is primarily composed of myelinated nerve fibers.

• A. Detect irritability
• B. Responsiveness
• C. Sensitivity
• D. All A, B, C

Explanation: Nervous tissue is responsible for detecting irritability, responsiveness, and sensitivity in the body.

• A. Skin
• B. Hypothalamus
• C. Adrenal Gland
• D. Pituitary

Explanation: Hypothalamus regulates the changes in body temperarue so, is called the thermoregulatory center.

• A. Skeletal muscles
• B. Cardiac muscles
• C. Smooth muscles
• D. All A, B, C

Explanation: Different neurons have different jobs. For example, sensory neurons send information from the eyes, ears, nose, tongue, and skin to the…

• A. Mechanoreceptors
• B. Chemoreceptors
• C. Photoreceptors
• D. Pressure receptors

Explanation: The chemoreceptors in the hypothalamus are sensitive to changes in the levels of carbon dioxide, oxygen, and pH in the blood.