Agonists Select one: a. block the action of hormones and neurotransmitters b. is the principle brain region in control of a behaviour c. all of these d. mimic hormones and neurotransmitters e. harm their target

Q: Heroin mimics the actions of endorphins, inhibiting pain signals and creating a “high” feeling.…

A: Introduction: Heroin is made from morphine which is a highly potent pain killer that occurs…

Q: Each of the following contributes to the unidirectional propagation of nerve signals EXCEPT_ A)…

A: If too many mistake are introduced in the chromosomes during DNA replication, the cell will not…

Q: How do brainstem upper motor neurons regulate movement? a. This system utilizes a central pattern…

A: The term Upper motor neurons (UMNs) was given by William Gowers in 1886. It exists in the cerebral…

Q: Which of the following statements correctly describes the all-or-none principle? a. A neuron…

A: In humans, the nervous system contains two main parts: the central nervous system (CNS) and the…

Q: The autonomic nervous system deals with aspects of our bodies we do not control-the involuntary…

A: The autonomous nervous system is part of the complex nervous system involved in the involuntary…

Q: Glutamate is Select one: a. All of these b. often synthesized from glial-synthesized glutamine c.…

A: The human body comprises several coordinated mechanisms to maintain the functionality of the body.…

Q: Response to a stimulus within the central nervous system differs from that of a reflex arc because…

A: There are changes in the internal as well as the external environment of an organism and these…

Q: The endogenous ligand for an ion channel causes the influx of 50 Na+ ions per second. This ion…

A: antagonist:A ligand that binds to a receptor and changes the receptor's state to cause a biological…

Q: Catecholamine (Epinephrine)-blockers are often used as a treatment to dilate blood vessels and…

A: Hypertension happens due to the constriction of the blood vessels. This is treated by the usage of…

Q: People with amygdala damage have trouble recognizing expressions of fear. If you wanted to help such…

A: The amygdala also called corpus amygdaloideum is located near the base of the brain and contains a…

Immune Disorders

The collaboration between the cells and proteins that work together as a defense system against infection comprises the immune system.Each of them performs a variety of tasks to recognize and/or react against a foreign body.