Mechanism of Hormone Action by Extracellular and Intracellular receptors

Mechanism of Hormone Action by Extracellular and Intracellular receptors

Hormones are biochemical messengers produced by glands in the endocrine system and secreted into the bloodstream to regulate various physiological processes in the body. They play a crucial role in maintaining homeostasis and influencing a wide range of functions, including: Hormones exert their effects by binding to specific receptors on target cells, initiating a cascade … Read more

Ovaries – Definition, Structure, Hormones, Functions

What is Ovary? Definition of Ovary The ovary is a reproductive organ in females that produces eggs and secretes hormones like estrogen and progesterone, essential for regulating the menstrual cycle and fertility. Anatomy of the Ovary The ovary is a crucial organ in the female reproductive system, responsible for producing eggs and secreting hormones essential … Read more

Insect Nervous System – Structure and functions

Insect Nervous System

The insect nervous system is a complex and highly organized network that facilitates a wide array of functions crucial for the survival and adaptation of insects. It comprises two primary components: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of a dorsal brain and a ventral chain of segmental … Read more

Insect Plant Interaction – Theory of co-evolution, role of allelochemicals

Insect Plant Interaction

What is Insect Plant Interaction? What are the main types of interactions between insects and plants? Insect-plant interactions are essential components of ecological dynamics, influencing biodiversity, ecosystem functioning, and agricultural productivity. These interactions can be categorized into three primary types: antagonism, commensalism, and mutualism. Each type encompasses specific relationships characterized by distinct functional roles and … Read more

Taste – Organs, Receptor, Mechanisms, Central Taste Pathways, Neural Coding

Taste - Organs, Receptor, Mechanisms, Central Taste Pathways, Neural Coding

What is Taste? The Organs of Taste The organs of taste are essential in helping humans detect and differentiate between various flavors. While the tongue is the primary organ associated with taste, other areas such as the palate, pharynx, and epiglottis also play a role in the tasting process. Additionally, odors from food contribute to … Read more

The Structure of the Nervous System – Gross Organization, Development, Features

Structure of the Nervous System

The nervous system represents one of the most intricate and essential systems in multicellular organisms, functioning as the primary coordinator of actions, sensory information, and responses to environmental stimuli. This complex network is responsible for detecting changes in the environment, processing that information, and enabling organisms to react accordingly, working closely with the endocrine system … Read more

Neurotransmitters – Definition, Types, Mechanism, Functions

Two Distinct Types of Neurotransmitter Receptors

What are Neurotransmitters? Definition of Neurotransmitters Neurotransmitters are chemical messengers that transmit signals between neurons or from neurons to other target cells, such as muscle or gland cells, across synapses, helping regulate various functions in the nervous system. Properties of Neurotransmitter Below are key properties that define neurotransmitters and their role in neural communication. Types … Read more

Synapse – Definition, Structure, Principles, Types & Function

Synapse - Definition, Parts, Types & Function

What is Synapse? Definition of Synapse A synapse is a junction between two neurons or between a neuron and an effector cell, such as a muscle cell, that allows for the transmission of electrical or chemical signals. It consists of a presynaptic terminal, a synaptic cleft, and a postsynaptic terminal, facilitating communication within the nervous … Read more

Action Potential – Definition, Properties, Generation, Mechanism, Conduction

Action Potential - Definition, Properties, Mechanism

What is Action Potential? Definition of action potential An action potential is defined as a rapid, transient change in the electrical membrane potential of a neuron, characterized by a brief depolarization followed by repolarization. This process allows neurons to transmit signals over long distances. It occurs when the membrane potential reaches a critical threshold, leading … Read more

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