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Bone Marrow – Definition, Types, Structure and Functions

Bone Marrow - Definition, Types, Structure and Functions

What is Bone Marrow? Definition of Bone Marrow Bone marrow is the soft tissue found within the cavities of bones that produces various types of blood cells, including red blood cells, white blood cells, and platelets. Location of Bone Marrow The location of bone marrow within the human body is widely distributed, but it undergoes changes … Read more

ELISA test – Definition, Principle, Procedure, Types, Steps, Uses

ELISA test

What is ELISA test ? Definition of ELISA ELISA, short for Enzyme-Linked Immunosorbent Assay, is a widely used laboratory technique that detects and measures the presence of specific antibodies or antigens in a sample. It involves the binding of target molecules (antibodies or antigens) to a solid surface, followed by the addition of enzymes or … Read more

Gonadal hormones – Secretion, Functions, Mechanism, Regulation

Gonadal hormones - Secretion, Functions, Mechanism, Regulation

What is Gonad? Origin of Gonads Structure and Location of Gonads 1. Ovaries 2. Testes Gonadal hormones Female Gonad Hormones Female gonad hormones play a crucial role in the reproductive system and the development of female characteristics. The two major hormones produced by the ovaries are progesterone and estrogens. Overall, estrogens and progesterone are essential … Read more

Skeletal System – Definition, Types, Anatomy, Functions

Skeletal System - Definition, Types, Anatomy, Functions

What is Skeletal system? Definition of Skeletal system The skeletal system is the framework of bones, joints, and cartilages that provides support, protection, and facilitates movement in the human body. Types of Skeletal Systems There are three main types of skeletal systems found in different organisms: hydrostatic skeleton, exoskeleton, and endoskeleton. Each type of skeletal … Read more

Hypothalamus – Definition, Structure, Functions

Hypothalamus

What is Hypothalamus? Definition of Hypothalamus The hypothalamus is a small region of the brain located below the thalamus. It serves as a crucial link between the nervous system and the endocrine system, regulating various metabolic processes and controlling activities such as body temperature, hunger, thirst, sleep, and emotional behavior. Embryological development of the hypothalamus … Read more

Signal Transduction Pathway – Definition, Types, Functions, Examples

Signal Transduction Pathway - Definition, Types, Functions, Examples

What is a Signal Transduction Pathway? Definition of Signal Transduction Pathway A signal transduction pathway is a series of molecular events inside a cell that converts an external signal into a specific cellular response. Components of signal transduction Signal transduction involves several key components that are common in both plants and animals. These components include: … Read more

Hormone – Definition, Structure, Types, Functions, Examples

Hormone - Definition, Structure, Types, Functions, Examples

What is Hormone? Endocrine Glands and Their Major Hormones Endocrine gland Associated hormones Chemical class Effect Pituitary (anterior) Growth hormone (GH) Peptide Promotes growth of body tissues Pituitary (anterior) Prolactin (PRL) Peptide Promotes milk production Pituitary (anterior) Thyroid-stimulating hormone (TSH) Peptide Stimulates thyroid hormone release Pituitary (anterior) Adrenocorticotropic hormone (ACTH) Peptide Stimulates hormone release by … Read more

Endocrine System – Definition, Classification, Functions and Endocrine glands

Endocrine System - Definition, Classification, Functions and Endocrine glands

What is Endocrine System? Definition of Endocrine System The endocrine system is a network of glands that release hormones into the bloodstream to regulate various functions and maintain balance within the body. Structure of Endocrine System Development of Endocrine Gland Classification of Endocrine Glands The classification of endocrine glands can be based on different criteria, … Read more

Characteristics of Muscle Twitch – Motor Unit, Summation and Tetanus

Characteristics of Muscle Twitch - Motor Unit, Summation and Tetanus

Muscle twitch, the brief and transient contraction of a muscle fiber, is a fundamental event in muscle physiology. Understanding the characteristics of muscle twitches provides insights into the intricate mechanisms that govern muscle function. This article delves into the key aspects of muscle twitch, focusing on motor units, summation, and tetanus. Muscle twitches are initiated … Read more

Ultra structure of skeletal muscle – Definition, Functions

Ultra structure of skeletal muscle - Definition, Functions

What is skeletal muscle? Definition of skeletal muscle Skeletal muscle is a type of voluntary muscle tissue that is attached to the bones and responsible for movement and various bodily functions. Properties Of Skeletal Muscle Skeletal muscles possess several important properties that contribute to their function and enable them to perform various tasks: These properties … Read more

Reflex Action – Definition, Types, Mechanism & Examples

Reflex Action - Definition, Types, Mechanism & Examples

What is Reflex Action? Definition of Reflex Action Reflex action is an automatic and rapid response to a stimulus that occurs without conscious control or thought. It involves the activation of sensory neurons, interneurons, and motor neurons to produce a quick and stereotyped response, often for the purpose of self-preservation or protection. Types of reflex … Read more

Neuromuscular Junction – Definition, Structure, Steps, Significance

Neuromuscular Junction - Definition, Structure, Steps, Significance

What is Neuromuscular junction? Definition of Neuromuscular junction A neuromuscular junction is a specialized connection between a motor neuron and a muscle fiber, where signals from the nervous system are transmitted to the muscle, resulting in muscle contraction. Structure of a Neuromuscular Junction The structure of Neuromuscular junction can be broadly divided into three parts: … Read more

Synapse – Definition, Parts, Types & Function

Synapse - Definition, Parts, Types & Function

What is Synapse? Definition of Synapse A synapse is a junction or connection between two neurons or a neuron and a target cell, allowing the transmission of electrical or chemical signals. Synapse and Neurotransmitters Synapses and neurotransmitters play a crucial role in neuronal communication. Neurotransmitters are chemicals that are released from neurons in response to … Read more

How Neurons Communicate – Resting membrane potential

How Neurons Communicate - Resting membrane potential

The nervous system relies on neurons to carry out various functions, ranging from basic motor reflexes to complex processes such as memory formation and decision-making. Unlike human communication through words and body language, neurons communicate through electrical and chemical signals. Similar to a committee member, a single neuron typically integrates and processes information from multiple … Read more

Neuron – Definition, Structure, Types, Functions

Neuron - Definition, Structure, Types, Functions

What is Neuron? Definition of Neuron A neuron is a specialized cell in the nervous system that receives, processes, and transmits information through electrical and chemical signals. How Do Neurons Work? Neurons are the basic functional units of the nervous system, responsible for transmitting nerve impulses and facilitating communication between different parts of the body. … Read more

Nervous System – Definition, Parts, Functions

Nervous System - Definition, Parts, Functions

What is Nervous System? Definition of Nervous System The nervous system is a complex network of cells and tissues that coordinates and regulates the activities of an organism by transmitting electrical signals between different parts of the body. Cells of the Nervous System Neurones Glial Cells Astrocytes Oligodendrocytes Microglia Ependymal cells Nervous System Structure and … Read more

Normal Human Microbiota Definition, Types, Advantages and Disadvantages.

Normal Flora of Hman Body

From shortly after birth to death, the skin and mucous membranes are home to a diverse microbial fauna. The average human body contains 1013 cells and harbors 1014 bacteria. This is the normal microbial population. The normal microbial fauna is stable. During certain times in a person’s life, specific genera may populate different body regions. … Read more

Agglutination test definition, Types, Uses, Advantages, Disadvantages

Agglutination test

In this article we will learn about Agglutination test definition, Types, Uses, Advantages, Disadvantages, Aim of Agglutination Test, Specimen collection, application of Agglutination test and finally Examples of Agglutination test. Agglutination Test Agglutination Test is a clinical assay used for the detection of Antibody or Antigen in body fluids such as saliva, urine, cerebrospinal fluid, … Read more

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