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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

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

Sensory Receptors – Definition, Types, Mechanism, Functions

Sensory Receptors - Definition, Types, Mechanism, Functions

What is Sensory Receptor? Definition of Sensory Receptor A sensory receptor is a structure or specialized cell that detects and responds to physical stimuli in the environment, both internally and externally. It converts these stimuli into electrical signals that are transmitted to the central nervous system for processing and perception. How Sensory Systems Work? Classification … Read more

Cranial Nerves in Mammals – Definition, Types, Structure, Functions

Cranial Nerves in Mammals - Definition, Types, Structure, Functions

What is Cranial nerve? Definition of Cranial nerve Cranial nerves are a set of twelve pairs of nerves that emerge directly from the brain and are responsible for controlling various functions in the head, neck, and some organs in the chest and abdomen. These nerves transmit sensory information, such as sight, hearing, taste, and touch, … Read more

Human Brain – Definition, Structure, Characteristics, Functions

Human Brain - Definition, Structure, Characteristics, Functions

What is Human Brain? Definition of Brain The brain is the central organ of the human nervous system, responsible for processing information, controlling bodily functions, and facilitating cognition, emotions, and behaviors. Characterisitcs Features of Human Brain The human brain possesses several characteristic features that contribute to its complexity and functionality. Here are some key characteristics … Read more

Autonomic nervous system – Definition, Structure, Functions

Autonomic nervous system - Definition, Structure, Functions

What is Autonomic nervous system? Definition of Autonomic nervous system The autonomic nervous system (ANS) is a division of the nervous system responsible for regulating involuntary bodily functions such as heart rate, digestion, respiration, and sexual arousal. It consists of the sympathetic, parasympathetic, and enteric divisions, which work together to maintain homeostasis and respond to … Read more

Urinary System – Definition, Anatomy and Physiology

Urinary System - Definition, Anatomy and Physiology

What is Urinary System? Definition of Urinary System The urinary system is a collection of organs, including the kidneys, ureters, bladder, and urethra, that work together to eliminate waste from the body, regulate fluid balance, and maintain the chemical stability of the body. Anatomy of the Urinary System Two kidneys, two ureters, a urinary bladder, … Read more

Ossification (Bone Growth and Development) – Definition, Steps, Importance

Ossification (Bone Growth and Development) - Definition, Steps, Importance

What is Ossification? Definition of Ossification Ossification, also known as osteogenesis, is the process of bone formation, where mesenchymal cells differentiate into osteoblasts that lay down new bone tissue. There are two types of ossification: intramembranous, which directly converts mesenchymal tissue into bone, and endochondral, which involves the transformation of mesenchymal tissue into a cartilage … Read more

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