Human Physiology

The visual system consists of a sensory organ (the eye) and components of the central nervous system (the retina, which contains photoreceptor cells, the optic nerve, the optic tract, and the visual cortex), and it provides organisms with the sense of sight (the ability to detect and process visible light) as well as the ability […]

Introduction Hyperactivity disorder is a condition in which a person is unusually or abnormally active. People who work with hyperactive people, such as teachers, employers and parents, often find it challenging to handle. Because of your illness and how others react, you may become anxious or depressed if you have hyperactivity. The following characteristics characterise

Human nervous system is responsible for guiding nearly everything we think, feel, say, or do. Also, it controls the complex processes such as memory, thought, and movement, and things your body does without speculating, like when you blush, blink, or breathe.  The human nervous system influences every characteristic of your life (health) that includes:  

The human brain is in charge of almost every aspect of the human body, from physiological functions to cognitive capacities. It works by receiving and delivering impulses to various parts of the body via neurons. The human brain has the same basic structure as most other mammals, although it is more evolved than any other

There is one simple type of neural activity in which a stimulus results in an immediate action. This is a reflex action. Marshall Hall, a 19th-century English neurologist, coined the term reflex (from Latin reflexus, “reflection”) to describe how muscles reflect a stimulus in the same way that a wall reflects a ball thrown against

One of the fundamental regulatory mechanisms in the body is homeostasis, which maintains a stable constant internal environment irrespective of the changes in the external environment. The steady-state process helps the animal organ systems respond favourably to internal and external changes and maintain dynamic equilibrium. It is crucial to understand homeostasis’s meaning, its regulation, and

Neurotransmitters are generally referred to as the body’s chemical messengers. These are the molecules which are used by the nervous system to transfer messages between neurons, or either from neurons to muscles. Synaptic cleft is the region where communication between two neurons occurs, in the (the small gap between the synapses of neurons). Here, electrical

A neuron represents a nerve cell which is the basic building block of the nervous system. Neurons are very similar to other cells that are present in the human body in different numbers of ways, but there is only one key difference between neurons and other cells. Neurons possess the ability to transmit information throughout

Introduction The process through which two or more organs interact and complement the functions of one another is termed as coordination. The neural system and the endocrine system coordinates and integrates all activities of the body so that they function in a synchronized fashion. While the neural system provides an organized network of point-to-point connections

Introduction The nervous system is a collection of cells that carry electrochemical inputs from sensory receptors to the location where a reaction is generated. In human beings, neural control and coordination guide everyday activities such as waking up, automatic activities such as movement, balance, and breathing, and complex processes such as thinking, feeling emotions etc.