Search Results for: autonomic_nervous_system
Nervous tissue
Nervous Tissue Definition Nerve cells (or neurons) and their associated cells, such as neuroglia cells, make up nervous... Read More
Peripheral nervous system
Definition noun The part of the nervous system that relays between the central nervous system and the rest of the body,... Read More
The Central Nervous System
Myelin Sheath Myelin is a substance that forms the myelin sheath associated with nerve cells. This sheath is a layer of... Read More
Involuntary muscle
A muscle act typically either under the control of the will or without conscious control. Muscles that can be controlled at... Read More
Afferent Nerve
Afferent Nerve Definition The word ‘aferent’ means "steering or conducting something towards a destination". The... Read More
Somatic nervous system
Definition noun The part of the peripheral nervous system that consists of afferent nerves responsible in relaying motor... Read More
Nervous system
Definition noun The organ system responsible mainly for coordination of bodily reactions, organ monitoring, and information... Read More
Neural Control Mechanisms
Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More
Sympathetic nervous system
Definition noun A division of the (vertebrate) autonomic nervous system that is chiefly involved in producing an immediate... Read More
Parasympathetic nervous system
Definition noun A division of the (vertebrate) autonomic nervous system whose physiological effects are mostly in opposition... Read More
Human Neurology
Human Neurology deals essentially with the nervous system of humans. It also features the various theories put forward by... Read More
Diaphoresis
What is Diaphoresis? Diaphoresis is referred to excessive or profuse perspiration or sweating which may be due to... Read More
Myocardium
Myocardium Definition What is the myocardium of the heart? It is the muscular middle layer of the heart that is... Read More
Hypothalamus
Definition noun, plural: hypothalami A small region of the forebrain comprised of several small nuclei, located between the... Read More
Voluntary muscle
Definition noun, plural: voluntary muscles A muscle that can be controlled voluntarily Supplement Some of the muscles of the... Read More
Circulation
Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More
Fight or flight reaction
Definition noun The response or reaction of an animal to a situation perceived as a threat to its survival, which involves... Read More
Hypothalamic theory
Definition noun A theory on emotion formulated by Walter Cannon in 1929 which states that the diencephalon, consisting of... Read More
Digestion and Absorption of Food
The gastrointestinal (GI) system includes the gastrointestinal tract (mouth, pharynx, esophagus, stomach, small intestine,... Read More
Integumentary system
Integumentary System Definition The integumentary system is the outermost layer of the body. The animal body, in... Read More
Fundamentals of Anatomy & Physiology (7th Ed) by F.H. Martini
Fundamentals of Anatomy & Physiology (7th Edition) ... Read More
Sensory Systems
A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal and... Read More
Chronobiology
Chronobiology Definition Chronobiology is a branch of biology that studies time-related phenomena (e.g., biological... Read More
Principles of Hormonal Control Systems
Hormones are chemical messengers that enter the blood directly upon their secretion from endocrine glands. A single gland or... Read More
Peritoneum
What is the Peritoneum? The term peritoneum refers to the serous membrane that constitutes the biologically active inner... Read More