24 results found

Search Results for: reflexes

Abdominal reflex

Definition noun, plural: abdominal reflexes Abdominal wall muscle contraction of the umbilicus toward the abdominal quadrant... Read More

Digestion and Absorption of Food

The gastrointestinal (GI) system includes the gastrointestinal tract (mouth, pharynx, esophagus, stomach, small intestine,... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

Reflex

Definition noun, plural: reflexes (physiology) An innate, immediate involuntary action to a stimulus without prior conscious... Read More

Respiration

Organization of the Respiratory System Each lung is composed of air sacs called alveoli - the sites of gas exchange with... Read More

Regulation of Organic Metabolism, Growth and Energy Balance

Organic Metabolism Events of Absorptive and Post-absorptive States. The absorptive state is the period during which... Read More

Pupillary light reflex

Definition noun, plural: pupillary light reflexes A reflex marked by the constriction of the pupil in response to the... Read More

Stretch reflex

Definition noun A reflex contraction of a muscle when the muscle proprioceptors (e.g. muscle spindles) are... Read More

Peristalsis

What is Peristalsis? Peristalsis is the series of involuntary, wave-like muscle movements in the cylindrical, hollow tube... Read More

Accommodation reflex

Definition noun, plural: accommodation reflexes A reflex reaction of the eye in response to focusing on near object followed... Read More

Patellar reflex

Definition noun, plural: patellar reflexes A stretch reflex wherein the anterior muscles of the thigh contracts by reflex as... Read More

Achilles reflex

Definition noun, plural: Achilles reflexes A stretch reflex wherein the foot jerks towards the plantar surface by reflex as... Read More

Kidneys and Regulation of Water and Inorganic Ions

Renal Functions Kidneys remove/add substances from/to the plasma. Regulate water concentration, inorganic ion... Read More

Control of Body Movement

Motor Control Hierarchy A motor program is the pattern of neural activities required to perform a movement is created and... Read More

Homeostatic Mechanisms and Cellular Communication

Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory... Read More

Unconditioned stimulus

An unconditioned stimulus inherently triggers an automatic response, not reliant on deliberate prior learning. In contrast... Read More

Skin

Definition noun, plural: skins (anatomy) The external membranous integument of the body; the outer protective covering of... Read More

Tectum

Definition noun, plural: tectums, tecta A roof-like covering or structure Supplement Tectum is a term used to describe a... Read More

Scratch reflex

Definition noun, plural: scratch reflexes (1) A spinal reflex characterized by a response to the activation of sensory... Read More

Afferent Nerve

Afferent Nerve Definition The word ‘aferent’ means "steering or conducting something towards a destination". The... Read More

Gag reflex

Definition noun, plural: gag reflexes A reflex contraction characterized by retching or gagging when a foreign body comes in... Read More

Release phenomenon

release phenomenon The increased tonus and hyperirritability of muscle-stretch reflexes which occur following damage of the... Read More

Knee

Knee 1. In man, the joint in the middle part of the leg. 2. (Science: anatomy) The joint, or region of the joint, between... Read More

Jaw jerk reflex

Definition noun A stretch reflex that manifests as the contraction of the masseter and the temporalis muscles in response to... Read More