Definition: Lacrimation refers to the physiological process in which tears are secreted and released from the lacrimal glands. Subtitles: Lacrimal Glands: The lacrimal glands are responsible for producing tears and are located on the upper outer corner of each eye. Tear Composition: Tears are primarily composed of water, electrolytes, proteins, lipids, and mucins. These components […]
Definition: The Lacrimal Sac is a small, pear-shaped pouch that collects tears from the surface of the eye. It is located in the lacrimal fossa, which is a depression in the inner wall of the orbit. Structure and Location: The Lacrimal Sac is situated between the inner corner of the eye, known as the medial
Lacrimal Reflex: The lacrimal reflex is an involuntary physiological response that leads to the production and release of tears by the lacrimal glands. This reflex helps to protect and lubricate the eyes in response to certain stimuli or irritants. Function: The lacrimal reflex serves several important functions: Protection: Tears produced during the lacrimal reflex help
Lacrimal Ducts Definition: The lacrimal ducts, also known as tear ducts, are narrow passages located in the corner of each eye responsible for draining tears from the surface of the eyes into the nasal cavity. Anatomy: The lacrimal ducts consist of a series of interconnected tubular structures involved in the drainage of tears. They begin
Lacrimal Bone The lacrimal bone, also known as the os lacrimale, is a small, rectangular bone located in the skull’s facial skeleton. It is one of the paired bones that form the inner walls of the orbit (eye socket) and contribute to the formation of the tear duct system. Anatomy The lacrimal bone is situated
Labyrinthitis Labyrinthitis is an inflammatory disorder that affects the inner ear, specifically the labyrinth. It is characterized by symptoms such as vertigo (a spinning sensation), hearing loss, and ringing in the ears (tinnitus). Labyrinthitis can be caused by viral or bacterial infections, head injuries, allergies, or certain medications. Causes Labyrinthitis can be caused by various
Labyrinthine Sense Definition The labyrinthine sense, also known as the sense of balance or proprioception, refers to an individual’s ability to perceive the position, orientation, and movement of their body in relation to gravity and their surroundings. Labyrinthine Sense Function The labyrinthine sense relies on the vestibular system, located in the inner ear, which houses
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Definition: Laboratory observation refers to a scientific method of data collection in which experiments and studies are conducted within a controlled laboratory setting. It involves observing and recording various phenomena, behaviors, or processes in a controlled environment to gather empirical evidence and draw conclusions. Components of Laboratory Observation: Controlled environment: Laboratory observation takes place in
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Labile Mood: Description: A labile mood refers to emotional instability or erratic fluctuations in a person’s mood, characterized by rapid and unpredictable shifts in emotional state. Individuals experiencing labile mood may easily transition from being excessively happy or euphoric to suddenly becoming sad, angry, or irritable without any apparent reason or trigger. Symptoms: Emotional volatility,
Labile Affect: Labile affect refers to an individual’s emotional state or mood that changes rapidly and unpredictably. It is characterized by frequent and intense shifts in emotions, often without any apparent reason or external trigger. Key Features: Quick and unpredictable changes in emotional expression Emotions may switch between extremes, such as laughter to tears Lack
