181 results found

Search Results for: upper

Upper extremities

upper extremity --> upper limb The shoulder, arm, forearm, wrist, and hand. Synonym: membrum superius, superior limb,... Read More

Upper lateral cutaneous nerve of arm

upper lateral cutaneous nerve of arm --> superior lateral brachial cutaneous nerve (Science: anatomy, nerve) The terminal... Read More

Skeletal system

What is the Skeletal System? How to define a skeleton? The skeletal system is the main framework that gives your body its... Read More

Manubrium

The manubrium is a handle-like structure, as in the manubrium of the sternum or of the malleus. In Latin, it translates to... Read More

Alimentary canal

Definition of Alimentary canal What is the alimentary canal? The alimentary canal is a muscular hollow continuous tubular... Read More

Ganglia

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Leaves

Leaves are highly efficient solar energy converters. They capture light energy and through the process of photosynthesis.... Read More

Bronchopulmonary lymph node

Definition noun, plural: bronchopulmonary lymph nodes Any of the many lymph nodes located in the hilum of each lung, and... Read More

Ganglion

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Crown of head

Crown of Head Definition The crown of the head is the upper dorsal part (or area) of the head. Several creatures have... Read More

Arboreal

Arboreal Definition Arbor is a Latin word meaning "tree". Thus, arboreal means "related to or pertaining to trees". The... Read More

Motor neuron

Definition noun, plural: motor neurons A type of neuron connected to a muscle fiber and originates from the central nervous... Read More

Flehmen response

Definition noun A behavior in certain animals wherein the animal curls back the upper lip thereby exposing the front teeth,... Read More

Mesophyll layer

Definition noun, plural: mesophyll layers (botany) The tissue in the interior of a leaf made up of photosynthetic... Read More

Adipose tissue

Adipose Tissue Definition Adipose tissue, a specialized variety of connective tissue, is composed of lipid-rich cells known... Read More

Pharynx

Lined with moist tissue, the pharynx is like a bustling biological highway that directs food and air to their respective... Read More

Anatomy

Anatomy Definition Often we hear the term 'anatomy' while learning about the body and how it works. What is anatomy? What... Read More

Rhinarium

Rhinarium Definition Rhinarium is the hairless (furless) skin area around the external openings of the nostrils in many... Read More

Antecubital fossa

Antecubital Fossa Definition The antecubital fossa or the cubital fossa is the triangular-shaped hollow depression between... Read More

Bryophytes

Bryophytes (nonvascular plants) do not have xylem or phloem. The habitations of this plant group are widely varied and... Read More

Labia

Labia Definition Often, when persons think of the female reproductive system, they think of the vagina. However, the female... Read More

Antagonistic Muscle

Definition of Antagonistic Muscle What does the term “antagonistic” mean? As the name suggests, the word antagonistic... Read More

Primary productivity

Planet Earth is home to different types of life forms ranging from microscopic bacteria to giant whales and elephants. To... Read More

Abdomen

Definition noun (1) The region of the body in between the thorax and the pelvis (2) The part of the body where stomach,... Read More

Abdominal reflex

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

Stoma

Definition noun, plural: stomata (botany) A tiny pore in a plant leaf surrounded by a pair of guard cells that regulate its... Read More

Crocodilia

Definition noun (taxonomy) A taxonomic order that includes the crocodilian species Supplement The order Crocodilia is... Read More

Lacrimal gland

Definition noun, plural: lacrimal glands Either of the two almond-shaped glands in the upper lateral part of the orbit and... Read More

Intermaxillary segment

Intermaxillary segment The primordial mass of tissue formed by the merging of the medial nasal prominences of the embryo; it... Read More

Nasopharynx

Definition noun, plural: nasopharynges or nasopharynxes (anatomy) The part of the pharynx extending from the posterior... Read More

Cranial nerve

Definition noun, plural: cranial nerves Any of the paired nerves emerging from the brain (including the brainstem but not... Read More

Homologous structures

Homologous Structures Definition What are homologous structures? In biology, homologous structures are physical features... Read More

Great Oxygenation Event

Great Oxygenation Event Definition The Great Oxygenation Event is defined as the surge of dioxygen (O2) levels in the... Read More

Silurian

silurian (Science: geology) Of or pertaining to the country of the ancient silures; a term applied to the earliest of the... Read More

Localized peritonitis

Definition noun A type of peritonitis that is confined to a demarcated region of the peritoneal... Read More

Apertura thoracis superior

Apertura thoracis superior --> superior thoracic aperture The upper boundary of the bony thorax composed of the first... Read More

Topographic anatomy

Definition noun The topographic approach in studying anatomy wherein the body is studied based on regions and the relations... Read More

Atrioventricular valve

Definition noun, plural: atrioventricular valves The heart valve between the upper atrium and the lower ventricle, and... Read More

Biosphere

What is biosphere? The biosphere is that part of the Earth where living things thrive and live. It is the portion of the... Read More

Macrophytes

Introduction    Examples of Macrophytes. (Source: Canada's AquaticEnvironments) ... Read More