In geometry, an apex (plural apices) is the vertex which is in some sense the “highest” of the figure to which it belongs. The term is typically used to refer to the vertex opposite from some “base”. The word is derived from the Latin for ‘summit, peak, tip, top, extreme end’.
What is the apex of a cell?
Apical membrane, in cell biology the surface of a plasma membrane that faces inward to the lumen.
What is the apex for?
An apex is the highest point (relative to the base of a figure) of certain 2D and 3D figures. More specifically, the term apex is usually used to refer to the highest vertex opposite the base of a geometric figure.
What is an example of apex?
The definition of apex is the highest part of something. The peak of a mountain is an example of its apex. (UK, trade union) Association of Professional, Executive, Clerical and Computer Staff.
What part of the body is apex?
ApexThe apex is the pointed tip of the heart. It is located on the lower portion of the heart (left ventricle).
What is the apex of an organ?
the tip or summit of an organ; for example the heart or lung.
What is an apex tag?
The tag, called Apex, is a 28 kDa peroxidise that can withstand the processes needed to fix electron microscopy samples for imaging, doesn’t require an external light source to emit its signal, and is active in any cell compartment, unlike horse radish peroxidise, which isn’t active in the cytosol.
What is apical layer?
The apical surface of epithelial cells, which lines the lumen of sac- and tube-shaped organs and the inner surfaces of the body cavities, forms the interface between the extracellular milieu and underlying tissues.
What is apical meristem?
Apical meristems are specialized zones of growth found at the tips of plants. These are responsible for the extension of shoots and roots and are also responsible for the primary plant body.
What is common word for apex?
Some common synonyms of apex are acme, climax, culmination, peak, pinnacle, and summit. While all these words mean “the highest point attained or attainable,” apex implies the point where all ascending lines converge.
What is apex in lungs?
Anatomically, the lung has an apex, three borders, and three surfaces. The apex lies above the first rib. The three borders include the anterior, posterior, and inferior borders. The anterior border of the lung corresponds to the pleural reflection, and it creates a cardiac notch in the left lung.
What is apex in leaf?
The leaf apex is a protruding part of a leaf where water droplets accumulate, and droplet separation occurs during drainage.
STRUCTURE OF THE HEART The heart weighs about 300 g and is located within the mediastinum; it is cone-shaped and tilted forward and to the left. Because of rotation during fetal development, the apex of the heart (tip of the cone) is at its bottom and lies left of the midline.
What does apex mean in text?
Meaning. APEX. All-Purpose Excuse 🙂 showing only Slang/Internet Slang definitions (show all 46 definitions)
How class is defined in apex?
- Access modifiers:
- Optional definition modifiers (such as virtual , abstract , and so on)
- Required: The keyword class followed by the name of the class.
- Optional extensions and/or implementations.
Where is the apex and base of heart?
The apex (the most inferior, anterior, and lateral part as the heart lies in situ) is located on the midclavicular line, in the fifth intercostal space. It is formed by the left ventricle. The base of the heart, the posterior part, is formed by both atria, but mainly the left.
How do you find the apex of the heart?
The normal apex is located in the fifth intercostal space, in the midclavicular line. In order to locate it, place the flat of your hand just below the nipple in both males and females (figure 46).
Where does the apex of the heart rest?
The inferior tip of the heart, known as the apex, rests just superior to the diaphragm. The base of the heart is located along the body’s midline with the apex pointing toward the left side.
Which word origin means apex?
apex (n.) “the tip, point, or summit” of anything, c. 1600, from Latin apex “summit, peak, tip, top, extreme end;” probably related to apere “to fasten, fix,” hence “the tip of anything” (one of the meanings in Latin was “small rod at the top of the flamen’s cap”), from PIE *ap- (1) “to take, reach” (see apt).
What is a club in Apex?
What are Apex Legends Clubs? Clubs are social groups that let players squad up together without adding strangers to your friends list or using external Looking for Group (LFG) tools. They’re player-created and maintained. Your Club can be exclusive, open, or searched for in-game depending on your Club’s settings.
How do you promote someone on Apex?
Is apical outside or inside?
Epithelial cells have two different “sides”—apical and basolateral. The apical side always faces out of the body (outside or into a lumen). There is a small amount, or an absence of, extracellular matrix. They are avascular (meaning, they don’t have blood vessels) and get their nutrients via diffusion.
Is epithelial tissue apical?
Epithelia cells are polarized with an apical surface that faces the lumen of a tube or the external environment and a basal surface that attaches to the basement membrane. The apical and basal surfaces perform different functions and have unique biochemical compositions. Epithelial cells are continuously renewed.
What is apical and basal surface?
The bottom edge of the epithelial tissue next to the basement membrane is the basal surface. In contrast, the edge of the epithelial tissue facing the lumen or the external environment is called the apical surface.
Why is it called apical meristem?
The apical meristem is a type of meristematic tissue that occurs at the terminal parts of the plant such as root tips and shoot apex.