apex


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apex

 [a´peks] (pl. apexes, a´pices) (L.)
the pointed end of a cone-shaped part. adj., adj ap´ical.
apex of lung the rounded upper extremity of either lung.
root apex the terminal end of the root of the tooth.

a·pex

, gen.

ap·i·cis

, pl.

ap·i·ces

(ā'peks, ap'i-sis, ap'i-sēs), [TA]
The extremity of a conic or pyramidal structure, such as the heart or the lung.
[L. summit or tip]

apex

(a´peks) pl. apexes, a´pices   [L.] tip; the pointed end of a conical part; the top of a body, organ, or part.ap´ical
apex of lung  the rounded upper extremity of either lung.
root apex  the terminal end of the root of the tooth.

apex

[ā′peks] pl. apices
Etymology: L, tip
1 the top, the end, the summit, or the extremity of a structure, such as the apex cordis or the apices of the teeth. apical, adj.
2 pertaining to the end of the root of a tooth.

apex

Any tip of a pyramidal or rounded structure. Tip is widely preferred for external structures (e.g., tip of nose, tip of tongue); apex is more commonly used for internal structures, as in the apex of the lung (the superior-most part of the lung), the heart (the heart formed by the left ventricle, its inferior-most portion) and teeth (the tip of a tooth root).

apex

Latin, summit Any tip of a pyramidal or rounded structure Lung The superior-most part of the lung Heart The heart formed by the left ventricle-its inferior-most portion Teeth The tip of a tooth root

a·pex

, pl. apices (ā'peks, -i-sēz) [TA]
The extremity of a conic or pyramidal structure, such as the heart or the lung.
[L. summit or tip]

apex

The tip of an organ with a pointed end. The apex of the heart is at the lower left side and the apex of the lung is at the top. The tooth apex is at the tip of each root.

a·pex

, pl. apices (ā'peks, -i-sēz) [TA]
The extremity of a conic or pyramidal structure.
[L. summit or tip]

apex,

n 1. the pointed end of a conical structure.
2. the end of the root.
apex blunderbuss,
n an open or everted apex of a tooth, resembling the divergent form of the barrel of a blunderbuss rifle.

apex

pl. apices [L.] the pointed end of a cone-shaped part.
See also apical.

apex beat
see cardiac impulse.
cardiac apex
lies above the last sternebra and close to the sternal part of the diaphragm.
constricted apex
an apical foramen of a tooth is smaller than the adjacent root canal.
dilated apex
an apical foramen of a tooth is wider than the adjacent root canal.
nasal apex
the dorsal crescent of the snout of the pig.
tooth apex
end of a tooth root.
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