Atrium

Atrium
[L. atrium - hall] In the embryo, it is the chamber of the heart that receives blood from the sinus venosus and delivers blood to the ventricle.
Full article >>>

atrium: a thin-walled receiving chamber in which blood accumulates in fishes.
auditory: nerve the nerve within the ear that carries impulses to the brain for interpretation.
Full article >>>

atrium
A chamber in the heart which receives blood from the body.
Covered in:
Lab 14 Gametogenesis and Development
Lab 16 Rat Respiratory and Circulatory Systems
Lab 17 Rat and Frog Comparative Anatomy ...
Full article >>>

atrium pl. atria
(a-tree-um) [L. yard, court, hall]
A chamber that receives blood returning to the vertebrate heart.
Full article >>>

atrium One of the chambers of the heart; also, the tympanic cavity of the ear; also, the large cavity containing the pharynx in tunicates and cephalochordates.
Full article >>>

The atrium receives deoxygenated blood from the blood vessels (veins) that drain the various organs of the body.
The left atrium receives oxygenated blood from the lungs and skin (which also serves as a gas exchange organ in most amphibians).
Full article >>>

The superior and inferior vena cava empty into the right atrium. The coronary sinus which brings blood back from the heart itself also empties into the right atrium.
Full article >>>

Oxygen-depleted or deoxygenated blood from the body enters the right atrium through two great veins, the superior vena cava which drains the upper part of the body and the inferior vena cava that drains the lower part.
Full article >>>

Human heartbeats originate from the sinoatrial node (SA node) near the right atrium. Modified muscle cells contract, sending a signal to other muscle cells in the heart to contract. The signal spreads to the atrioventricular node (AV node).
Full article >>>

(AV valve) Flap of tissue between each atrium and ventricle that moves in response to the pressure changes of ventricular contraction.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
Full article >>>


'"/>