Atrium
Either of the two upper chambers of the heart that receive blood returning from circulation.
14 body parts containing the letter U — each with origin, classification, and notes.
Below are body parts that contain the letter U anywhere in the name. Each of the 14 body parts below opens to a full profile.
Either of the two upper chambers of the heart that receive blood returning from circulation.
A pair of spongy organs in the thoracic cavity responsible for gas exchange between air and blood.
The oral cavity, the entry point of the digestive tract where food is taken in, chewed, and mixed with saliva.
A short, large vessel that carries deoxygenated blood from the right ventricle to the lungs.
One of two long bones of the forearm, located on the thumb side and rotating around the ulna.
The final straight section of the large intestine that stores fecal material before elimination.
The shoulder blade, a flat triangular bone that connects the humerus to the clavicle and supports shoulder motion.
The bony framework of the head that protects the brain and forms the structure of the face.
The breastbone, a flat bone in the middle of the chest that anchors the ribs and protects the heart and great vessels.
A muscular organ in the mouth that handles food during chewing and swallowing and supports taste and speech.
One of two long bones of the forearm, located on the little finger side and forming the main hinge with the humerus at the elbow.
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