Circulation: Human Body Systems

Tiny air sacs in the lungs that allow oxygen and carbon dioxide exchange

Two tubes connecting lungs and trachea

Tube that connects larynx to lungs

The lymphatic organ  that produces T cells (T lymphocytes)

The passage from the mouth to the larynx and esophagus

The lymphatic fluid contains dead blood cells and pathogens

The area  of the throat that contains the vocal cords and produces vocal sounds

A collection of organs whose primary function is to take in oxygen and expel carbon dioxide

A tiny blood vessel that allows exchange of oxygen and nutrients between blood and other tissue

A blood vessel that carries blood away from the heart

tiny air sacs of the lungs where oxygen and carbon dioxide are exchanged

The exchange of oxygen and carbon dioxide between living cells and their environment

Collection of organs that collect fluid that contains dead blood cells and pathogens

The flow of blood from the heart to the lungs and back again

The largest lymphatic organ which stores and produces lymphocytes

The flow of blood from theheart to the body and back again

A blood vessel that carries blood toward from the heart

The lymphatic organs found along lymphatic vessels especially in neck, armpits and groin

the tube connecting larynx and lungs

Collection of organs that takes in oxygen and releases carbon dioxide

Tube that connects mouth to  larynx  and esophagus

The lymphatic tissue located in pharynx; inflammation of these may cause a sore throat