1. Students correctly color and annotate a diagram of the circulatory system. 2. Students also add âveins, arteries, and capillariesâ to the large body chart using red and blue yarn. 3. Students color a heart diagram and add it to the large body chart.rom the lungs, the blood returns, Blood returns, Blood returns. From the lungs, the blood returns Into the left atrium. From the left atrium, the blood is pumped, Blood is pumped, Blood is pumped. From the left atrium, the blood is pumped Into the left ventricle.
In human anatomy, the eardrum, or tympanic membrane, is a thin, cone-shaped membrane that separates the external ear from the middle ear in humans and other tetrapods. Its function is to transmit sound from the air to the ossicles inside the middle ear, and then to the oval window in the fluid-filled cochlea. Hence, it ultimately converts and amplifies vibration in air to vibration in fluid. The malleus bone bridges the gap between the eardrum and the other ossicles.
Once the sound waves travel into the ear canal, they vibrate the tympanic membrane, commonly called the eardrum. The eardrum is a thin, cone-shaped piece of skin, about 10 millimeters (0.4 inches) wide. It is positioned between the ear canal and the middle ear. The middle ear is connected to the throat via the eustachian tube. Since air from the atmosphere flows in from your outer ear as well as your mouth, the air pressure on both sides of the eardrum remains equal. The eardrum is rigid, and very sensitive.