Rhinelander public schools spend $12,836 per student. The average school expenditure in the U.S. is $12,383. There are about 14.9 students per teacher in Rhinelander.
Ductus Deferens. The ductus deferens, also known as the vas deferens, is a tiny muscular tube in the male reproductive system that carries sperm from the epididymis to the ejaculatory duct.he ductus deferens serves dual functions in the male reproductive system: 1  Transporting sperm from the testes to the ejaculatory duct and urethra. 2  Storing sperm until it is ready to be ejaculated.
Medical Definition of ductus arteriosus. : a short broad vessel in the fetus that connects the pulmonary artery with the aorta and conducts most of the blood directly from the right ventricle to the aorta bypassing the lungs.