A the cartilage rings keep the airway open b the. 1  5 pages. Exam 3 Answers. Exam 3 Answers -Difference between max cardiac output and resting cardiac output Card. 2  2 pages. Blood hw. Homework#15TheBlood Name:_ 1. Definethefollowingterms: hematocrit erythrocyte hemogl. 3  5 pages. Exam 4 answers.
The most common form of birth defects are congenital heart defects. This article describes the causes, symptoms, and treatments of congenital heart defects. Cleft Lip and Cleft Palate. The 4th most common birth defect is a cleft lip or palate.
what is spina bifida. when the spinal column that surrounds the spinal cord (neural tube) fails to develop normally during the first month of pregnancy result in in an incomplete closure of the neural tube. spina bifida is the most common what. permanently disabling birth defect in US. 1 in every 1000 births.