What is Infertility?
NOT being able to get pregnant after one year of
trying without birth control
(Six months, if a woman is 35 or older)
(Women who can get pregnant, but are unable to
stay pregnant may also be included)
Causes in either sex
Genetic factors(disorders in making sperm or eggs)
-Y Chromosome Micro Deletion cause sperm abnormality
- Pituit
Ⅰ. 기관지의 구조
좌측의 길이가 5cm, 직경이 10-14mm, 우측에 비해 경사가 완만하고 우측은 2.5cm의 길이, 12-16mm의 직경으로 경사가 급격하고 좌측보다 넓고 짧다.
1. 1차 기관지
기관의 하단에서 좌우로 갈라지고, 우기관지는 좌기관지에 비해 약간 굵고 수직 각도로 분지한다. 벽 내에 연골이 존재하
of high school and many high school graduates don’t go on college.
The gradual, but major, physical changes do not help to clarify the issue. We’ll deal with adolescent’s physical, psychological and social issue.
Puberty is marked by the sudden enlargement of the reproductive organs and sexual genitalia and the development of secondary sex characteristics.
2. Physical changes in adol