Answer:
The states of arousal describe the cycle of sleeping and alertness.
Explanation:
Answer:
The left and right pulmonary veins carry blood to I believe the left atrium.
Answer:
Cause of male infertility are:
- Abnormal sperm production or improper functioning because of undescended testicles
- Genetic conditions like Klinefelter syndrome
- Health problems such as diabetes or infections such as chlamydia, gonorrhea, mumps & HIV
- Enlargement of testes veins also result in low sperm count
Low sperm count symptoms are:
- Problem with sex activity - low sex drive or difficulty in maintaining the erection eg.Erectile dysfunction
- Pain or lump in the testicle area
- Decreased facial or body hair or other symptoms of chromosomal or hormonal disorders
<u>Klinefelter syndrome :</u>
It is a genetic problem in which a male is born with supplemental copy of X chromosome. It usually occurs as a consequence of genetic purposeless error after the conception.
Signs & symptoms include:
- Taller than average stature
- Absent, delayed or incomplete puberty
- Small & firm testicles
- Small penis
- Enlarge breasts ( gynecomastia)
- Long legs, short torso & broader hips in comparison with other teens
Treatment of low sperm count include:
- Surgery: A varicocele can be corrected surgically or vas deferens can be repaired
- Treatment for sexual intercourse problems
- Hormone therapy & medications
- Assisted reproductive technology
- Treating infections
