NEET BIOLOGY

Detailed explanation-1: -Labor begins with irregular uterine contractions of varying intensity; they apparently soften (ripen) the cervix, which begins to efface and dilate. As labor progresses, contractions increase in duration, intensity, and frequency.

Detailed explanation-2: -The first stage of labor and birth occurs when you begin to feel persistent contractions. These contractions become stronger, more regular and more frequent over time. They cause the cervix to open (dilate) and soften as well as shorten and thin (efface) to allow your baby to move into the birth canal.

Detailed explanation-3: -The first phase of the first stage of labor is called the latent phase, when contractions are becoming more frequent (usually 5 to 20 minutes apart) and somewhat stronger. However, discomfort is minimal. The cervix dilates (opens approximately three or four centimeters) and effaces (thins out).

Detailed explanation-4: -Your contractions may feel like cramps in your lower stomach and can start off feeling like period pain. You may have dull lower back pain or pain in your inner thigh that you feel down your legs. At first, your contractions will be short and around 30 minutes apart.

Detailed explanation-5: -During active labor, your cervix dilates to about 7 to 8 centimeters. Contractions will be more evenly spaced, intense, and frequent, coming about every three to four minutes apart. Active labor usually lasts from two to three-and-a-half hours (with a wide range of what’s considered normal).