It is somewhat flattened, considerably narrower than the gastric surface, and is in relation with the upper part of the anterior surface of the left kidney and occasionally with the left adrenal gland. Like the thymus, the spleen possesses only efferent lymphatic vessels. The spleen is part of the lymphatic system. Both the short gastric arteries and the splenic artery supply it with blood. The germinal centers are supplied by arterioles called penicilliary radicles.
It depends on how well your baby is sleeping at night. Some babies confuse their days and nights â sleeping more during the day than at night. One way to set your baby straight is to limit daytime naps â especially those in the late afternoon â to no more than three or four hours each. If your baby is napping for too long at the end of the day, it can make it harder for him or her to fall asleep at bedtime.
Your baby needs about three hours of sleep in the day until he's about nine months. Most babies have a longer nap in the morning and a shorter one in the afternoon. Between nine months and 12 months, your baby's naps will reduce to about two and a half hours in total a day.f you wait too long, your baby will be too tired, and have a harder time falling asleep. Learn how to read your baby's signals. He may rub his eyes, or fuss a lot, or just stare into space. The moment your baby tells you he's tired, put him down for some sleep.