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.
If your baby is taking long chunky naps (1.5+ hours at each nap) then they may be getting sufficient daytime sleep to be done with the 3rd nap as early as 6 months. However for most people, their babies still need the 3rd nap until closer to 9 or even 12 months. So the general rule is: Long nappers drop the 3rd nap earlier. Short nappers will stick with the 3rd nap longer. As your baby gets older the 3rd nap may be a short 10 minutes or even a simple drowse while nursing.