What to Pack for the San Francisco Weather in July. While most people come packed for warm, sunny days, I recommend coming with a few long sleeved items so you have something to keep you warm as the evenings cool down. For the San Francisco weather in July, I typically wear short sleeved shirts and pants during the day. You could probably bring along some shorts too. Since it's breezy here in July, you will find it a bit too cool most of the time for shorts.
Bone marrow is the soft, flexible connective tissue within bone cavities. A component of the lymphatic system, bone marrow functions primarily to produce blood cells and to store fat. Red marrow contains hematopoietic stem cells that produce two other types of stem cells: myeloid stem cells and lymphoid stem cells. 2  These cells develop into red blood cells, white blood cells, or platelets.
Bone marrow Within the long bones are two types of bone marrow: red marrow and yellow marrow. The yellow marrow has fatty connective tissue and fills the marrow cavity.During starvation, the body uses the fat in yellow marrow for energy. The red marrow of some bones is an important site for blood cell production.one marrow Within the long bones are two types of bone marrow: red marrow and yellow marrow. The yellow marrow has fatty connective tissue and fills the marrow cavity.During starvation, the body uses the fat in yellow marrow for energy. The red marrow of some bones is an important site for blood cell production.