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Multiple Choice
Where is fat stored in long bones?
A
In the periosteum
B
In the red bone marrow
C
In the yellow bone marrow
D
In the compact bone
Verified step by step guidance
1
Understand the structure of long bones: Long bones consist of several parts including the periosteum, compact bone, and bone marrow. Each part has distinct functions and characteristics.
Identify the types of bone marrow: Bone marrow is found within the cavities of bones and exists in two types - red bone marrow and yellow bone marrow. Red bone marrow is involved in hematopoiesis (production of blood cells), while yellow bone marrow primarily stores fat.
Locate the yellow bone marrow: In adults, yellow bone marrow is found in the medullary cavity of long bones. It is composed mainly of adipocytes (fat cells) and serves as an energy reserve.
Differentiate between the periosteum and compact bone: The periosteum is a dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints. Compact bone is the dense outer layer that provides strength and structure to the bone.
Conclude the storage location: Based on the understanding of bone anatomy, fat is stored in the yellow bone marrow, which is located in the medullary cavity of long bones.