What does spongy bone contain?
What does spongy bone contain?
red bone marrow
Spongy bone consists of plates (trabeculae) and bars of bone adjacent to small, irregular cavities that contain red bone marrow. The canaliculi connect to the adjacent cavities, instead of a central haversian canal, to receive their blood supply.
Does spongy bone have osteocytes?
Like compact bone, spongy bone, also known as cancellous bone, contains osteocytes housed in lacunae, but they are not arranged in concentric circles. Instead, the lacunae and osteocytes are found in a lattice-like network of matrix spikes called trabeculae (singular = trabecula) ((Figure)).
What characteristics does spongy bone have?
Spongy bone is softer and weaker than compact bone, but is also more flexible. It is characterized by a lattice-like matrix network called trabeculae (Latin for little beam) that gives it its spongy appearance.
What is found in compact bone but not spongy?
Compact bone is dense and composed of osteons, while spongy bone is less dense and made up of trabeculae. Blood vessels and nerves enter the bone through the nutrient foramina to nourish and innervate bones.
Does spongy bone contain osteons?
Spongy bone tissue does not contain osteons. Instead, it consists of trabeculae, which are lamellae that are arranged as rods or plates. Red bone marrow is found between the trabuculae. Blood vessels within this tissue deliver nutrients to osteocytes and remove waste.
What are the thin plates in spongy bone?
Trabeculae are thin plates or struts typically associated with spongy bone.
Does spongy bone have lamellae?
Spongy bone tissue does not contain osteons. Instead, it consists of trabeculae, which are lamellae that are arranged as rods or plates.
What are the major differences between spongy bone and compact bone?
Spongy and compact bones are two basic structural bone types….Spongy vs Compact Bones.
| Spongy Bones | Compact Bones |
|---|---|
| They are made up of trabeculae | They are made up of osteons |
| They fill the inner layer of most bones | They fill the outer layer of most bones |
| Bone-marrow cavity absent | Bone-marrow cavity present in the centre |
What is difference between compact bone and spongy bone?
Compact and spongy bone are two types of bones found in the bone tissue. The main difference between compact and spongy bone is that compact bone is the hard outer layers of the bone whereas spongy is the more porous, inner layers of the bone.
Why are there no osteons in spongy bone?
What are osteons made of?
osteon, the chief structural unit of compact (cortical) bone, consisting of concentric bone layers called lamellae, which surround a long hollow passageway, the Haversian canal (named for Clopton Havers, a 17th-century English physician).
How does the structure of compact bone differ from the structure of spongy bone?
Compact and spongy bone differ in structure because the compact bone is tightly packed and has extracellular matrix with no spaces and the spongy bone has holes in there to take the weight away.