bio lab Flashcards
(22 cards)
functions of bon tissues ?
Support
Protection
Movement
Mineral homeostasis
Hemopoiesis: blood cell formation
Storage of adipose tissue: yellow marrow
who maintains the bone tissue ?
osteocyte
who forms the bone matrix ?
osteoblast
who resorbs bone ?
osteoclast
wdym by periosteum ?
a layer of dense connective tissue that covers the surface of a bone and provides attachment for muscles, tendons, and ligaments.
The outer layer of the periosteum contains wt ?
a large number of blood vessels;
the inner layer contains wt ?
osteoblasts and fewer blood vessels
Where does bone get its blood supply?
The internal layer of the cortex receives blood from the marrow or medullary cavity existing at the bone’s center.
The external layer (or outer shell) of the cortex receives blood from the periosteum.
The matrix is solid and clear, chondrocytes are arranged either singly or in groups.
Hyaline cartilage
The single or group of chondrocytes lies in a clear capsule or lacuna
hyaline cartilage
Has a fibrous membrane at the periphery of the cartilage known as perichondrium. Collagen fibers form an imperceptible network.
hyaline
hyaline cartilage function
Supports and reinforces; has resilient cushioning properties;
resists compressive stress.
Hyaline cartilage
location
Cartilage in the embryo, covers the ends of long bones in joint cavities, forms costal cartilages of the ribs; cartilages of the nose, trachea, and larynx.
cartilages of the nose, trachea, and larynx.
hyaline cartilage
where are chondrocytes stored ?
lacuna
The matrix is rich in yellow elastic fibres.
Elastic cartilage
Function of elastic cartilage
Maintains the shape of a structure while allowing great flexibility
Location of elastic cartilage
Supports the external ear (the ear-pinna); epiglottis
The matrix is rich in white collagenous fibers.
fibro cartilage
Matrix similar to but less firm than that in hyaline cartilage
fibro cartilage
Tensile strength with the ability to absorb compressive shock.
who
fibro cartilage
fibro cartilage Location
The intervertebral cartilaginous discs; pubic symphysis; discs of knee joints.
