Skeletal Tissue Flashcards
What are the 3 components of the intercellular matrix of cartilage?
Glycoproteins
Collagen
Elastic Fibers
Is skeletal tissue a type of connective tissue?
Y
What is the perichondrium?
An onion like connective tissue that forms around cartilage
Is a perichondrium found on articulate cartilage?
N
What is the smooth cartilage found between joints called?
Hyaline
Are there fibers in hyaline cartilage?
Y, but can’t see
Cartilage that is really good at withstanding tension and absorbing shock is known as ____ cartilage
Fibro
Where are the two places that fibrocartilage is found?
Intervertebral discs, pubis synphasis
The cells that make up bone are known as?
Osteocytes
What kind of cell makes osteocytes?
Osteoblasts
2 reasons that we need osteoclasts?
- Remodeling
2. Nutrient deficiency
What are the two intercellular substances of bone?
calcium phosphate
Hydroxyapatite crystals
What makes bones hard?
Ca and P
What makes bones strong?
Collagen
Is cartilage vascular?
No
Is bone vascular?
Yes
Perichondrium is to cartilage as _______ is to bone
Periosteum
What is the shaft of a bone?
Diaphysis
What are the ends of a long bone called?
Epiphysis
Where the epiphysis meets the diaphysis is called the _____?
Metaphysis
Where one bone meets another is called a ______?
Articulation
“Articular cartilage”
Hyaline
What is the hollow part of the bone?
Marrow cavity
Yellow vs red marrow cavity?
Yellow storing fat
Red making blood
The membrane lining the medullary cavity is known as a _________ which is rich in ___________
Endosteum
Osteoclasts
Osteon
The cylinders that run through the bone
A _________is running vertical in the bone, and the _________ canal are running horizontal
Central canal
Perforating
What is the disadvantage of compact bone and what is the advantage compared to cancellous or sponges bone?
Strong vertically, not so strong in other directions
Spikes of the spongey bones called?
Trabeculae
What is the space in between trabeculae known as? What does it do?
Interosteospace, red bone marrow is found here
Advantage vs disadvantage of spongey bone? Compared to compact bone.
Overall weaker, but stronger from more directions
What are the two types of ossification?
Endochondrial
Intramembranous
What is intramembranous ossification?
When osteoblasts are directly responsible for making more cells
What is endochondrial ossification?
When cartilage is made first and then turned to bone
______________: the growth plate that can be found at the end of bone
Epiphyseal plate
Sesamoid bone? Ex?
Bone imbedded in a tendon. Patella
What bones contribute to the orbit?
Frontal Zygomatic Ethmoid Sphenoid Maxilla Lacrimal Palatine
Forehead bone?
Frontal Bone
__________: the hole found in the frontal bone above the eye socket
Supraorbital foramen
What is the suture that connects the parietal bone and the frontal bone?
Coronal suture
___________: the bone on the very top of the skull and on the sides
Parietal
What is the suture that connects the L and R parietal bones?
Sagittal
_________: the bone that is the temples and wraps below the ears
Temporal
Describe the basic characteristics of cartilage
Has chondrocyte cells
Avascular
Fibers
Identify, describe, and give an example of the 3 basic cartilage types.
- Fibrocartilage
- Hyaline
- Elastic
Describe the composition of bone.
Minerals (hydroxyapatite crystals – primarily calcium based for hardness), collagen fibers for strength and bone cells in their lacunae
Define osteocyte, osteoblast, and osteoclast.
Bone cell
Bone making cell
Bone breaking cell
List and describe the 7 parts of a typical long bone.
- Articular cartilage
- Epiphysis (ends)
- Metaphysis (neck)
- Diaphysis (shaft)
- Marrow cavity
- Periosteum (outer covering)
- Endosteum (lining marrow cavity).
Fossa
A shallow depression
Fissure
Narrow slit like opening
Foramen
A round opening though a bone
Notch
a small indent
meatus
Canal-like passage way
Condyle
Rounded projection, often involved in articulation
Facet
Smooth part of an articualation
Process
Protruding part of the bone most commonly associated with muscle attachment
