Chapter 6- Tissue And Bone Structure Flashcards
Storage of lipids that represent an important energy reserve in bone occur in areas of…
Yellow marrow
The functions of the skeletal system are…
- It is a storage area for calcium and lipids
- It is involved in blood cell formation
- It’s provides structural support for the entire body
Give an example of a long bone…
Humerus
Bones forming the roof of the skull and the scapula are referred to as…
Flat bones
Depressions, grooves, and tunnels in bone indicate…
Where blood vessels or nerves lie alongside or penetrate bones
An anatomical term used to describe a rounded passageway for blood vessels or nerves is…
Foramen
Mature bone cells found in lacunae are called…
Osteocytes
Giant multinucleated cells involved in the process of osteolysis are…
Osteoclasts
One of the basic histological differences between compact and coo guy bone is that in compact bone…
The basic functional unit is the osteon
Spongy bone, unlike compact bone, resembles a network of bony struts separated by spaces that are normally filled with…
Bone marrow
Songs bone is found primarily at the……..of long bones
Expanded ends of long bones, where they articulate with other skeletal elements
Compact bone is usually thickest where…
Stresses arrive from a limited range of directions
During intramembranous ossification, the developing bone grows outward from the ossification center in small struts called…
Spicules
When osteoblasts begin to differentiate within a mesenchymal or fibrous connective tissue, the process is called…
Intramembranous ossification
The process during which bones begin development as cartilage models and the cartilage is later replaced by bone is called…
Endochondral ossification
Within the metaphysis region is the epiphyseal cartilage, where…
Cartilage is being replaced by bone
The process of removing and replacing bone’s organic and mineral components is called…
Remodeling
The major effect exercise has on bones is that it…
Serves to maintain and increase bone mass
Growth hormone from the pituitary gland and thyroxine from the thyroid gland maintain normal bone growth activity at the…
Epiphyseal plates
What describes a homeostatic mechanism of the skeleton?
- As one osteon forms through the activity of osteoblasts, another is destroyed by osteoclasts
- Adjusting the rate of calcium excretion by the kidneys
- Vitamin D stimulating the absorption and transport of calcium and phosphate ions
When larger numbers of calcium ions are mobilized into the body fluids, the bones…
Become weaker
In a greenstick fracture…
Only one side of the shaft is broken and the other is bent
A Pott’s fracture, which occurs at the ankle, is identified primarily by…
Its specific location
A normal part of the aging process results in bones becoming…
Thinner and weaker
