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52 Cards in this Set

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-clast

Break

Condyl-

Knob

Fov-

Pit

Poie-

Make

Epiphysis

End of each long bone

Articular cartilage

Coated layer of hyaline cartilage

Diaphysis

Shaft of long bone

Metaphysis

Widening part of the bone between the diaphysis and epiphysis

Compact bone

Tightly packed tissue

Diaphysis

Spongy bone

Thin layers of compact bone

Epiphysis

Trabeculae

Branching bony plates

Intramembranous bones

Membrane like layers of embryotic connective tissue appear at the sites of future bones

Endochondral bones

Develop from masses of hyaline cartilage shaped like future bony stuctures

Intramembranous ossification steps

1. Sheets of embryotic connective tissue appear at the sites of future bones


2. Mesenchymal cells differentiate into osteoblasts, which deposit bone matrix


3. Dense networks of blood vessels supply the developing spongy bone


4. Osteoblasts become astrocytes when bony matrix completely surrounds them


5. mesenchyme on the surface of each developing structure condenses to form periosteum


6. Osteoblasts on the inside of the periosteum deposit compact bone over the spongy bone

Endochondral optimization steps

1. Masses of hyaline cartilage form models of future bones


2. Cartilage tissue brake down. Periosteum develops


3. Blood vessels and differentiating osteoblasts from the periosteum invade the disintegrating tissue


4. Osteoblasts form spongy bone in the space occupied by cartilage


5. Osteoblasts beneath the periosteum deposit compact bone


6. Osteoblasts become astrocytes when bony matrix completely surrounds them.

4 zones of epiphyseal plate

1. Zone of resting cartilage


2. Zone of proliferating cartilage


3. Zone if hypertrophic cartilage


4. Zone of calcified cartilage

Bone remodeling

Occurs throughout life as osteoclasts resorb bone tissue and osteoblasts replace the bone; remodeling if spongy bone is faster than of compact bone

Factors influencing bone development, growth and repair are;

Nutrition, exposure, hormonal secretions, and physical exercise

Growth hormone

Secreted by pituitary gland; stimulates division of cartilage cells in the epiphyseal plates

Hematopoises

Process of blood cell formation

Red marrow

Red blood cells, white blood cells, and blood platelets form

Hemoglobin

Red, Oxygen-carrying pigment in red blood cells

Yellow marrow

Stores fat, does not produce blood cells.

8 cranial bones

1 Frontal


2 parietal


1 occipital


2 temporal


1 sphenoid


1 ethmoid

14 facial bones

2 maxilla


2 palatine


2 zygomatic


2 lacrimal


2 nasal


1 vomer


2 inferior nasal conchs


1 mandible

6 middle ear bones

2 Melleus


2 incus


2 stapes

26 vertebral column bones

7 cervical vertebra


12 thoracic vertebra


5 lumbar vertebra


1 Sacrum


1 coccyx

25 Thoracic cage bones

24 ribs


1 sternum

4 Pectoral girdle bones

2 scapula


2 clavivle

60 upper limb bones

2 humerus


2 radius


2 ulna


16 carpal


10 metacarpal


28 phalanges

2 Pelvic girdle bones

2 Hip bones

60 lower limb bones

2 femurs


2 tibia


2 fibula


2 patella


14 tarsal


10 metatarsal


28 phalanges

Condyle

Rounded process that usually articulated with another bone


Occipital condyle of the occipital bone

Crest

Narrow ridgepole projection


Iliac crest if the illium

Epicondyle

Projection situated above a condyle

Facet

Small, nearly flat surface

Fissure

Cleft or groove

Frontanel

Soft spot in the skull where membranes cover the space between bones

Foramen

Opening through a bone that usually serves as a passageway for blood vessels, nerves, or ligaments

Fossa

Relatively deep pit or depression

Fovea

Tiny pit or depression

Head

Enlargement on the end of a bone

Linea

Narrow ridge

Meatus

Tube like passageway within a bone

Ramus

Branch or similar extension

Sinus

Cavity within a bone

Spine

Thorn like projection

Sulcus

Furrow or groove

Suture

Interlocking line of union between bones

Trochanter

Relatively large process

Tubercle

Knob like process

Tuberosity

Knob like process usually larger than a tubercle