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54 terms

AP Lab skeleton

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Which bone has the least amount of spongy bone relative to its total volume?
Long Bones
Humerus
Long Bone
Phalanx
Long Bone
Parietal (Skull Bone)
Flat Bone
Calcaneus
Short Bone
Rib
Flat Bone
Vertebrae
Irregular Bone
Diaphysis
Made almost entirely of compact bone.
Red Bone Marrow
Site of blood cell formation.
Periosteum
a fibrous membrane covering the of bones
Epiphysis
Scientific term for bone end.
Yellow Marrow
Contains fat in adult bones.
Epiphyseal line
Growth plate remnant
What differences between compact & spongy bone can be seen with the naked eye?
Compact bone is very smooth, dense & thick.
Spongy bone has a lot of open spaces.
What is the function of the organic matrix in bone?
Gives bone flexibility & strength
Name the important organic bone components.
Collagen fibers, osteocytes.
What is the function of the calcium salts?
Gives bone hardness & compressional strength.
The skull is one of the major components of the axial skeleton. Name the other two. Then explain what structures do each of these component areas protect.
Ribcage & Vertebral Column
Brain, Spinal Cord, Heart & lungs.
Define Suture
Interlocking immovable joint.
With one exception, the skull bones are joined by sutures. Name the exception.
Mandible
Name 5 bones of the cranium
Frontal, Occipital, Temporal, Ethmoid, Spenoid
What is the orbit?
Eye Socket
Bone forming anterior cranium?
Frontal
Cheekbone
Zygomatic
Upper jaw
maxilla
Bony skeleton of nose
Nasal
Posterior roof of mouth
Palatine
Bone pair united by sagittal suture
Parietal
Site of jugular foramen & carotid canal
Temporal
Contains a saddle that houses pituitary gland
Sphenoid
Allows tear ducts to pass
Lacrimal
Forms most of hard pallet
Maxilla
Superior & medial nasal conchae are part of this bone
Ethmoid
Site of external auditory meatus
Temporal (ear canal)
Has greater & lesser wings
Sphenoid
Its holey plate allows olfactory fibers to pass
Ethmoid
Facial bone that contains sinus
Maxilla
Three cranial bones containing paranasal sinus
Frontal, Ethnoid, & Spenoid
Its oval shaped protrusions articulate with the atlas
Occipital
Spinal cord passes through a large opening bone
Occipital
Forms the chin
Mandible
Inferior part of the nasal septum
Vomer
Contain alveoli bearing teeth
Maxilla & Mandible
Vertebral type with a forked spinous process
Cervical , Vertebra
Pivots on C2; lacks a body
Atlas or C1
Bear facets for articulation with ribs; form part of bony thoracic cage
Thoracic
Forms a joint with the hip bone
Sacrum
Vertebra with block like body & short stout spinous process
Lumbar
Tail Bone
Coccyx
Articulates with the occipital consults
Atlas C1
5 components; unfused
Lumbar
12 components unfused
Thoracic
5 components fused
Sacrumw
Major components of thorax (excluding the vertebral column)
Ribs & Sternum