AP Lab skeleton

54 terms by asalvo62 

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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

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