Bones, bones, and more bones
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Transcript of Bones, bones, and more bones
The Skull
Bones, bones, and more bonesWednesday Dec 7Bone ClassificationThe skeleton can be divided into ______ broad categories based on their individual shapes
Objective: To learn the categories and be able to put various bones into their appropriate category.Flat bonesFlat bones_______, roughly parallel surfacesFunctionsProvide __________ for underlying soft tissuesProvides extensive surface area for the attachment of ___________________
Irregular bones
ShapeComplex shape with short, flat, notched, or rigid surfacesExamples______________Bones of the PelvisSome skull bonesShort bonesShape___________ and boxyExamplesCarpalsTarsals
Long BonesLong bonesRelatively long and slenderExamples________________PhalangesRadiasFactiodThe femur is the largest and heaviest bone in the body. The body is usually _______ times the length of this bone
Sutural BonesSutural bones (Wormian bones)Known as extra sutural bonesSmall, flat, irregularly shaped bones between the flat bones of the skullFactoidThese bones __________ in number, shape, and position of sutural bones. Borders are like pieces of a jigsaw _____________, size ranges from a grain of sand to a quarter
Sesamoid BonesSesamoid BonesSmall, flat, and shaped somewhat like a ________________ seed. Develop inside tendons and are most commonaly located near joints at the knees, the hands, and the feet.FactoidEveryone has 2 patella but there is potential for up to 26 of these bones
The SkullContains ______ bones: 8-cranium (braincase) and 14-facial____ bones are associated with the skull in addition to the 22 aboveInside- blood vessels, nerves, and membranes that stabilize the position of the brain are attached to the inner surfaces of the skullOutside- The outer surfaces provides an extensive area for the attachment of ______________ that move the eyes, jaws, and head
TermanologyIn the adult skull ____________________ are the immovable joints between the skull bones______________ bones(skull bones) form the cranium. This protects the, a fluid-filled chamber that cushions and supports the brain.______________ bumps on the bones
Occipital boneThe lamboid suture arches across the posterior surface of the skull, superior to the Occipital bone.
Parietal BonesThere are 2 Seperated by the ______________ suture
Frontal Bones______________ suture attaches the frontal bone to the parietal bones on either sideForms the anterior of the craniumForms the roof of the Orbits (eye socket)
Temporal BonesThere are 2The Squamous suture forms a boundry temporal and parietal bones
Styloid ProcessMastoid ProcessSphenoidUnites cranial and facial bonesForms part of the floor of the cranium. A cross brace that strengthens the sides of the skull
Zygomatic BonesThere are 2Form part of the _________________Forms the lateral wall of the orbit (eye socket)
Zygomatic ProcessTemporal ProcessThe two processes form the zygomatic archNasal Bones Supports the superior portion of the bridge of the nose.Conects to cartilage the will support the distal portion of the nose
EthmoidForms The anteromedial floor of the craniumThe roof of the nasal cavityPart of the nasal septumMedial orbital wall
MaxillaeSupports the upper teethForms the inferior portion of the orbital rimUpper jawMost of the hard palate
MandibleLower portion of the jaw
Small bonesLacrimal bonesPalatine bones
VomerConche
Hyoid__________________ boneSupports the larynxThe attachment site for muscles of the larynx, pharynx, and tongue
Auditory ossiclesLocated with in the ______________ ear cavityEnclosed in the _________________ boneAllow us to hear by conducting vibrations produced by sound waves
ProcessesA ___________ feature that changes as we changeIncreases bone surface area, provides more places for ___________ to attachLarger processes grow for attachment of well developed muscles
Funny boneProcessesOlecranon2 styloid processes
Malleolus processesepicondyle
Illiac Crest, ischial tuberocity, ischial spine
Notch at the top- Suprasternal notch
AcromionSpinous
Gender Differences
FemureLength: Male >450 mm; Female 45.5 mm; Female