Download Bone Types File

Bell Ringer
• Name one of each of the following: short
bone, long bone, irregular bone, and flat
bone.
• What are some characteristics of a long bone?
• Where do we find long bones, and what part
of the skeleton?
Short/Irregular/Flat Bones
By: Mr. Schlamb
Short Bones
• Kind of shaped like “irregular cubes”
• They are spongy with a covering of compact
tissue
• Examples would be the bones of the wrist,
ankle, and kneecap
Flat Bones
• Broad flat plates of spongy tissue sandwiched
between two layers of compact tissue
• They protect organs and are anchor points for
muscles
• Examples include ribs, sternum, scapula, skull
and hips
Irregular Bones
• As you might have guessed these bones are
irregularly shaped
• The proportion of spongy bone to compact
bone varies from one bone to the next
• Examples are the vertebrae and facial bones
Bell Ringer
• What two functions do flat bones do?
• What are the two main places we find
irregular bones?
• What are short bones shaped like?
Facial Bones
By: Mr. Schlamb
Maxillae
• Two maxillae bones
• They form the upper jaw, and each has an
alveolar process in which the teeth are located
• Other processes called the palatine processes,
form the anterior portion of the hard palate,
the roof of the mouth
• The maxillae also contributes to the floors of
the orbits and to the sides and floor of the
nasal cavity
Palatine Bones
• Two palatine bones
• They make up the posterior portion of the
hard palate and the floor of the nasal cavity
 A cleft palate results when the palatine bones
have failed to fuse
Zygomatic Bones
• Two zygomatic bones
• Form the sides of the orbits and the
cheekbones
• Each bone has a temporal process that joins
the zygomatic process of a temporal bone
Lacrimal Bones
• Two small and thin lacrimal bones
• Located on the medial walls of the orbits a
small groove between the orbits and the nasal
cavity serves as a pathway for a tube that
carries tears from the eyes to the nose
Nasal Bone
• Two nasal bones
• Small rectangular bones that form the bridge
of the nose
• The ventral portion of the nose is cartilage
Vomer Bone
• One vomer bone
• Joins with the perpendicular plate of the
ethmoid bone to form the nasal septum
Inferior Nasal Conchae
• Two inferior nasal conchae
• Thin curved bones that project into the nasal
cavities and are attached to their lateral walls
• Like the superior and middle nasal conchae
(skull bones) they support the mucous
membranes that line the nasal cavity
Mandible
• One mandible and is the only moveable portion
of the skull
• Its horseshoe shape gives us a chin and it
contains two upright projections called rami
• Each ramus has a mandibular condyle that
articulates with a temporal bone and a coronoid
process which serves as a place of attachment for
muscles used for chewing
• The lower teeth are located on the alveolar arch
of the mandible
Hyoid Bone
• The hyoid bone does not belong to the facial
bones, skull bones, or the cranium as a whole
• It is the only bone in the body that does not
articulate with another bone
• It is U shaped and is located superior to the
larynx (voice box) in the neck
• It is suspended from the styloid process of the
temporal bones by stylohyoid muscles and
ligaments
• It anchors the tongue and serves as the site of
muscle attachment of several muscles associated
with swallowing