Skeletal Identification

Kimberly Mancillas, Myika Thompson, Kyra Miles, Jennifer Duran, Ross Wilson,

and Callie Schritter.

Axial Skeleton

What are the bones that make up the orbit of the skull?

• Frontal bone• Zygomatic bone • Maxillary bone • Sphenoid bone • Ethmoid bone • Lacrimal bone • Palatine bone

Hyoid

The hyoid is a U shaped bone that helps support the tongue.

Skull

The skull is a framework that closes the brain, it has many different bones that are put together to make the skull.

Mastoid Process

A protrusion on the temporal bone behind the ear, neck muscles are attached It contains small air filled cavities which are called mastoid cells that communicate with the middle ear.

External Occipital Protuberance

The External Occipital Protuberance is near the middle of the occipital squama and is also knows as the “inion”

External Auditory Meatus

Is the ear canal, a curved tube extending from the auricle into the temporal bone, ending at the tympanic membrane.

Zygomatic Process

Zygomatic process is a protrusion of the skull, most of it belongs to the Zygomatic bone. However, there are other bones contributing to it too, known as the frontal bone, maxilla and temporal bone.

Bones in skull:

Frontal BoneParietal Bone

Temporal bone

Occipital bone

Sphenoid bone

Bones in skull cont.:

Ethmoid bone

Nasal bone

Maxillary bone

Mandible bone

Lacrimal bone

Vomer bone

Inferior nasal concha

Stapes, Malleus, and incus:

#1: Incus#2: Stapes#3: Malleus

Spinal Column:Atlas

Axis

Cervical vertebrae's (7)

Thoracic vertebrae’s (12)

Lumbar Vertebrae's (5)

Sacrum & coccyx

Sacrum

Coccyx

Sternum & ribs:

True ribs (7)

False ribs (5)

Manubrium

Body

Xiphoid process

There are a total of 12 ribs in your body, 7 of those are called true ribs, 5 are called false ribs and out of the 5 false ribs there are two that are floating ribs. True Ribs are called true ribs because they are the only ribs that fully connect to your sternum. False ribs don’t each connect to the sternum so that is why they are called false ribs and the floating ribs don’t connect to anything, that’s why they are called floating ribs.

Appendicular System

Upper extremity:Clavicle

Scapula:

Spine

Acromion process

Coracoid process (on anterior side)

Supraspinous fossa

Infraspinous fossa

Subscapular fossa (on anterior side)

Humerus:Head

Neck

Greater tubercle

Intertubercle groove

Lesser tubercle

Deltoid tuberosity

Medial Epicondyle Lateral

EpicondyleCapitulum

Trochlea

Olecranon fossa

Radius & ulna

Carpals, metacarpals, & Phalanges:

There are three types of bones in the hand which are carpals, metacarpals, and phalanges. You start with the thumb and count to five. Eight small bones in the bottom of the hand are Pisiform, triquetrum, lunate, scaphoid, hamate, capitate, trapezoid, trapezium. All of these bones are important for movement and structure.

Lower Extremity:

Femur & patella

Tibia & fibula

Tarsals, metatarsals, & phalanges