Lab 3: Introduction to Axial Skeleton (copy)

This is ONLY the different kinds of bones within

Frontal Bone

FORMS FRONTAL and ABOVE ORBITAL

Parietal Bone

SIDES AND TOP OF THE HEAD

Occipital Bone

Forms the BACK AND BASE OF THE SKILL

Temporal Bone

Towards the SIDES AND BASE (bottom) OF THE SKULL (kinda near the ear area)

Ethmoid Bone

FLAT CRANIAL BONE that PROTECTS DELICATE BRAIN

• BETWEEN THE EYES

• It FORMS THE ROOF of the NASAL BONE

• SUPPORTS OLFACTORY NERVES

Sphenoid Bone

Mandible

JAW

Vomer Bone

Small, thin, PLOW SHAPED bone that’s in the MIDLINE OF NASAL CAVITY

Maxillae (sing. maxilla)

UPPER JAW that FORMS PART OF NOSE AND EYE SOCKET

Zygomatic Bones

CHEEKBONES

Nasal Bones

NOSE BONE

Inferior Nasal Conchae (concha)

Lacrimal Bones

INNER WALL OF EYE SOCKET

Palatine Bones

Olfactory Foramina

The little holes within the cribriform plate

• Those little holes and the cribriform plate are PART OF THE ETHMOID BONES (which is deep compared to the lacrimal bone within the eyes)

Coronal Suture

This is the suture that DIVIDES THE FRONTAL AND PARIETAL bones

• It’s another word for the frontal plane that cuts ANTERIOR AND POSTERIOR

• This picture is FACING TOP

Sagittal Suture

This DIVIDES THE left and right PARIETAL BONES

• This DIVIDES LEFT AND RIGHT…what other plane divides the body left and right?

• This is the TOP of the skull

Lambdoid Suture

• DIVIDES PARIETAL and OCCIPITAL BONE

Squamous Suture

DIVIDES the PARIETAL and TEMPORAL BONES

Optic Foramen

Jugular Foramen

Foramen Magnum

Carotid Canal (Carotid Foramen)

Cervical Vertebrae

Thoracic Vertebrae

Lumbar Vertebrae

Sacrum

TRIANGULAR SHAPE that’s INFERIOR to the different vertebras

Coccyx

Hyoid Bone

BELOW THE MANDIBLE

True Ribs (1-7)

• These are the BONES DIRECTLY CONNECTED TO THE STERNUM

  • The individual ribs are connected to the sternum

False Ribs (8-12)

• These ribs are NOT DIRECTLY ATTACHED TO THE STERNUM

  • They’re not individually attached unlike the true rubs

Floating Ribs (11-12)

These are ribs that DOESN’T HAVE COSTAL CARTILAGE

Sternum

Glabella

Occipital Condyle

Mastoid Process

BELOW THE EAR

• There’s TWO SIDES (left and right)

External Auditory Meatus (L/R)

This is an OPENING IN THE EAR that LEADS TO INSIDE THE BODY

Mandibular Fossa

Cribriform plate

Part of the ETHMOID BONE

• OLFACTORY FORAMINA SURROUNDS IT

Perpendicular Plate

Sella Turcica

Part of the SPHENOID BONE

Alveolar Socket of Mandible

This HOLDS THE TOOTH ROOT

Angle of Mandible

JAW ANGLE (in both sides of the head)

Ramus of Mandible

Mandibular Condyle

Alveolar Socket of the Maxilla

This HOLD THE TOOTH ROOT of the UPPER TEETH

Intervertebral Foramen

HOLES BETWEEN EVERY VERTEBRAE

Vertebral Body

Vertebral Foramen

Spinous Process

Looks like MERMAID TAILS

Superior Articular Facet

Inferior Articular Facet

Transverse Process

Transverse Foramen

ONLY CERVICAL HAS THIS

Atlas (C1)

Looks like a STEERING WHEEL/GAME CONSOLE AT TOP VIEW

Axis (C2)

Cervical Dens

• ONLY IN CERVICAL VERTEBRAE

• Looks like a HEAD on anterior view

Body of Sternum

Xiphoid Process

Manubrium