Bones of the skull

1. Kazakh-Russian Medical University

KAZAKH-RUSSIAN MEDICAL UNIVERSITY
INDEPENDENT WORK
THEME:BONES OF THE SKULL
D O N E B Y:S A G ATO VA M A D I N A .
FAC U LTY:G M
GROUP:104А
C H E C K E D B Y:K O S B ATY R O VA N . B

2. PLAN

Bones of the skull
Cranial Bones
Cranial sutures
Facial Bones

3. Bones of the skull

BONES OF THE SKULL
Skull contains 22 bones (8 cranial and 14
facial). Cranial bones form the cranial cavity
that surrounds and protects the brain • Facial
bones form the framework of the face, support
the entrances to the digestive and respiratory
systems, and provide attachment points for the
muscles involved in facial expression

4. Bones of the skull

BONES OF THE SKULL

5. Cranial Bones

CRANIAL BONES
• Frontal (1): Forms the forehead and the roofs of the
eye sockets
• Parietal (2): Form the sides and roof of the cranial
cavity.
• Occipital (1): Forms the back and the base of the
cranium. Contains foramen magnum.

6. Cranial bones

CRANIAL BONES

7.

• Temporal (2): Form the lower sides of the cranium.
Contains the external auditory meatus (ear canal)
• Sphenoid (1): Spans the width of the cranial floor.
Shaped like a butterfly
• Ethmoid (1): Forms most of the bony area between the
nasal cavity and the orbits. 3 parts: Cristagalli (triangular
upper portion), Cribiform plate (contains olfactory
foramina), and Perpendicular plate (forms part of nasal
septum)

8. Cranial sutures

CRANIAL SUTURES
• Cranial sutures • Sagittal
suture: between the parietal
bones
• Coronal suture: between the
frontal bone and the parietal
bones
• Lambdoid suture: between
the occipital bone and the
parietal bones

9. Facial Bones

FACIAL BONES
• • Maxillae (2): Form the upper jaw, floor of the orbits,
and roof of the mouth. Contains the upper teeth
Palatine (2): L-shaped bones behind the maxillae
Nasal (2): Form the bridge of the nose
• Lacrimal (2): Located in the medial walls of the
orbits (eye sockets)

10.

11. Facial Bones

FACIAL BONES
• Zygomatic (2): Cheek bones. Joins with the temporal
bone to form the zygomatic arch
• Inferior nasal conchae (2): Thin, curved bones that
project into the nasal cavity
• Vomer (1): Forms part of nasal septum
• Mandible (1): Lower jaw. Articulates with the
temporal bone at the temporomandibular (TMJ) joint.
Contains the lower teeth and mental foramina

12. Questions

QUESTIONS
1.
2.
3.
4.
5.
6.
7.
8.
9.
What bones are the skull?
Which species have cranial bones?
How many bones brain cranium?
How many facial bones?
What are the inputs of the system support front skull?
Why need the skull bones?
What is involved in bone facial expression?
Where is the sagittal suture?
What is the shape of the upper jaw, the floor of the orbit and the
roof of the mouth?
10. What jaw contains lower teeth?