Lecture 12 Flashcards
Skeletal tissue form ____
Bones
There are ______ bones in the skeleton
206
Axial skeleton includes
Skull, hyoid, spine, thorax
Appendicular skeleton structures
Upper and lower extremities, shoulder girdle, hip girdle
Skull is made of ___ bones
28
Most the bones in the skull are catagorized as
Cranial or facial bones
The 8 cranial boens are
Frontal Parietal (2) Temporal (2) Occipital (1) sphenoid (1) Ethmoid (1)
The occipital bone froms a moveable joint with
C1
14 facial bones
Maxilla (2) Mandible Zygomatic (2) Nasal (2) Lacrimal (2) Palantine (2) Inferior nasal conchae (2) Vomer (1)
THE MANDIBLE IS ________ AND FORMS ______
The largest/strongest facial bone
And forms only moveable joint of the skull with the temporal bone
What does the zygomatic do?
Shapes the cheeks
Lacrimal has grooves for =
The tear ducts
6 EAR BONES
Malleus/hammer (2)
Incus/anvil (2)
Staples/stirrup (2)
Spaces between the facial bones make up the
Sinuses
The fetal skull has 4 soft spots called
Fontanels
Fontanels allow the skull to be
Flexible during birth and allow for rapid growth of the brain
Where is the hyoid bone located
Just superior to the larynx and inferior to the mandible
The hyoid is supsended from
The styloid processes of the temporal bone
The hyoid bone does ____ with other bones
Articulate
The hyoid function for ______ and ______
Tongue movement and swallowing
Curvature of spine gives …
Stength to body allowing us to stand and walk
How many total vertebrae?
24
Vertebrae types break down
Cervical (7) Thoracic (12) Lumbar (5) -sacrum -coccyx
Vertebrae are stacked to give spine
Flexibility and strength
ALL VERTEBRAE HAVE SIMILAR FEATURES EXCEPT __
C1
All vertebrae have and ____ with eachother
Foramen and articulate with eachother
C2 has a ___
Upward projection to allow for rotation of the head
C7 has
A long blunt spinous process
Thoaracic vertebrae articulat with
THE RIBS
As a whole the vertebral column articulates the
Head,ribs and iliac bones
Thorax is made of
Vertebral column + sternum +ribs
The thorax is ____ shaped
Dagger
3 part of sternum from superior to inferior
Manubrium
Body
Xiphoid process
Manubrium articulates with ____ and -_____
Clavicle and 1st rib
9 ribs are joined to
Sternum body or costal cartilage
The thorax has ___ rib pairs
12
Each rib pair attach
Posteriorly to a thoracic vertebrae
Alll rib pairs except the ________ attach anteriorly to ____ by ______
2 pairs
Sternum
Costal cartilage
The ___ , _____ , and _____ pairs attach to the cartilage of the 7th ribs and are called the _______
8,9,10
False ribs
11 and 12 pair dont attach to any ____ and are called
Costal cartilage and are called floating ribs
