Part 2: Axial skeleton Flashcards
bones # in human skeleton
206
bones # in axial skeleton
80
axial skeleton is the part of the skeleton that consists of______
the bones of the head and trunk of a vertebrate
axial skeleton parts
skull and associated bones
thoracic cage
vertebral column
bone # in skull and associated bones
29
bone # in thoracic cage
25
bone # in vertebral column
26
skull & associated bones parts
skull proper
others close to face/within face
bone # in skull
22
bone # in other bones close/within face
7
skull parts
cranium
face
bone # in cranium
8
bone # in face
14
other bones close/within face parts
ossicles
Hyoid
bone # in ossicles
6
bone # in hyoid
1
thoracic cage parts
sternum
ribs
bone # in sternum
1
bone # in ribs
24
vertebral column parts
vertebrae
sacrum
coccyx
bone # in vertebrae
24
bone # in sacrum
1
bone # in coccyx
1
4 functional roles of axial skeleton
1) supportive and protective framework for internal organs
2) skull houses special sensory organs
3) vertebral column & ribs provide attachment for muscles
4) respiration
Label 1-14 + stars
- frontal bone
- parietal bone
- occipital bone
- temporal bone
- mandible
- maxilla
- zygomatic bone
- sphenoid bone
- ethmoid bone
- lacrimal bone
- nasal bone
- coronal suture
- lambdoid suture
- squamous suture
purple stars: zygomatic arch
white stars: External auditory (acoustic) meatus
grey stars: Styloid process
black stars: Mastoid process (air cells)
Label 1-6
- frontal bone
- parietal bone
- occipital bone
- coronal suture
- sagittal suture
- lambdoid suture
Label 1-6
- parietal bone
- occipital bone
- temporal bone
- mandible
- sagittal suture
- lambdoid suture
Label 1-10
- frontal bone
- zygomatic bone
- maxilla
- sphenoid bone
- nasal bone
- mandible
white asterisk: ethmoid bone
black asterisk: inferior nasal conchae
Label 1-8 + black arrow
- frontal bone
- zygomatic bone
- maxilla
- sphenoid bone
- ethmoid bone
- lacrimal bone
- superior orbital fissure
- optic canal
yellow bone: palatine bone
Label 1-12
- Maxilla
- Palatine bone
- Vomer
- Zygomatic bone
- Temporal bone
- Zygomatic arch
- Sphenoid bone
- Occipital bone
- Occipital condyle
- Foramen magnum
- Carotid canal
- Jugular foramen
Label 1-10 and black asterisk
- Frontal bone
- Parietal bone
- Temporal bone
- Occipital bone
- Sphenoid bone
- Ethmoid bone
- Vomer
- Maxilla
- Nasal bone
- Mandible
* Palatine bone
Label 1-5 + circle
- Frontal bone
- Ethmoid bone
- Sphenoid bone
- Temporal bone
- Occipital bone
circle: sella turcica
The sella turcica is a _____of the human skull and houses the _____
saddle-shaped depression in the sphenoid bone
pituitary gland
The cribriform plate is a _____ at the base of the skull and it’s important for ____
portion of the ethmoid bone located
sense of smell
The petrous portion is in ______ and its’s important for _____
temporal bone
hearing & balance
The skull base can be subdivided into 3 regions: ______
the anterior, middle, and posterior cranial fossae
The anterior, middle, and posterior cranial fossae house the _______ respectively
anterior frontal lobe,
temporal lobe,
cerebellum and brain stem,
TMJ stands for ____
Temporomandibular joint
TMJ is a _____
bilateral synovial articulation between the temporal bone of the skull above and the mandible below