Introduction to the skeleton Flashcards
What important landmarks does the axial skeleton contain bones in and how many bones are there in the axial skeleton?
- skull
- ossicles
- hyoid bone
- rib cage
- vertebral column
There are 80 bones in the axial skeleton
What important landmarks does the appendicular skeleton contain bones in and how many bones are there in the appendicular skeleton?
- shoulder girdle
- arm
- hands
- leg
- foot
- pelvic girdle
There are 126 bones in the appendicular skeleton.
What is the function of the appendicular skeleton
- It creates a framework for the attachment of the limb muscles
- It helps our skeleton to move.
What are the bones of the upper limb
- Clavicle
- Humerus
- Radius
- Ulna
- Carpal bones (8)
- Metacarpal bones (5)
- Phalanges (14)
What does the pectoral girdle consist of?
- Clavicle
- Scapula
- Acromioclavicular joint
- sternoclavicular joint
- Glenohumeral joint
- Humerus
What are the bones of the lower limb?
- Femur
- Patella
- Tibia
- Fibula
- Tarsal bones (8)
- Metatarsals (5)
- Phalanges (14)
What does the alveolar process landmark on the skull mean?
- Alveoli refers to sockets
- Alveolar process forms the sockets for the upper teeth
- Alveolar process forms the sockets for the lower teeth
- Alveolar process is made up of compact bone and is crucial for maintaining the stability and alignment of the teeth.
What is the fuction of the hyoid bone?
- The hyoid bone provides an attachment surface for muscles and ligaments.
- That stabilise and move the tongue and larynx.
Tell me the number of bones in the skull and name how many of each.
- The skull can be split into the cranium and the face.
8 cranial bones and 14 facial bones; in the cranium you only have “2” that have 2 and in the facial you only have “2” that are 1.
* In the cranium:
* Occipital (1), Parietal (2), Frontal bones (1), Temporal bones (2), Sphenoid (1), Ethmoid (1)
- In the face:
* Maxillae (2), Palatine bones (2), Nasal bones (2), Inferior nasal conchae (2), Zygomatic bones (2), Lacrimal bones (2), Vomer (1), Mandible (1) - The skull also has some assosciated bones: It has six auditory ossicles in temporal bones; it also has one hyoid bone.
How many facial bones are there? And can you point to the important landmarks?
- There are 14 facial bones.
What is the only bone in the body that does not directly articulate with another?
The hyoid bone