Skeletal system Flashcards
What are the bones of the axial skeleton
-Skull
-Hyoid bone
-Vertebral colomn
-Ribs
-Sternum
-Middle ear bones
What are the bones of the Cranium
-Frontal bone
-Parietal bon:
-Occipital bone
-Temporal bone
-Sphenoid bone
-Ethmoid bone
What are the bones of the face?
-Maxillae
-Palatine bones
-Zygomatic
-Inferior nasal conchae
-Vomer
-Nasal bone
-Mandible
-Lacrimal
Hyoid Bone
Bone superior to the larynx
Only bone in the body that does not articulate with another bone.
Anchors the tongue
Site attachement for muscles associated with swallowing.
What are the main functions of the vertebral column
Supports the rib cage
Servers as a point of attachment for the pelvic girdle
Protects the spinal cord
How many cervical vertebrae are there
7
How many throacic vertebrae are there?
12
How many Lumbar vertebrae are there?
5
How man sacral vertebrae are there?
5
How many coccygeal vertebrae are there?
3-5
What is lordosis?
The exaggerated lumbar curvature?
(Reminds me of a duck.)
What is Kyphosis?
The increased roundness of the thoracic curvature.
(Hunchback)
what is Scoliosis?
Abnormal lateral curvature that occurs most often in the thoracic region.
Define epiphysis
The end of a long bone that ossifies separately from the central portion.
Define diaphysis
The shaft of a long bone
Define metaphysis
The neck protion of a long bone between the epiphysis and diaphysius. Contains the growth plate.
Define medullary cavity
The central cavity of the bone shaft where the yellow marrow is stored.
Define periosteum
The membrane that covers the outer surface of bones.
Define endosteum
The membrane covering the internal wall of the medullary cavity
What are the characteristics of compact bone?
Bone composed of repeating units of osteons.
What are the primary functions of the skeletal system
-Support
-Protection
-Assistance in movement
-Mineral storage and release
-Blood cell production
-Fat storage
How does the skeletal system provide support as a basic function?
The skeletal system provides a frame for the body. Providing muscle attachement.
Also supports other systems by storing and releasing nurtrients
How does the skeletal system provide protection as a primary function?
Protects the internal organs from injury.
How does the skeletal system provides Assistance in movement as a primary function?
Most skeletal muscles attach to bones, and when they contract, they pull on bones to produce movement.
