Week 1 Flashcards
1
Q
Functions of the Skeletal system
A
- Support
- Protection/ Body cavities
- Movement
- Storage (minerals/ fat)
- Blood cell formation
2
Q
Classifications of bones
A
- Long
- Flat
- Irregular
- Short
- Sesamoid
- Sutural
3
Q
Description- Long Bones
A
- Long and slender
- Located in: Arm, forearm, leg, thigh, hands, fingers, feet and toes
EXAMPLES: Humorous, Femur, Radius and Ulnar
4
Q
Description - Short bones
A
- Small and boxy
- Often grouped together
EXAMPLES: carpals and tarsals
5
Q
Description - Flat bones
A
- Thin, rough, parallel surfaces
- Located: roof of skull, sternum, rubs and scapular
- Protect underlying soft tissue
6
Q
Description - Irregular bones
A
- Complex shapes (short, flat, notched or ridged surfaces)
EXAMPLES: vertebra, pelvis, several bones of skull
7
Q
Description - Sesamoid bones
A
- Small, flat (like sesame seed)
- Developed inside tendons
- Located near joints: patella, wrist and feet
8
Q
Description - Sutural Bones
A
- Wormian
- Small, flat, irregular
- Located : b/w flat bones of skull (add strength and reduce fracture)
9
Q
Axial Skeleton
A
- 80 bones
- –> 29 skull & associated bones
- –> 25 thoracic cage
- –> 26 vertebral bones
- Performs respiratory motions
- Adjusts position of head, neck, trunk
10
Q
Cranial anatomy (bones)
A
Parietal = 2 Temporal = 2 Frontal = 1 Occipital = 1 Sphenoid =1 Ethmoid = 1
11
Q
Cranial bones - Parietal
A
- Functions: form part of superior and lateral surfaces or skull
- Articulations: occipital, temporal, frontal and sphenoid bones
- Regions/ Landmarks: superior and inferior temporal lines
12
Q
Cranial Bones -Temporal
A
- Functions: forms part of lateral walls of cranium and zygomatic arches
- Articulates with mandible
- Surronds and protects inner ear
- Attachment site for muscles that close the jaw and move head
13
Q
Cranial Bones - Frontal
A
- Functions: forms anterior portion of cranium and roof of eye sockets
- Articulations: Parietal, sphenoid, ethmoid, nasal, larcrimal, maxillary & zygomatic bones
- Regions/ Landmarks: superior temporal line, supraorbital margin, Lacrimal fossa, Frontal sinusses
14
Q
Cranial Bones - Occipital
A
-Functions: forms posterior and inferior surfaces of skull
-Articulations: Partital, temporal & sphenoid bones
first cervical vertebra (atlas)
-Regions/ Landmarks: External occipital protuberance, external occipital crest, occipital condyles, foramen magnum
15
Q
Cranial Bones: Sphenoid
A
- Functions: Forms part of floor of skull & unites cranial and facial bones and strengthens side of head
- Articulations: all other cranial bones
- Regions/ Landmarks: lesser & greater wings
