GUIDE UPDATED 2022-2023 Exam
function of the skeletal system (5) --ANS- -protection
-production of blood cells
-storage
-movement
-support body against pull of gravity
types of bones (5) --ANS- 1. long bones
2. flat bones
3. short bones
4. irregular bones
5. sesamoid bones
long bones shape --ANS- long and thin
long bones function --ANS- designed to support body weight and enable movement
the humerus, ulna, radius, and tibia are examples of bones --ANS- long
flat bones shape --ANS- flat and thin
flat bones function --ANS- protection
example of flat bones --ANS- cranium
short bones shape --ANS- small and cube-shaped
function of short bones --ANS- movement
examples of short bones --ANS- carpals in hand and tarsals in the foot
irregular bone shape --ANS- varied in structure with ridges or irregular surfaces
function of irregular bones --ANS- protection and movement
example of irregular bone --ANS- vertebrae
sesamoid bone shape --ANS- small and round
sesamoid bones function --ANS- designed to reinforce tendons
, example of sesamoid bones --ANS- patella
bone landmarks definition --ANS- distinct markings, ridges, grooves, or holes found on
each bone
foramen, canal, fissure --ANS- openings in bone to allow for nerves, blood supply, or a
passageway
sinus --ANS- hollow chamber in bone, usually filled with air
process, ramus --ANS- elevations in bone
trochanter, tuberosity, tubercle, crest, line, spine --ANS- processes or projections for
tendon or ligament attachment
head, neck, condyle, trochlea, facet --ANS- processes designed for articulation with
adjacent bones
fossa, sulcus --ANS- depressions in bone
two main divisions of the skeletal system --ANS- axial and appendicular
axial skeleton components (5) --ANS- (1) skull
(2) vertebral column
(3) sternum
(4) laryngeal skeleton
(4) thoracic cage
# of bones in the skull --ANS- 22 bones (8 cranial and 14 facial)
how many bones make up the cranium --ANS- 8
function of cranium --ANS- protects brain
frontanelles --ANS- soft spots where cranium bones are not fully formed in infants
cranial bones (8) --ANS- -frontal (1)
-parietal (2)
-temporal (2)
-occipital (1)
-sphenoid bone (1)
-ethmoid bone (1)
how many frontal bones are there --ANS- one
which portion of the cranium contains the sinuses? --ANS- frontal bones