Bones Flashcards
Bone function
Support body
Store minerals and fat
Produce blood cells
Protect organs
facilitate movement
Types of bones
long
short
flat
irregular
sesamoid
long bones act as
Levers
Shaft of a long bone
Diaphysis
Head of a long bone
epiphysis
Metaphysis
in between Epiphysis and diaphysis
Physis/epiphyseal plate
Growth plate
in between Diaphysis and Epiphysis
Example of long bone
femur
example of flat bone
skull bones
example of irregular bone
vertebra
example of a sesamoid bone
patella
what is a sesamoid bone
an extra bone at a joint for muscle attachment
Axial skeleton has…
the skull and spine
Unpaired skull bones are…
on the midline
bones of the cranium are…
generally flat
for surrounding the brain
bones of the face are…
Those that surround entry points
Dermatocranium bones form from…
bone
chondrocranium bones form from…
Cartilage
Brachycephalic skull type
short, wide head
Pug
Mesaticephalic skull type
regular head shape
Dog
Dolichocephalic skull type
long and narrow head
horse
Anatomical network analysis
which structure touches which
what is their relationship
Cervical vertebrae
neck
thoracic vertebrae
chest
attach to ribs
Lumbar vertebrae
abdomen
Sacral vertebrae
pelvis often fused
Caudal vertebrae
tail
What attaches the ribs to the sternum
cartilage
False ribs attach to the sternum (T/F)
False
Is the sternum one bone
no
made up of sternebrae
May fuse
Ungulates are more likely to have ossified sternabrae (T/F)
True
What are the girdle bones
scapula and pelvis
what do girdle bones make up
the shoulder and hip
appendage attachement
limbs include
all bones past the girdle
what is the difference between an appendage and a limb
an appendage has a girdle
Cursorial mammals
Designed to run
What are adaptations of cursorial mammals
reduced clavicle
elongated distal limb bones
digitigrade or unguligrade posture
What happens to the number of limb bones of cursorial animals
they are reduced
Fused or absent
Brachium
arm
antebrachium
forearm
manus
carpal joint and anything distal
What separates the brachium and antebracium
the elbow
Where to start numbering digits
medially
Which digits are mostly weight bearing
3 and 4
Do cursorial mammals have clavicals
no
they lack bony attachment of the thoracic appendage
What helps cursorial mammals increase their stride length
elongated bones and unguligrade posture