Appendicular Skeleton Flashcards
what are the two divisions of skeletal system
axial & appendicular
how many bones are in axial
80 bones around body axis
how many bones in the appendicular
126 bones upper & lower limbs plus girdles that connect them
which bones are included in appendicular skeleton
pectoral (shoulder) girdles
upper limbs
pelvic (hip) girdle
lower limbs
what does the pectoral girdle do?
attaches bones of upper limbs to axial skeleton
right & left clavicle/collar bone & scapula/shoulder blade
what are the three upper limb bones
humerus
ulna
radius
what is the humerus (upper limb)
upper arm bone
articulates with scapula at shoulder
articulates with radius & ulna at elbow
what is the ulna (upper limb)
medial bone
what is the radius bone (upper limb)
lateral bone (thumb side)
what are the three bones in wrist & hand
carpus
metacarpals
phalanges
what is the carpus
wrist
holds 8 bones
what is the metacarpals
5 bones of hand
number 1-5 starting with the thumb
what is the phalanges
14 bones of fingers
numbered starting with the thumb
each finger had 3 bones (except the thumb)
what are the three bones that the fingers have
proximal
medial
distal phalanges
what are the bones which are found in the thumb
2 bones
proximal & distal
what does the pelvic girdle include?
two hip bones
where are the hip bones joined?
at the front- public symphysis
at the back- sacrum (sacroiliac joint)
what can the hip bone also be called?
coxal bone
which bone has a different shape depending on gener
pelvic bone
what is the female pelvic like?
lighter
shallower
wider
outlet is larger
oval rather than heart shaped
what are the 4 lower limb bones called
femur
patella
tibia
fibulawha
what is the femur
thigh bone
articulates with hip bone
what is the patella
kneecap in front of knee joint
what is the tibia
large medial, weight-bearing bone of leg
shin bone
