Skeletal System “Lower Extremity”
Appendicular - Lower Extremity
__ Total Bones
 Hipbone (1) =
 Femur (1) = 2
 Tibia (1) =
 _______ (1) = 2
 Patella (1) = 2
 Tarsals (7) =
 __________ (5) = 10
 Phalanges (14) =
Pelvic Girdle
______________
Formed by fusion of _____ bones
Ilium (superior)
Ischium (__________and posterior)
____________ (inferior and anterior)
Strong and stable support for
____________ column
Ilium (superior)
“Flank”
Most ___________ and largest hipbone
Lateral View
Medial View
Ischium (inferior & posterior)
“Hip”
Inferior, posterior portion of the hipbone
Pubis (inferior & anterior)
“______________ mature”
Anterior and inferior part of the hipbone
Pelvis
Together with the sacrum and coccyx,
the two hipbones form the basin-like
“Pelvis”
Pelvic Brim / Inlet:
• seperates the superior and inferior portions of
the pelvis
• is the superior boundary of pelvis oblique plane
Pelvic
Brim / Inlet
Plane from
sacrum
to
sup. pubic
symphysis
Female Pelvis
• Wide pelvic outlet
• Shallow
Male Pelvis
• Narrow pelvic outlet
• Deep
Female Pelvis
• ______ pelvic outlet
• Shallow
• Pubic arch > 90-deg
Male Pelvis
• __________ pelvic outlet
• Deep
• Pubic arch < 90-deg
Femur
 “Thighbone”
 _________, heaviest,
and ______ bone in body
 Head of femur
 Proximally _________
with hipbone at the
_______________
 _________ articulates
with tibia and patella
Femur – Proximal End
Anterior
Tibia
 “__________Shinbone”
 Larger, medial bone of
lower leg
 Bears _________ of
body’s weighty
 Proximal articulation
with _______ and
__________
 _________ articulation
with fibula and talus
Tibia - Distal End
 Medial Malleolus
“medial ankle bone”
Medial Malleolus
Fibular Notch
Anterior
Fibula
 _______ “shinbone”
 Thinner and smaller
than tibia
 Does not bear much
bodyweight (nonweight bearing)
Patella
 “Kneecap”
 Largest ________bone
 Subcutaneous and
easily _____________
 Increases __________
for quadriceps muscles
 Lies anterior to distal
femur
Tarsal Bones
 _____________
 Heel bone
 Talus
 Most superior and
articulates with tibia
 Navicular
 _____________
 _____________
 Lateral
 ______________
 Medial (1st)
 Intermediate (2nd)
 Lateral (3rd)
Lateral Cuneiform
Intermediate Cuneiform
Medial Cuneiform
Navicular
Cuboid
Talus
Calcaneus
Superior
Metatarsals
 5 per foot
 Numbered 1-5
from big toe to little
toe
 ex: Big Toe
“___________” =1
 ex: Pinky Toe= 5
1 2
3 4 5
Phalanges
 14 bones of the toes
 ____ per toe
 ____ per big toe
 Regions:
 ______________
 ______________
 ______________