Skeletal System - “Lower Extremity”
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Transcript Skeletal System - “Lower Extremity”
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:
______________
______________
______________