Flashcards in Chapter 6: The Lower Limb Deck (385)
-attached to the axial skeleton via the sacro-iliac joint
-separated from the abdomen, back, and perineum via a continuous line
what is the lower limb divided into?
posterior region of lower limb
extends to the pelvis
important transitions between regions of lower limb
contains major blood vessels of the lower limb and one of the major nerves (the femoral)
pass between the thigh and leg through the popliteal fossa
major vessels and nerves
pass between the leg and foot through the tarsal tunnel
Most nerves and vessels and flexor tendons
major function is support of the body with little energy expenditure
center of gravity is just anterior to vertebrae SII
how is energy expenditure reduced while standing?
Hip and particularly knee joints can “lock” while standing
second function of the lower limb
what are the movements at the hips?
-medial and lateral rotation
is primarily a hinge joint that flexes and extends
what are the movements at the ankle?
what anatomical features work together to maximized efficiency of walking by reducing the amount that the body's center of gravity moves?
-Pelvic rotation minimizes a drop
-Movement of knees to the midline reduces a lateral shift
-Knee flexion minimizes a rise
-Pelvic tilt minimizes a rise
how much does the body's center of gravity fluctuate?
only 5 cm in the vertical and lateral planes
bones of the gluteal region
joint between hip and femur
large ball and socket joint
-the bone of the thigh, it articulates with the leg at the knee joint
-shares an articular cavity with the patella
the principle articulation of the knee
joint between the femur and tibia
bones of the leg
large and weight bearing
lateral and does not take part in the knee joint nor bear any weight
formed by a recess formed between the tibia and fibula and part of the talus (tarsal bone)
bone of the foot
occurs at joints between the tarsal bones
inversion and eversion of the foot
how many tarsal bones are there?
7 tarsal bones
what are the 5 metatarsals limited in their movement by?
deep transverse ligaments