Lower Extremity Skeleton Flashcards
Bones of the lower extremity
Hip bones
Femur
Patella
Tibia
Fibula
Tarsal Bones
Metatarsals
Phalanges
Imagine a scenario where a health or developmental condition has led to one lower limb being a different length than the other. What could this lead to, especially on a young patient?
Scoliosis (abnormal curvature to spinal column)
What movements can be performed at the hip joint?
Flexion, extension, abduction, adduction, medial rotation, lateral rotation
What movements can be performed at the knee joint?
Flexion, extension
What movements can be performed at the ankle joint?
Dorsiflexion, plantarflexion, inversion, eversion
What movements can the digits perform?
Flexion, extension, abduction, adduction
The pelvic girdle consists of what?
2 hip bones
Each called a coxal bone or innominate bone
- Ilium, ischium, publis
- Acetabulum- socket feature, head of femur articulates here
The lower limb is made of what?
Femur
Patella
Tibia
Fibula
Tarsals
Metatarsals
Phalanges
What are coxae?
Hip bones
What are the regions of the coxae, from superior to inferior?
Ilium
Ischium
Pubis
What is the Anterior Superior Iliac spine?
Bump on front of hips- palpable
What are the anterior structures of the hip bones?
Anterior superior iliac spine
Anterior inferior iliac spine
Pubic tubercle
Pubic crest
Pectineal line
Pubic symphysis
Inferior iliac notch
What is the obturator foramen?
The opening next to the pubic symphysis
Posterior structures of the hip bones
Posterior superior iliac spine
Posterior inferior iliac spine
Ischial tuberosity
Ischial spine
Greater sciatic notch
Lesser sciatic notch
Ischium
What is the Ischial tuberosity?
Bump at bottom, you sit on
What major muscle group originates at the ischial tuberosity?
The hamstrings (posterior thigh)
What are the two features to be aware of on the posterior pelvis?
Greater sciatic notch
Ischial tuberosity
What are the structures seen on the hips from a lateral view?
Acetabulum- hip socket
Anterior, posterior, and inferior gluteal lines
Greater sciatic notch
Ischial spine
Lesser sciatic notch
Anterior and posterior superior iliac spine
Anterior and posterior inferior iliac spine
Obturator foramen
Iliac crest- top curve of hips
Ischial ramus
Superior and inferior pubic ramus
Medial structures of the hip bones
Iliac fossa
Arcuate line
Superior pubic ramus
Auricular surface
Iliac tuberosity
Obturator groove
The Pelvis
Contains the urinary bladder, the sigmoid colon, rectum, and reproductive organs
Consists of two pelvic spaces
Greater Pelvis- superior to lesser pelvis
Lesser Pelvis- inferior to greater pelvis
Pelvic Inlet- boundary between greater and lesser pelvis
Pelvic outlet- lower margin of lesser pelvis
Is the pelvic outlet larger on a male or female?
Larger on the female pelvis
What is the main anatomical difference in regard to childbrearing?
- Pelvic outlet
- Sacrum curve
- Pelvic inlet
- Pubic angle
Relatively broad, low pelvis
Ilia that project farther laterally
Less curvature on the sacrum and coccyx
Wider, more circular pelvic inlet
Enlarged pelvic outlet
Broader pubic angle
What is the pubic angle in female vs male?
Female- 100 degrees or more
Male- 90 degrees or less
What are the proximal structures of the femur?
Head
Fovea
Neck
Greater trochanter
Lesser trochanter
Intertrochanteric line
Intertrochanteric crest