1. Foot musculature and biomechanics, LE Review
Lower Extremity
Foot musculature and biomechanics, LE Review

2. Announcements Surface Anatomy Friday Midterm Exam Monday 60 questions
40 MC
15 T/F

3. Objectives
Describe the gross anatomy for each system (circulatory, muscular, nervous, and skeletal) in the lower extremity.
Integrate the systems to discuss the lower extremity stability and mobility functions.
Analyze common injuries in the lower extremities.
For each muscle, describe how the attachment sites result in an action around a joint.
For each muscle, identify the innervation (peripheral nerve and nerve roots).
Pulled from syllabus

4. Enter your team Back group – vertebral joints & discs
Hip group – hip joints & lumbosacral plexus
Ankle and foot joints group
Shoulder group – shoulder joints & brachial plexus
Elbow and wrist joints group
Last group - cervical plexus & knee joint

5. Spinal accessory nerve Serratus anterior muscle
Your patient has a downwardly rotated L scapula impinging on UE nerves. You suspect weakness of specific muscles causing the habitual downward rotation. Your diagnosis is injury to the:
Thoracodorsal nerve
Spinal accessory nerve
Serratus anterior muscle
Latissimus dorsi muscle B

6. Which of the following associations is correct?
Saddle joint : atlanto-occipital joint
Ball and socket joint : knee joint
Plane joint : talonavicular joint
Ellipsoid joint : carpometacarpal joint of the thumb C

7. Which structure(s) supports all three arches of the foot?
Tibialis Posterior
Fibularis longus
Tibialis Anterior
Spring ligament
Long plantar ligament
Plantar aponeurosis F

8. extensor hallucis brevis. abductor digiti minimi. tibialis anterior.
In the following photograph of a foot, the arrow points to a skin elevation caused by the tendon of the:
extensor hallucis brevis.
abductor digiti minimi.
tibialis anterior.
fibularis brevis.
tibialis posterior. D

9. Which muscle is most stretched in this soccer player’s right leg?
Semitendinosis
Sartorius
Rectus femoris
Gluteus maximus A

10. While on a clinical, your supervisor asks you to test a patient’s superficial fibular nerve function. Which of the following do you do?
Have the patient dorsiflex while you push them into plantarflexion
Have the patient invert while you push them into eversion
Have the patient evert while you push them into inversion
Have the patient plantarflex while you push them into dorsiflexion C

11. Your patient suffered a spinal cord injury at spinal cord level L1
Your patient suffered a spinal cord injury at spinal cord level L1. Which of the following is INCORRECT?
He has weakness to all leg muscles
He has weakness only to the lumbar erector spinae
He has sensory loss only in the L1 dermatome
He cannot walk C

12. Your patient suffered damage to the L4 anterior rootlet on the right side. Which of the following is INCORRECT?
Her quads have been weakened
She has sensory loss at the L4 dermatome
She has difficulty standing from sitting
She has mild Trendelenburg gait B

13. You want to check the circulation of your patient
You want to check the circulation of your patient. Which would you NOT use as a place to palpate his/her pulse?
The inguinal region for the femoral artery
Posterior aspect of the knee for the popliteal artery
The dorsum of the foot, just distal to the ankle joint for dorsalis pedis
Within the tarsal sinus for the tibial artery

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