Anatomy
This nerve innervates the vastus lateralis m.
Femoral n.
1
Pons
The dorsal column medial lemniscus (DCML) pathway carries these sensations.
•Conscious proprioception, vibration, fine discriminative touch
These arteries give rise to the anterior and posterior spinal arteries.
Vertebral arteries
This is the only extracapsular ligament of the knee joint.
Fibular (Lateral) collateral ligament
These are the boundaries of the femoral triangle.
- Inguinal ligament
- Adductor longus m.
- Sartorius m.
2
caudal midbrain
The DCML pathway decussates at this level.
Caudal Medulla
This artery supplies the corpus callosum
Anterior cerebral artery
This is the most likely injured ligament with forced inversion of the ankle joint.
Anterior talofibular ligament
A biker is hit by a car and fractures his anterior superior iliac spine. Which muscle attaches here and what is its action.
Sartorius m.
Flexes, abducts and laterally rotates thigh, flexes knee
3
Cervical spinal cord
Pain sensation decussates here.
Anterior Commissure
This supplies the major blood supply to the midbrain
Posterior cerebral arteries
This is the strongest ligament of the hip joint and prevents hyperextension during standing.
Iliofemoral ligament
These three structures are often damaged by a lateral impact to the knee.
1. Anterior Cruciate Ligament
2. Medial Meniscus
3. Tibial (Medial) Collateral Ligament
4
Mid midbrain
Fine touch sensation from the foot synapses on a 2nd order neuron here.
Nucleus Gracilus
An older man is having both motor and sensory deficits in his trunk, arm, and face. What artery was likely occluded in this man.
Middle Cerebral Artery
This cutaneous nerve provides sensory input from the posterior lateral leg.
Sural n.
While opening a door, a second year medical student, accidentally breaks a window pane with his knee and receives a 5 cm laceration on the lateral aspect of his knee. He has trouble abducting, flexing and internally rotating the hip. What structure did he likely damage?
Iliotibial tract
5
Caudal Medulla
Temperature and pain sensation third order neuron projects here.
Somatosensory cortex in the postcentral gyrus
You are shadowing a vascular surgeon who is performing an endothelial vascular repair of an aortic dissection in which she places a large stent within the true lumen of the descending aorta. The surgeon has a spinal drain placed before the procedure in an effort to keep the spinal perfusion pressure high. Unfortunately, after the procedure, the patient wakes up without sensation or motor control from T9 down. What happened?
Blood supply to the artery of Adamkiewicz was blocked by the stent.
What are the borders of the adductor canal and what lies in it?
Contents: superficial femoral artery, femoral vein, saphenous nerve, and the nerve to the vastus medialis