Brain surgery

https://anamerch.tumblr.com/post/161367785042

https://anamerch.tumblr.com/post/158859767807/anatomicdeadspace-x-ray-of-internal-decapitation

Brain: I got an Idea!

Aphasia

Vertebrae & Vertebral Nerves

Source: Adams & Victor's Principles of Neurology

Upper arm Innervation

Parasympathetic Innervation

Humerus Fracture

These are the most common humeral fracture sites and their related injuries.

Rotator Cuff Muscles

 

Remember them with the mnemonic SITS (Supraspinatus, Infraspinatus, Teres Minor, Subscapularis).
Also remember the "Empty can supraspinatus test" used to evaluate this muscle asking the patient to abduct his/her arm to 90 degrees and flex the arm from that position 30 degrees (horizontally) with thumbs pointing to the floor, then apply downward force to his/her arms. This maneuver will elicit pain and weakness on the affected side due to impingement of the supraspinatus tendon (the most commonly affected structure in Rotator cuff Sd) between the acromion and the head of the humerus.

Nerves and Muscles responsible for abduction of the arm:

• Initiates arm abduction (initial 10 degrees) → Supraspinatus muscle <Suprascapular nerve>
• Abduct arm beyond 10 degrees → Deltoid muscle <Axillary nerve>
• Raise arm above horizontal → Serratus ant & Trapezius muscles <Long thoracic & Spinal acc nerves>

Trigeminal Nerve

Conjugate or Lateral Gaze

If the patient has a lesion on the right medial longitudinal fasciculus , upon asking the patient to look towards the left, only the left eye will go to the left while the right eye will be facing towards the examiner (front)

Spinal cord

Source: neuroanatomyblog

Sensitive Pathways

Corticospinal tract (Motor Pathway)

Von-Hippel-Lindau Syndrome

Adrenergic Drugs

Brain Arteries

Brain (Vivi's notes)

 

Cerebral cortex efferent pathways

Parkinsonian Gait Demonstration