Motion happens within a________ and around an axis that is ___________
plane ; perpendicular to the plane
Please name the borders for the Quadrangular Space
HINT: There are 4, as well as contents
Inferior → teres major
Superior → teres minor
Lateral → humerus
Medial → long head of triceps
Contents: posterior circumflex humeral artery and axillary n.
Name the 4 ribs that articulate with one vertebral segment only
1, 10, 11, 12
Finkelstein Test
De Quervain’s Disease
Latissimus Dorsi
N - Thoracodorsal Nerve
F - adduction and extension of the UE
_______ is the most commonly fractured bone of the wrist.
Scaphoid bone
Please name the borders of the Inferior Lumbar Triangle (Triangle of Petit)
BONUS: Explain the 2 POPS that occur in a lumbar puncture
Inferior → iliac crest
Medial → lateral border of latissimus dorsi
Lateral → posterior border of external abdominal oblique
Floor → internal abdominal oblique
BONUS
Pop 1 = ligamentum flavum
Pop 2 = pierces dura into subarachnoid space
Neurologic Testing (deep tendon reflexes)
Biceps Reflex (C5/C6)
Triceps Reflex (primarily C7)
Colles Fracture
Dinner fork (due to posterior displacement)
Trapezius
N - Spinal Accessory Nerve
F - elevate the shoulder, pull the scapula backwards
All muscles of the triangle are innervated by the ______
suboccipital nerve
Please name the borders of the subausculation triangle
Medial border → lateral border of trapezius
Inferior border → superior border of latissimus
Lateral border → medial border of the scapula
Give the nerves and the functions of the Serratus Anterior
N - Long Thoracic Nerve (C5, C6, C7)
F - holds scapula against thoracic cage
Claw Hand
Dejerine-Klumpke Paralysis
Rhomboid Major and Minor
Rhomboid Major and Minor
N - dorsal scapular nerve
F - Retract and fix scapula
During herniated disc, ___________ during herniation due to weakness of the posterior longitudinal ligament.
protrudes posteriorly and laterally ; weakness of the posterior longitudinal ligament.
Please name the borders of the Sub-occipital Triangle
+ Include the roof and floor in your answer
Medial border → rectus capitis major posterior
Lateral border → superior oblique capitis
Inferior border → inferior oblique capitis
Roof → semispinalis
Floor → posterior atlanto-occipital membrane
Contents:
Name the 6 Key Dermatomes and their location
Key Dermatomes
T4 = nipple
T10 = navel
T12 = above the pubis
L5 = hallux
C7 = middle finger
C8 = little finger
Explain the lateral, medial, contents and floor of the Anatomical Snuff Box
Lateral: APL + EPB
Medial: EPL
Contents: Radial Nerve and Radial Artery
Floor: Scaphoid and Trapezium
What is the function of the Rectus Capitis Major and Minor
Rectus Capitis Major - F - extension of the neck, rotation, lateral flexion (sidebending)
Rectus Capitis Minor - F - extension of the neck
________ can compress median nerve and cause carpal tunnel syndrome
anterior dislocation
Name the borders of the Cubital Fossa:
BONUS: Is the Ulnar nerve a content of the cubital fossa? Explain
Superior: imaginary line between the lateral and medial epicondyle
Lateral: brachioradialis
Medial: pronator teres
Contents: radial nerve, biceps tendon, brachial artery, median nerve
Note: Ulnar Nerve is not a content of the cubital fossa → it sits in a groove posterior to the medial epicondyle
BONUS: Ulnar Nerve is not a content of the cubital fossa → it sits in a groove posterior to the medial epicondyle
Please explain the difference between the hangman fracture and Jefferson fracture
Hangman Fracture → bilateral fracture of the pedicles or laminae of C2
Jefferson Fracture → C1
Erb-Duchenne Paralysis
Waiters Tip
What is the function of both the Obliquus Capitis Inferior and Superior
Superior : lateral flexion (sidebending) of neck
Inferior : F - rotation of the neck
Ligaments of the Vertebral Column:
Costotransverse Ligament
Interspinous LIgament
Supraspinous Ligament
__________________
__________________ (prevents hyperflexion)
__________________ (prevents hyperextension and often damaged in whiplash accidents)
Ligamentum Flavum
Posterior Longitudinal Ligament
Anterior Longitudinal Ligament
Please describe the 3 branches of the axillary artery, and what divides them
divided into 3 regions by pectoralis minor
1st segment: superior thoracic artery
2nd segment: thoracoacromial artery, long thoracic artery
3rd segment: anterior and posterior circumflex artery, subscapular
AA Subluxation →. ____________
occurs from trauma (rupture of cruciform ligament) or RA
Differentiate the Spondylosis, Spondylolysis and Spondylolisthesis
Spondylosis → age related degeneration of the IV discs
Spondylolisthesis → fracture that causes an anterior displacement of the vertebra
Spondylolysis → stress fracture
Levator Scapula
N - C3 and C4
F - elevation of the scapula