CUKC Extremity Quiz 3
Lateral to the lateral septum is the __________________ compartment containing the __________________ muscles
Thenar Thenar
What muscles are innervated by the median nerve in the palm?
Thenar Muscles I and II Lumbricals
Spaces that are bounded by the septa from the edges of the palmar aponeurosis to the metacarpals and are separated by the lateral fibrous septa.
Thenar and Midpalmar Space
The fascia of the palm is thick or thin over the thenar and hypothenar eminences but thick or thin centrally (palmar aponeurosis) and in the fingers where it forms the ______________ sheath.
Thin Thick Digital
The median nerve abuts what ligament as it enters the carpal tunnel radial to the FDS tendons
Transverse Carpal Ligament
The common interosseous trunk is a branch of the
Ulnar Artery
The radial nerve is innervated by what roots
C5-T1
The median nerve includes what roots
C6-C8 and T1
The palmar aponeurosis forms how many longitudinal bands as it radiates distally to the bases of the proximal phalanges.
4
Digital sheaths are composed of how many annular and how many cruciform parts
5 4
The ulnar nerve innervates what digiti minimi muscles
Abductor Digiti Minimi (C8-T1) Opponens Digiti Minimi (C8-T1) Flexor Digiti Minimi (C8-T1)
Compartment that is located deep to the thenar space superficial to the interossei muscles, it contains the adductor pollicis.
Adductor
The superficial branch arborizes over the ____________ ______________ ____________ to supply the skin on the dorsum of the hand lateral to the axis of the ________ digit.
Anatomical Snuff Box 4th
The fascia of the hand is continuous with the _______________________ fascia and the ________________ fascia of the hand.
Antebrachial and Dorsal
While the radial nerve is a posterior compartment structure, the radial artery is an __________________ compartment structure.
Anterior
Branch of the median nerve, in the distal cubital fossa median gives off the AIN as it emerges from beneath the Pronator Teres.
Anterior Interosseous Nerve
The ulnar artery is a short stump that branches to form the:
Anterior and Posterior Interosseous Artery
Passes distally on the anterior surface of the interosseous membrane between the FDP and FPL, proximal to the pronator quadratus it pierces the membrane to enter the posterior compartment and join the dorsal carpal arch.
Anterior interosseous artery
Deep veins of the forearm accompany the what and freely __________________ with the superficial veins.
Arteries Anastomose
The brachial artery lies beneath what and is anterior to what?
Bicipital Aponeurosis Biceps Tendon
Motor supply to the BR and ECRL derive from the radial nerve prior to its ________________________.
Bifurcation
Forms as a direct continuation of the brachial artery, descends distally deep to the pronator teres, palmaris longus and the flexor digitorum superficialis to reach the medial aspect of the forearm near the wrist.
Bifurcation and Ulnar Artery
The radial and ulnar are terminal branches of what?
Brachial Artery
The ulnar is a direct continuation of what artery and is smaller or larger than the radial branch
Brachial Artery Larger
The radial branch of the brachial artery projects laterally over the supinator to run beneath the
Brachioradialis
The radial nerve enters the cubital fossa between the ______________________ and the ________________ muscles, anterior to the lateral epicondyle it divides into deep and superficial branches
Brachioradialis Brachialis
Muscles innervated by the radial nerve in the forearm?
Brachioradialis Extensor Carpi Radialis Longus Extensor Carpi Radialis Brevis (Deep Branch) Supinator (Deep Branch) Extensor Carpi Ulnaris (PIN) Extensor Digiti Minimi (PIN) Extensor Digitorum (PIN) Abductor Pollicis Longus (PIN) Extensor Pollicis Brevis (PIN) Extensor Pollicis Longus (PIN) Extensor Indicis (PIN)
The midpalmar space function as
Bursa
Ulnar nerve is what nerve roots?
C8 and T1
The midpalmar space is continuous with the anterior compartment of the forearm via
Carpal Tunnel
Compartment that exists between the medial and lateral compartments and contains the flexor tendons and their sheaths, the lumbricals, the superficial palmar arterial arch and digital nerves and arteries.
Central
Superficial veins of the forearm?
Cephalic Basilic Median Cubital
1st large branch of the ulnar distal to the bifurcation of the brachial artery passes deep and lateral and bifurcates into the anterior, posterior, and recurrent
Common
The median nerve enter the ______________ ________________ medial to the brachial artery, exits between the heads of the ________________ _______________
Cubital Fossa Pronator Teres
What branch of the radial nerve is motor, exits the cubital fossa winding around the radial neck to pierce and supply the supinator. It winds around the lateral neck of the radius while in the supinator and emerges in the posterior compartment as the ____________.
Deep Branch/Posterior Interosseous Branch (PIN)
Depuytren's fasciitis has been associated with ___________________ and can be seen in alcoholics with __________________ of the liver
Diabetes Cirrhosis
Branch of the ulnar nerve that forms in the distal 1/2 of the forearm between the ulna and FCU, enters the subcutaneous tissue on the dorsum of the hand medial to the axis of the 4th digit.
Dorsal Cutaneous
A disease of the palmar fascia resulting in progressive thickening and contracture of the fibrous bands on the palmar surface of the hands and fingers
Dupuytren's Fasciitis and Contracture
The smaller terminal branch of the brachial artery, runs inferolaterally beneath the brachioradialis medial to the ________ tendon on top of the supinator, distal pronator teres and FDS, transverses around the lateral aspect of the radius to pass through the ________________ ________________ __________________.
FCR Anatomical Snuff Box
Pulsations of the ulnar artery can be palpated on the lateral side of what tendon?
FCU
The ulnar nerve enters the forearm between the humeral and ulnar head of the ____________ from posterior of the medial _____________________
FCU Epicondyle
The ulnar supplies motor in the forearm to the: __________, Ulnar 1/2 __________ (digits 4 and 5). It supplies what muscles of the hand?
FCU Intrinsic
The median nerve supplies the superficial (except ___________), intermediate and deep flexors (except _____________ 1/2 ___________) (Via the _________________ interosseous nerve)
FCU Ulnar 1/2 FDP Anterior
The ulnar nerve descends between the ___________ and __________ and becomes superficial in the distal forearm with the _____________ artery.
FCU and FDP Ulnar
Classically the AIN supplies what:
FPL 1/2 FDP (digits 2 and 3) Pronator Quadratus
Ligamentous tube that encloses the synovial sheaths of both the deep and superficial flexor tendons and the FPL tendon
Fibrous Digital Sheaths
The ulnar nerve innervates what muscles in the forearm:
Flexor Carpi Ulnaris (C7-T1) Flexor Digitorum Profundus IV and V (C7-C8)
The palmar aponeurosis is continuous with what
Flexor Retinaculum and Palmaris Longus Tendon
Patients with supinator syndrome have pain and tenderness in the proximal _________________ during activity and may have some degree of finger _______________ weakness compared to the normal arm. What should not be present?
Forearm Extension Numbness
Where does Depuytren's Fasciitis most often occur
Fourth and Fifth Digits
The ulnar artery passes superficially to the flexor retinaculum with the ulnar nerve in the ____________ _______________ to enter the hand.
Guyon Canal
Depuytren's Fasciitis is a common problem and usually arises in the _______________ of middle-aged persons; however it can be seen as early as the ______________________.
Hands Twenties
Medial to the fibrous septum is the _____________________ compartment containing the ___________________ muscles
Hypothenar Hypothenar
The ulnar nerve innervates what muscles in the palm:
Hypothenar muscles (C8-T1) Adductor Pollicis (C8-T1) Flexor Pollicis Brevis (C8-T1)
Fasciitis implies _____________________ of the fascia and contracture implies __________________ and ____________________ of the diseased fascia.
Inflammation Thickening and Tighteninig
The PIN descends with what artery and runs between the deep and superficial extensors.
Interosseous Artery
The distal extension of the musculocutaneous branch. Emerges lateral to the biceps on the brachioradialis, initially runs with the cephalic vein and descends on the lateral forearm to the wrist
Lateral Cutaneous
Septum that extends from the lateral border of the aponeurosis to the 3rd metacarpal.
Lateral Fibrous Septum
Branches off the Cords of the brachial plexus that provide sensory innervation to the forearm
Long Descenders
From the medial cord, pierces the brachial fascia with the basilic vein to run subcutaneously on the medial forearm to the wrist
Medial Antebrachial Cutaneous
Tough septum in the hand that extends from the medial border of the palmar aponeurosis to the 5th metacarpal
Medial Fibrous Septum
The brachial artery enters the cubital fossa lateral to what nerve
Median
A strong well-defined deep fascial structure
Palmar Aponeurosis
Branch of the ulnar nerve that forms in the mid-forearm anterior to the ulnar artery and perforates the deep fascia in the distal forearm to enter the subcutaneous palmar tissue, medial to the 4th digit.
Palmar Cutaneous
Emerge at the mid-distal forearm proximal to the flexor retinaculum; it crosses the retinaculum to the skin of the central palm. What branch of the median nerve?
Palmar Cutaneous
The ulnar nerve innervates what finger muscles
Palmar Interosseous (C8-T1) Dorsal Interosseous III and IV Lumbricals
The median nerve descends in the fascial plane between the FDS and FDP, deep to the ________________ ________________ tendon and the flexor retinaculum to the ______________ ____________________.
Palmaris Longus Carpal Tunnel
The radial recurrent branch forms part of the ________-_________________ anastomotic system.
Peri-Articular
The ulnar nerve proceeds on the surface of the transverse carpal ligament lateral to the _________________ and medial to the hook of hamate in _________________ _________________ then splits into a deep and superficial branch.
Pisiform Guyon's Canal
The AIN runs on the anterior interosseous membrane with the artery between the FDP and FPL and innervates the ________________ _____________________
Pronator Quadratus
The median nerve sends branches to the ______________ ________________ as it passes the elbow, it send branches to the ______________ and palmaris longus proximal to the ___________.
Pronator Teres FCR FDS
Classically the median supplies:
Pronator Teres FDS FCR Palmaris Longus
What muscles are innervated by the median nerve in the forearm?
Pronator Teres Flexor Carpi Radialis Palmaris Longus Flexor Digitorum Superficialis Flexor Digitorum Profundus (AIN) (Digits 2 and 3) Flexor Pollicis Longus (AIN) Pronator Quadratus (AIN)
The main arteries of the forearm are what?
Radial and Ulnar
Arises from the lateral side of the radial artery just distal to the bifurcation of the brachial artery, ascends between the brachialis and brachioradialis muscles to meet the radial collateral branch of the Profunda Brachii Artery.
Radial recurrent branch
Passes superiorly to the radioulnar joint to anastomose with the middle collateral branch of the Profunda Brachii Artery.
Recurrent Interosseous
What branch of the radial nerve is sensory in the cubital fossa runs between the pronator teres and the brachioradialis.
Superficial Branch
Depuytren's fasciitis is more common in men or women and does or does not run in families
Women Does
The PIN controls finger extension, and to a small degree, _____________ extension.
Wrist
Branches off the radial nerve as it descends in the radial canal, perforates the lateral head of the triceps to run subcutaneously on the lateral aspect of the arm to the forearm and wrist
Posterior Cutaneous
The __________________ __________________ artery supplies the posterior compartment in the forearm.
Posterior Interosseous
Passes posterior to the interosseous membrane sometime giving off the recurrent interosseous artery, then distally runs between the deep and superficial extensors.
Posterior Interosseous Artery
Deep branch of the radial nerve pierces the ________________ muscle and exits at the distal border where it changes names to the PIN.
Supinator
What is it called when the posterior interosseous nerve may be compresses where it passes through the supinator muscle in the proximal forearm.
Supinator Syndrome
