Arm, Forearm, Hand Flashcards
What is another word for the dorsal tubercle of the radius?
Lister’s Tubercle
In the humeroradial joint, the ___________ of the ulna articulates with the head of the radius.
Capitulum
T/F: The head of the radius articulates with the radial notch of the ulna in the distal radioulnar joint.
False: this is the proximal radioulnar joint.
The head of the radius is able to move against the ulna
because the head rotates within the ring formed by the ___________ ligament.
Annular
Preschool kids can get a ‘_____________’ from forceful traction of the pronated forearm
Slipped elbow
What movement is performed by Coracobrachialis along a frontal plane?
G-H adduction
The tendon of biceps brachii (long head) has a sheath to protect it from the _____________ ligament which holds the tendon in place during contraction/movement.
transverse humeral ligament
T/F: when the forearm is supinated, the biceps wraps more than 1⁄2 way around the radius.
False: This is true when the forearm is pronated.
Which muscle is the prime mover for elbow flexion when the elbow is in a pronated position?
Brachialis
Which muscle has an origin at the infraglenoid tubercle?
Triceps brachii (long head)
Which muscle technically part of the forearm but is functionally related to the triceps?
Anconeus
The hand has __ bones, whereas the foot has __
Hand: 27
Foot: 26
Which carpal bone is boat-shaped and most commonly fractured?
Scaphoid
Which carpal bone is moon-shaped and most commonly dislocated?
Lunate
Which carpal bone is pyramid-shaped?
Triquetrum
Which carpal bone is pea shaped and considered a sesamoid bone because it’s completely surrounded by a tendon?
Pisiform
Which carpal bone articulates with the third metacarpal bone?
Capitate
Which carpal bone is easily identified by its anterior projection?
Hamate
the flexor retinaculum attaches laterally to the tubercles of the a) and medially to the b)
a) scaphoid and trapezium
b) hook of the hamate and pisiform
Which carpal bones articulate with the articular disc of the distal radioulnar joint?
The scaphoid, lunate, and triquetrum
What type of joint is the midcarpal joint?
Synovial plane joint
What type of joint is the ulnomeniscotriquetral joint?
A “functional” joint
Which carpal joint articulates with the base of the 1st metacarpal? What type of joint is it?
The trapezium. It’s a saddle joint.
What type of joints are the 2nd-5th carpometacarpal joints ?
Plane joints.
What types of joints are the intermetacarpal joints?
Synovial plane
Between the heads of the medial 4 metacarpals is the ___________________ (this hold the heads together).
deep transverse metacarpal ligament
The metacarpophalangeal joints are this type of joint.
Condoloyd
The interphalangeal joints are this type of joint.
Hinge
The dividing line between the flexor-pronator and the extensor-supinator groups of the forearm is the _______________________
posterior border of the ulna
The common flexor tendon (CFT) attaches to the _________________ of the humerus
Medial epicondyle
Strong connective tissue (CT) that covers the palm of the hand
Palmar aponeurosis
Pronator teres, flexor carpi radialis (FCR), palmaris longus and flexor carpi ulnaris (FCU) are part of the _____________ layer of the anterior forearm
superficial
The radial (brachial) artery is just lateral to this forearm muscle.
Flexor carpi radialis
If palmaris longus is missing, which two muscles compensate?
Flexor carpi radialis and flexor carpi ulnaris
The ulnar nerve passes between the 2 heads of this muscle
Flexor carpi ulnaris
Flexor digitorum superficialis is part of the _____________ layer of the anterior forearm.
Intermediate
T/F: The muscles of the deep layer of the anterior forearm all attach proximally to the humerus.
False, none of them do.
The tendons of which muscle pierce the Flexor Digitorum Superficialis because it is a longer muscle
Flexor digitorum profundus
In which layer of the anterior forearm is pronator quadratus found?
The deep layer.
Flexor digitorum superficialis, flexor digitorum profundus, flexor pollicis longus and the median nerve
all pass through this structure.
The carpal tunnel.
the extensor tendons at the wrist pass under the __________________
extensor retinaculum
The common extensor tendon (CET) which attaches to the __________________ of the humerus
lateral epicondyle
The WAD of 3 consists of:
● Brachioradialis
● Extensor carpi radialis longus
● Extensor carpi radialis brevis
Abductor pollicis longus and extensor pollicis brevis form the borders of the _______________
Anatomical snuffbox
Which intrinsic hand muscle forms the bulk of the thumb web space on the anterior surface opposite the first dorsal interosseous on the posterior surface.
Adductor pollicis
