Font size
WorksheetsLecture 13: Elbow, Cubital Fossa, and Forearm
Total questions: 79
Worksheet time: 54mins
A "power joint" that is formed from a 3 joint complex that is important in lifting
(a)
Functions of the elbow
flexion
extension
adduction
rotation
Identify the highlighted structure
Humerus
Radius
Ulna
Femur
Identify the highlighted structure
Femur
Ulna
Radius
Humerus
Identify the highlighted structure
Forearm Connective Tissue
Interosseus Membrane
Tibial Plateau
Costal Cartilage
Identify the highlighted structure
Triceps Brachii
Biceps Brachii
Brachioradialis
Anconeus
Identify bone marking of the humeroulnar joint
trochlear notch
trochlea
olecranon fossa
olecranon process
Which number represents the medial epicondyle?
2
3
4
10
9
Which number represents the trochlear notch?
8
7
3
10
2
Which number represents the head of the ulna?
8
7
3
9
2
Which number represents the olecranon fossa?
8
7
3
10
2
Name this movement
ulnar deviation
supination
pronation
radial deviation
What is the name of the action where the palm of the hand turns from anteriorly to posteriorly.
Pronation
Supination
Plantar flexion
Flexion
Identify bone marking #6
trochlea
trochlear notch
olecranon process
olecranon fossa
head of radius
Identify bone marking #5
trochlea
trochlear notch
olecranon process
olecranon fossa
head of radius
coronoid fossa
trochlea
deltoid tuberosity
Green marking is the:
trochlea
olecranon fossa
capitulum
coronoid process
What is number 1?
olecrannon process
ulna
radius
radial styloid process
What is number 3?
ulna
radius
ulnar styloid process
radial styloid process
What is number 4?
radius
ulna
ulnar styloid process
radial styloid process
What is number 6?
radial notch
radial styloid process
ulnar styloid process
head of radius
Bottom left marking of the radius is the:
Ulnar notch
radial notch
Tuberosity of radius
Tuberosity of ulna
Coronoid process
Radial Notch
ulna fossa
radial notch
styloid process
tuberosity of ulna
The acceptance of the coronoid process of the ulna into the coronoid fossa of the humerus allows for full____________ of the elbow.
rotation
extension
flexion
adduction
The normal range of motion for elbow flexion is (a) degrees.
This joint is created by the surrounding joint capsule from the humeralulnar joint but is not really a functional joint.
(a)
Insertion of biceps brachii
(a)
Insertion of brachialis
(a)
The capitulum is lateral to the trochlea.
True
False
Which is true of the proximal radioulnar joint?
facilitates supination and pronation
facilitates flexion and extension of the wrist
facilitates adduction and abduction of the antebrachium
Describes how the distal segment of the upper limb points out to the side
(a)
This refers to the lateral angle of the arm and forearm that is usually around 10-15 degrees.
carrying angle
175 degrees in males
170 degrees in females
cubitis varus
This can happen as a result of an epicondylar fracture when the angle of the brachium and antebrachium points interiorly. It may also be called a "gunstock" deformity.
(a)
Volar is another word for the ____ aspect of the forearm.
anterior
posterior
The humeroulnar joint is a (a) joint.
The articular capsule of the elbow is thinner
anteriorly
posteriorly
This muscle is a small muscle attaching to the articular capsule of the elbow and the ulna. Its function is to pull the articular capsule out while the elbow extends.
(a)
The origin of the anconeus muscle
lateral epicondyle
medial epicondyle
coronoid process
capitulum
One insertion of anconeus muscle
(the other insertion is that the deep fibers insert into the articular capsule of the elbow)
medial epicondyle
lateral epicondyle
posterior ulna
anterior ulna
Innervation of anconeus muscle
(a)
The anconeus also assists the triceps brachii in _____ the elbow.
extending
flexing
These ligaments strengthen the articular capsule of the humeroulnar joint.
ulnar (medial) collateral ligament
radial (lateral) collateral ligament
interosseous membrane
oblique cord
Baseball pitchers often blow out this ligament. It is triangular shaped and supports the medial aspect of the articular capsule of the radioulnar joint.
unlar collateral ligament
radial collateral ligament
Attaches the medial epicondyle of the humerus to the coronoid process of the ulna.
anterior part of ulnar collateral ligament
middle part of ulnar collateral ligament
posterior part of ulnar collateral ligament.
Attaches the medial epicondyle of the humerus to the trochlear notch of the ulna
anterior part of ulnar collateral ligament
posterior part of ulnar collateral ligament
middle part of ulnar collateral ligament
Attaches the olecranon process of the ulna to the coronoid process of the ulna.
posterior part of the ulnar collateral ligament
anterior part of the ulnar collateral ligament
middle part of the ulnar collateral ligament
This cord-like, rod-shaped ligament attaches the lateral epicondyle of the humerus to the annular ligament and supports the articular capsule of the humeroulnar joint.
(a)
Elbow flexors
biceps brachii
brachialis *BEST FLEXOR
pronator teres
brachioradialis
anconeus
The brachioradialis is located in the posterior compartment of the arm and is innervated like an extendor (radial n.), but it is an elbow flexor.
True
False
Elbow extensors
triceps brachii
brachioradialis
pronator teres
brachialis
anconeus
This vein joins the cephalic and basilic veins
VENIPUNCTURE VEIN
(a)
The proximal border of the cubital fossa in the line conneting the two (a) of the humerus
lateral broder of cubital fossa
(a)
medial border of cubital fossa
(a)
The brachialis and the (a) create the floor of the cubital fossa
Contents of the cubital fossa
median cubital vein
brachial artery
musculocutaneous nerve
median nerve
radial nerve
This structure anchors the tendon of the biceps brachii to the fascia of the forearm
(a)
The musculocutaneous nerve branches to form the
lower subscapular nerve
lateral antebrachial cutaneous nerve
lateral thoracic nerve
inferior antebrachial cutaneous nerve
In this position the radius and the ulna are parallel
supination
pronation
In this position the radius pivots around the stationary ulna to form an X
(a)
The radial nerve splits when it passes the cubital fossa, creating the superficial radial nerve, which supplies __________________
general sensation
motor innervation of the deep muscles of the posterior forearm
motor innervation of the deep muscles of the anterior forearm
The radial nerve splits when it passes the cubital fossa, creating the deep radial nerve, which supplies __________________
general sensation
motor innervation of the deep muscles of the posterior forearm
motor innervation of the deep muscles of the anterior forearm
When the deep radial nerve pierces the supinator, it becomes the (a) .
The deep radal nerve becomes the posterior interosseous nerve at the
cubital fossa
canal of Frohse
supinator canal
bicipital groove
The proximal radioulnar joint is a (a) joint.
The joint between the radial head and the radial notch of the ulna
MRJ: medial radioulnar joint
DRJ: distal radioulnar joint
PRJ: proximal radioulnar joint
The joint between the shafts of the radius and ulna
MRJ: middle radioulnar joint
DRJ: distal radioulnar joint
PRJ: proximal radioulnar joint
The joint is the sight of the rotation of the radius around the head of the ulnar.
MRJ: medial radioulnar joint
DRJ: distal radioulnar joint
PRJ: proximal radioulnar joint
The middle radioulnar joint is a (a) joint.
This ligament encircles and holds the radial head within the ulna, allowing the radius to produce pronation of the forearm. It is also the sight of attachment for the lateral (radial) collateral ligament.
(a)
This is a slender ligament that extends from the lateral border of the ulnar tuberosity to the radial shaft distal of the radial tuberosity. It is taught in supination and relaxed in pronation. We are unsure of the function
(a)
The anterior and posterior radioulnar ligaments are continuations of the joint capsule of the _________ joint.
proximal radioulnar
distalradioulnar
middle radioulnar
This forms the articular disk of the DRJ to keep the joint from getting worn out. It is attached to the styloid process of the ulna and the distal end of the radius.
(a)
Attaches shafts of radius and ulna.
Also is a site of attachment for some deep muscles of the forearm.
(a)
The distal and proximal radioulnar joints are ________ joints.
pivot
saddle
hinge
gliding
Medial epicondylitis causes
golfers elbow
tennis elbow
This nerve passes through the cubital tunnel at the ulnar notch and olecranon process, NOT the cubital fossa. Hitting it causes cubital tunnel syndrome.
(a)
This is caused by lateral epicondylitis and impacts the common extensor tendon and the lateral epicondyle
gold elbow
tennis elbow
