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Gross anatomy module 3 > arm and elbow > Flashcards

arm and elbow Flashcards

1
Q

The capitulum is a condyle on the humerus, what does it articulate with?

A

the radius

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2
Q

The trochlea is a condyle on the humerus, what does it articulate with?

A

with the ulna

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3
Q

What do the medial and lateral epicondyles do in the humerus?

A

serve as muscle attachment

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4
Q

What are the three fossae of the humerus?

A

Olecranon fossa(big next to trochlea)
Coronoid(near trochlea)
Radial ( near capitulum)

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5
Q

What are the four structures on the radius you need to know?

A

head of radius
neck of radius
radial tuberosity
styloid process

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6
Q

what are the four structures of the ulna that you need to know/

A

Olecranon process
trochlear notch
coronoid process
styloid process

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7
Q

What is the humeroulnar articulation and what does it do?

A

it is a hinge joint that does flexion and extension

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8
Q

What is the humeroradial articulation and what does it do?

A

it is a MODIFIED hinge
it does flexion and extension
and supination and pronation

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9
Q

What is the proximal radioulnar articulation and what does it do?

A

Its a pivot joint

it does supination and pronation

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10
Q

What is the Distal Radioulnar joint and what does it do?

A

its a pivot joint

It does supination and pronation

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11
Q

What is the annular ligament?

what does it do?

A

Its a supporting structure that encircles the head of the radius, holds the head of the radius against the ulna. It protects against distal dislocation of the radius

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12
Q

What is the Lateral collateral ligament and what does it do?

A

It is from the lateral epicondyle to annular ligament of radius
it protects against medial deviation from forearm
taut in full extension

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13
Q

What is the Medial collateral ligament and what does it do?

A

Its from the medial epicondyle of humerus to coronoid process and olecranon process
protects against lateral deviation of forearm

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14
Q

Ulnar collateral ligament reconstruction nis a surgical graft procedure in which the UCL is replaed with a tendon from

A

elsewhere in the body

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15
Q

What does the olecranon process do during extension?

A

It is in close approximation to distal humerus in the olecranon fossa

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16
Q

what does the olecranon process do in flexion?

A

It pulls away from distal humerus, as coronoid process and radius approach their respective fossae

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17
Q

What occurs during supination? What joints does it include?

A

the radial head spins on the capitulum. The Humeroradial joint and proximal and distal radioulnar joints are involved

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18
Q

In Pronation the ____ rotates over the ______

A

radius rotates over ulna

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19
Q

which anterior compartment muscles act on the elbow? What innervates them?

A

biceps brachii
brachialis
Musculocutaneus nerve

20
Q

Which posterior compartment muscles act on the elbow? What innervates them?

A

Triceps brachii
Anconeus
Brachioradialis
Radial nerve

21
Q

What are the attachments of the short head of the Biceps Brachii?

A

coracoid process of scapula

radius via bicipital aponeurosis

22
Q

What are the attachments of the Long Head of the biceps brachii?

A

Supraglenoid tubercle

radius via bicipital aponeurosis

23
Q

What is the action of the biceps?

A

flexes elbow and humerus, supinates forearm

24
Q

what is the innervation of the biceps brachii?

A

musculocutaneus nerve

25
Q

What are the attachments of the Brachialis muscle?

A

distal anterior humerus

coronoid process of the ulna

26
Q

What is the action of the brachialis muscle?

A

flexes forearm

27
Q

What is the innervation of the brachialis?

A

musculocutaneous nerve

28
Q

What are the attachments of the triceps brachii?

A

Long head: infraglenoid tubercle
Lateral head: posterior superior humerus
Medial head: olecranon of ulna
All heads: Olecranon of ulna

29
Q

What is the action of the Triceps Brachii?

A

extend elbow

30
Q

What is the innervation of the Triceps brachii?

A

Radial nerve

31
Q

What are teh attachments of the Anoconeus?

A

lateral epicondyle of humerus

olecranon of ulna

32
Q

what is the action of the Anoconeus?

A

Extends the forearm

33
Q

what is the innervation of the anoconeus?

A

radial nerve

34
Q

What are the attachments of the Brachioradialis?

A

lateral portion of distal humerus

lateral, distal radius

35
Q

What is the action of the Brachioradialis?

A

flexes elbow

36
Q

What is the innervation of the brachioradialis?

A

radial nerve

37
Q

What are the attachments of the supinator?

A

lateral epicondyle of humerus and proximal ulna

proximal radius

38
Q

What is the action of the Supinator?

A

supinates forearm

39
Q

What is the innervation of the Supinator?

A

radial nerve

40
Q

What are the attachments of pronator teres?

A

coronoid process and medial epicondyle

lateral surface of radius

41
Q

What is the action of Pronator Teres?

A

pronates and flexes forearm

42
Q

What is the innervation of Pronator teres?

A

median nerve

43
Q

What are the attachments of pronator Quadratus?

A

Distal anterior Ulna

distal anterior radius

44
Q

What is the action of Pronator Quadratus?

A

pronates forearm

45
Q

What is the innervation of Pronator Quadratus?

A

median nerve

Gross anatomy module 3 (7 decks)

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