Lab 3 Flashcards
Where is the cephalic vein?
20
triceps brachii, radial nerve
Where is the median cubital vein?
19
How do you determine if you are looking at a right or left ulna?
Put fingers in trochlear notch, whichever side radial notch is on, that is the side of the bone.
basilic vein
Where is the flexor carpi radialis muscle? List the origin, insertion, innervation, blood supply and action.
Origin: medial epicondyle
Insertion: base of 2nd and 3rd metacarpal
Innevation: median nerve
Blood supply: radial artery
Action: flexion at wrist and abduction of the hand
flexor digitorum superficialis, middle phalanges of medial 4 digits
ulnar notch, right
Where is the radial and ulnar arteries?
What muscle is this? List the origin, insertion, innervation, blood supply and action.
Pronator Quadratus
Origin: distal fourth of anterior surface of ulna
Insertion: distal fourth of anterior surface of radius
Innervation: anterior interosseous nerve
Blood supply: anterior interosseous artery
Action: pronation of the forearm
olecranon fossa
Where is the anterior and posterior circumflex humeral arteries?
anterior - coming to front
posterior - going to back
flexor pollicis longus, anterior interosseous nerve
Where is the brachioradialis muscle? List the origin, insertion, innervation, blood supply, and action.
Origin: proximal 2/3 of lateral supracondylar ridge
Insertion: lateral surface of distal end of radius
Innervation: radial nerve
Blood supply: radial recurrent artery
Action: flexion of forearm
hinge
Where is the median antebrachial vein?
16
Where is the coracobrachialis muscle? What is the origin, insertion, innervation, blood supply, and action of this muscle?
Origin: Coracoid process
Insertion: middle third of medial surface of humerus
Innervation: musculocutaneous
Blood supply: brachial artery
Action: flexion and adduction at shoulder
Where is the anterior interosseous, posterior interosseous, and common interosseous arteries?
anterior - 10
posterior - 11
common - where they meet
What is the (i) functional and (ii) structural classification of the humeral-radial joint?
(i) uniaxial
(ii) hinge
Label the muscles you see.
Where is the flexor digitorum superficialis muscle? List the origin, insertion, innervation, blood supply and action.
Origin
- humeroulnar head: medial epicondyle and coronoid process of ulna
- radial head: anterior oblique line of radius
Insertion: middle phalanges of medial four digits
Innervation: median nerve
Blood supply: ulnar artery
Action: flexion at medial 4 proximal interphalangeal joints, flexion at metacarpophalangeal joints, flexion of the hand
Where is the flexor pollicis longus muscle? List the origin, insertion, innervation, blood supply and action.
Origin: anterior surface of radius and interosseous membrane
Insertion: base of distal phalanx of 1st digit
Innervaton: anterior interosseous nerve
Blood supply: anterior interosseous artery
Action: wrist flexion, flexion of metocarpopalangeal and interphalangeal joint of 1st digit
ulnar tuberosity, right
flexor carpi ulnaris, flexion at wrist and adduction of hand
What is the (i) functional and (ii) structural classification of the humeral-ulnar joint?
(i) uniaxial
(ii) hinge
Where is the brachialis muscle? List the origin, insertion, innervation, blood supply and action.
Origin: distal half of anterior surface of humerus
Insertion: coronoid process and ulnar tuberosity
Innervation: musculocutaneous
Blood supply: radial recurrent artery
Action: flexion of forearm
capitulum, left
Where is the biceps brachii muscle? List the origin, insertion, innervation, blood supply and action.
Origin:
- short head: coracoid process
- long head: supraglenoid tubercle
Insertion: radial tuberosity and fascia of forearm
Innervation: musculocutaneous
Blood supply: brachial artery
Action: flexion of forearm, supination of forearm
Where is the palmaris longus? List the origin, insertion, innervation, blood supply and action.
Origin: medial epicondyle
Insertion: flexor retinaculum, palmar aponeurosis
Innervation: median nerve
Blood supply: ulnar artery
Action: flexion at the wrist, tightening of aponeurosis
Where is the triceps brachii muscle? List the origin, insertion, innervation, blood suppy, and action.
Origin
- long head: infraglenoid tubercle
- lateral head: posterior surface superior to the radial groove
- medial head: posterior surface inferior to the radial groove
Insertion: proximal end of olecranon
Innervation: radial nerve
Blood supply: deep brachial artery
Action: extension of forearm
How do you determine if you are looking at a left or right radius?
Put your thumb on the smooth side of the end the styloid is on. Whichever side the styloid is pointing to, that is the side of the bone.
coracobrachialis, brachial artery
Where is the deep brachial artery?
4
Where is the flexor digitorum profundus muscle? List the origin, insertion, innervation, blood supply, and action.
Origin: proximal 3/4 of medial and anterior surfaces of ulna and interosseous membrane
Insertion: base of distl phalanx of medial 4 digits
Innervation: medial part = ulnar nerve, lateral part = median nerve
Blood supply: anterior interosseous artery
Action: flexion at distal interphalangeal joints, assits with flexion at the wrist
Where is the flexor carpi ulnaris muscle? List the origin, insertion, innervation, blood supply, and action.
Origin: olecranon and posterior border of ulna
Insertion: pisiform, hook of hamate, 5th metacarpal
Innervation: ulnar nerve
Blood supply: ulnar artery
Action: flexion at the wrist, adduction of the hand
glenoid cavity
pronator teres, middle lateral 3rd of radius
flexor digitorum profundus, anterior interosseous artery
ulnar artery
Where is the pronator teres muscle? List the origin, insertion, innervation, blood supply, and action.
Origin: medial epicondyle of humerus, coronoid process of ulna
Insertion: pronator tuberosity
Innervation: median nerve
Blood supply: ulnar artery, radial artery
Action: pronation and flexion of forearm
What is the (i) functional and (ii) structural classifcation of the proximal radioulnar joint?
(i) uniaxial
(ii) pivot
