Cubital fossa and anterior forearm

Question 1

What vein runs laterally to the cubital fossa

Answer 1

the cephalic vein

Question 2

What vein runs medially to the cubital fossa

Answer 2

the basilic vein

Question 3

Which vein connects the basilic and cephalic vein

Answer 3

the median cubital vein

Question 4

Which nerve runs laterally to the cubital fossa

Answer 4

the lateral cutaneous nerve of the forearm

Question 5

What are the boundaries of the cubital fossa:
- roof
- medial
- lateral

Answer 5

roof = fascia between the lateral and medial epicondyle
medial = pronator teres
lateral = brachioradialis

Question 6

Which artery bifurcates in the cubital fossa and what does it bifurcate into

Answer 6

the brachial artery - into the radial and ulnar

Question 7

What are the main arteries and nerves found in the cubital fossa

Answer 7

median nerve, ulnar artery, radial artery, radial nerve,

Question 8

Where does the ulnar nerve run in regards to the cubital fossa

Answer 8

the ulnar nerve does not enter the cubital fossa, it runs posterior to the medial epicondyle instead

Question 9

State the origin, insertion, innervation and role of pronator teres

Answer 9

origin = humoral head (medial epicondyle) and ulnar head (coronoid process of ulna)
insertion =midshaft of radius at the pronator tuberosity
innervation = median nerve, C6,7
role = pronation

Question 10

State the origin, insertion, innervation and role of flexor carpi radialis

Answer 10

origin = medial epicondyle of humerus
insertion = 2nd and 3rd metacarpals
innervation = median nerve C6,7
role = flexes and abducts the wrist

Question 11

State the origin, insertion, innervation and role of flexor carpi ulnaris

Answer 11

origin = medial epicondyle of humerus
insertion = pisiform carpal bone
innervation = ulnar nerve C7,8,T1
role = flexes and adducts the wrists

Question 12

State the origin, insertion, innervation and role of palmarus longus

Answer 12

origin = medial epicondyle of humerus
inserts = palmar aponeaurosis of the hand
innervation = median nerve C7,8
role = flexor of the wrist

Question 13

State the origin, insertion, innervation and role of the flexor digitorum superficialis muscle

Answer 13

origin = humer-ulnar head (medial epicondyle and coronoid process of ulna) and the proximal anterior 1/2 of the border of the radius
insertion = middle phalanges of 4 fingers
innervation = median nerve C8,T1
role = flexes proximal inter phalangeal joints of digits (PIP)

Question 14

State the origin, insertion, innervation and role of flexor pollicis longus

Answer 14

origin = anterior surface of radius and radial 1/2 of interosseaous membrane
inserts = palmar surface of base of distal phalanx of the thumb
innervated = median nerve C7,8
role = flex ion of the thumb

Question 15

State the origin, insertion, innervation and role of the flexor digitorum profundus

Answer 15

origin = anterior and medial surface of ulnar + anterior and medial 1/2 of interosseous membrane
inserts = distal phalanges of 4 digits
innervated = median nerve innervated the lateral 1/2, ulnar nerve innervated the medial 1/2
role = flexing distal interphalangeal joints of the fingers

Question 16

State the origin, insertion, innervation and role of the pronator quadratus muscle

Answer 16

origin = distal 1/4 of the ulnar
insertion = distal 1/4 of the radius
innervation = median nerve
role = pronation

Question 17

What is the lateral inter muscular septum?

Answer 17

Pass from anterior border of radius to deep fascia surrounding the limb

Question 18

What is the interosseous membrane?

Answer 18

Links adjacent borders of radius and ulnaris and attachment of deep fascia surrounding along posterior border
- Has an an aperture for interosseous artery

Question 19

What are the key features of radius?

Answer 19

Radial tuberosity
Oblique line
A roughening for attachment of pronator teres
Articular facet for Lunate bone
Articular facet for scaphoid bone
Ulnar notch
Skinny proximal
Fatter distal

Question 20

What are the key features of the ulnar?

Answer 20

Orelcon
Coronoid process
Radial notch
Tuberosity of ulnar
Styloid process
Attachment for Articular disc
Roughening for attachment of quadratus pronator
Tophacter notch

Question 21

What extension is on the clavicle?

Answer 21

Conoid process

Question 22

Which muscles of the anterior forearm are in the superficial and deep groups

Answer 22

superficial = pronator teres, flexor carpi radialis/ulnaris, palmarus longus and flexor digitorum superficialis
deep = flexor digitorum profundus, flexor pollicis longus and pronator quadratus