Where is the radial nerve
- the radial nerve is btwn the brachioradialis and the brachialis muscles.
- It then pierces the supinator as the deep branch of the radial nerve. When it emerges it becomes the posterior intercourse nerve
What are the muscles innervated by the radial nerve?
- Think ABE
- Extensor carpi radilias brevis
Whats does the long head of the biceps do to the humeral joint?
It stabilizes the humeral head
What kind of membrane and joint is the ulna and radius of the forearm?
- A synovial membrane keeps the ulna and radius together
- This is called the intermediate radioulnar joint
What carpal bone articulates with the 1st metacarpal joint ?
Where does the cephalic vein run ?
runs up the arm in to the deltopectoral groove
What does the brachial artery divide into ?
The radial and ulnar artery at the level of the cubital fossa
What is the glenoid labrum ?
It i the cartilaginous structure that encircles the glenoid cavity
Mmeumonic for axillary artery
- Sixities teens love sex and pot
- Superior thoracic
- Thoracacromial which has 4 branches ( cadavers are dead people )
- Lateral thoracic
- Subscapular ( which has 2 branches : circumflex scap. and the thoracodorsal)
- anterior C.H.
- posterior c.h.
Is regards to the extension retinaculum where do the tendon pass?
The tendons of the extensor muscles pass deep to the retaniculum.
In regards to the Posterior compartment the superficial and deep muscle can be grouped into what functions?
- The superficial muslces function in extending the wrist and the digits
- The deep structure supinate and extend specific digits
How do you remember the structure and function of the serratus anterior muscles
- Long hair Serita, she is 19 years old and She is SLT&D.
- She is a stripper pro trackes because of her long hair and she is always sticking out her chest.
- innervation: long thoracic
- action: protract and upwardly rotate
- attachedment: medial border of the scapula and ribs 1-9
How do you remember the action of the pectoralis minor
- He is a poopr minor, you tell her to be proactive ( protract) , but he is depressed.
- p. minor protract and depressed the shoulder at the pectoral girdle.
- aterial supplies are the thoracoacromial and the superior and lateral thoracic
What is a dermatome
region of skin that is innervated by a single spinal nerve at a single spinal level
What dermatome innervated the thumb
The thumb is c6 and rhe next two finger ( digit 2 and 3) are c7 and so forth with digits 4 and 5
After which structre and it borders does the axillary artery turn into the brachial artery
after the later border of the teres major
where does the ulnar collateral artery branch from
The brachial artery
What is the T2 intercostal space
The tickle nerve , give sensory innervation to the arm pit
How do you remember Rhomboid minor and major
- Think of a pirate RRRRR
- They both rotate and retract the scapula.
- The are both innervated by the dorsal scapula
- and attached to the medial border of the scapula and spinous processes
How to remember the innervation and actions of the elevator scapula
- It elevates and retracts ( tilt glenoid ineriorly by rotating the scapula) the scapula
- it is attached to the transverse processes
- and the superior angle of the scapula
- innervated by the dorsal scapular
- Dorsi always elevates her scapula whenever she feels inferior
What are the most immobile types of joints?
- The primary synchondroses
- The secondary are like the vertebral disc which have limited motion s
Which are hypaxial muscles and which are epaxial ?
epaxial muscles are those of the deep back for humans :
- Humans - erector spinae, transversospinal muscles (multifidus, semispinalis and rotatores), splenius and suboccipital muscles.
- epaxial is everything else
Flexor digitorum profundus innervation and how to remember
- What profound flex to be a a mixed kid, you have both of the main innervation of the anterior forearm
- Always going the extra mile
How to remember the attachement of the lumbricals
lumberjack jack is always flexing his profound tendons and
carpis are always attached to the base of the metacarpal
Where do the entensors attach to
all attach to the extensor expansions
where do all longuses go
They all do to the most distal phalanx
They all do to the proximal place on the phalanx
Which of the anterior forearm muscles have two heads
- pronator teres
- flexor digitorum superficialis
- flexor carpi ulnaris
Which muscles are attached to the common extensor tendons
- Chip double dipped cherry
- e. car. rad. brevis
- e. digiti minimi
- e. digitorum
- ex. carpi ulnaris
The palmar interossei
- only attach to 2,4,5 digit.
- I can't believe that inderPam lived to 245
Flexor digitorum superficialis memories
- She is so superficial and two faced, she has two heads
- she is too superficial to got the distance and that is why she split before making it to the distal phalanx. She stops at the proximal and splits
How to remember the innervation for all the muscles of the hand
- all of them are innervated by the deep branch of the ulnar except :
- lumbrical 3 abd 4 and the thenar muscles
how to determine the types of joints
- it is in alphabetical order
- gliding - radius joints
- hinge - ulnar joints
- pivot - both
The Rotator cuff muscles are the sits muscles
What attaches where on the humerus and which muscles do ?
latissimus attached to the floor of the inertubercles sulcus
what does retract mean
retracts is the same things as pulling the scapula back
triangle of ausculatation
- trap superiority
- lat inferiorly
- scapula laterally
- This is where you have less muscles
where do they do spinal taps? and why?
- spinal cord ends at L1-L2 so ththis will not hurt the spinal cord
basilic vein where is it ?
superficial vein that is close to the body ( B for Basilic and body )
what are the contents of the carpal tunnel
- 4 tendons of FDs, 4 tendons of FDP, Median nerve and tendon of the flexor policis longus
- median is btwn FDP and FDS
- to remember that the first half of the lumbrical are innervated by the deep branch of the ulnar nerve
- the other half is the median nerve
run on the ulanr side and under the ulnaris muscles which makes sense
What are the contents of the carpal tunnel ?
- (10 things)
- 4 tendons from the flexor digitorum superficialis and FDP
- 1 tendon from the flexor poilicis longus and the median nerve