Anatomy

Question 1

Muscles of the thenar eminence

Answer 1

OAF
Opponens policis
Abductor pollicis brevis
Flexor pollicis brevis

Question 2

Muscles of the thenar eminence

Answer 2

OAF
Opponens policis
Abductor pollicis brevis
Flexor pollicis brevis

Question 3

Muscles of the hyphothenar eminence

Answer 3

OAF
Opponens digiti minimi
Abductor digiti minimi
Flexor digiti minimi

Question 4

Innervation of the rotator cuff muscles

Answer 4

Supraspinatous and infraspinatous - supeascapular nerve
Teres minor - axillary nerve (c5, c6)
Subscapsularis - subscapular nerve

Question 5

What nerve may be damaged with a supeacondylar fracture of the humerus?

Answer 5

Median nerve

Question 6

What nerve may be damaged with a hammate fracture

Answer 6

Ulnar nerve

Question 7

What nerve may be damaged with a lunate fracture

Answer 7

Median

Question 8

Functions of the rotator cuff muscles

Answer 8

Supraspinatous - abducts
Infraspinatous - internally rotates
Teres minor - adducts and externally rotates
Subscapsularis - adducts and externally rotates

Question 9

Function and innervation of the lumbricals of the hand

Answer 9

1st/2nd median, 2nd/3rd ulnar
Flex MCP, extend PIP and extends DIP

Question 10

Functions of the interossei

Answer 10

DAB & PAD
Dorsal interossei abducts
Palmar interossei adducts

Question 11

Mnemonic for divisions of brachial plexus

Answer 11

Remember - roots
To - trunks
Drink - divisions
Cold - cords
Beer - branches

Question 12

Roots of the main nerves of the brachial plexus

Answer 12

Axillary c5, c6
Muscle cutaneous c5, c6, c7
Median c5-t1
Radial c5- t1
Ulnar c8-t1
Recurrent branch of median nerve c5,c6,c7

Question 13

Flexors of the hip

Answer 13

Rectus femoris, illiopsoas, sartorius, pectineus, TFL

Question 14

Muscles for external rotation of the hip

Answer 14

Illiopsoas, gluteus maximus, piriformis, obturator internus and extents

Question 15

Origin and insertion of the ACL and PCL of the knee

Answer 15

LAMP
Lateral femoral condyl to anterior tibia
Medial femoral condyl to posterior tibia

Question 16

Sensory and muscle innervation of the common fibular (peroneal) nerves

Answer 16

Superficial- lateral leg and dorsum of foot except web space. Supplies the peroneus/fibularis longus and brevis

Deep- web space. Supplies the tibialis anterior

Question 17

Movement of the tibial nerve

Answer 17

Plantar flexes and inverts foot

Question 18

Movement of the peroneal nerve of the leg

Answer 18

Dorsiflexes and every

Question 19

Innervation of superior gluteal nerve

Answer 19

Gluteus medius and minimus
TFL

Question 20

Innervation of the obturator nerve

Answer 20

Adductor longus, brevis and Magnus
Obturator externus
Gracillus
Pectineus

Question 21

Innervation of the femoral nerve

Answer 21

Quadriceps
Illicus
Sartorius
Pectineus

Question 22

Nerve supply to the tibialis anterior

Answer 22

Deep peroneal nerve

Question 23

What exactly creates the carpal tunnel?

Answer 23

Transverse carpal ligament and the carpal bones

Question 24

What exactly creates the carpal tunnel?

Answer 24

Transverse carpal ligament and the carpal bones

Question 25

Is sensation affected in carpal tunnel?

Answer 25

No because the palmar cutaneous branch of the median nerve exits prior to the carpal tunnel

Question 26

Muscles involved including sheath in de-quervains tenosynovitis?

Answer 26

Non-inflammatory thickening of the extensor pollicis brevis and abductor pillicis longus within the extensor retinaculum

Question 27

innervation of short and long heads of biceps femoris

Answer 27

short head - common peroneal branch of sciatic nerve
long head - tibial branch of sciatic nerve

Question 28

Tendons involved in de quervains tenosynovitis

Answer 28

Extensor pollicis brevis
Abductor pollicis longus

Question 29

what nerve supplies the stylopharyngeous muscle and the pharyngeal branch is originates from

Answer 29

3rd glossopharyngeal
4th pharyngeal arch

Question 30

nerve that supplies intrinsic muscles of the larynx and the pharyngeal arch they are derived from

Answer 30

all innervated by recurrent laryngeal except cricothyroid which is superior laryngeal nerve (both branche sof vagus)
recurrent - 6th pharyngeal arch
superior - 4th pharyngeal arch

Question 31

what collateral arteries ensure good supply of the hand when either the radial or ulnar arteries are compromised?
what artery are these collateral arteries a branch of?

Answer 31

superficial and deep palmar arteries
superficial - ulnar artery
deep - radial artery

Question 32

what artery is responsible for avascular necrosis in hip fractures

Answer 32

medial femoral cirumflex artery

Question 33

inability to initiate shoulder abduction - what muscle is injured? what nerve is it supplied by?

Answer 33

supraspinatous
suprascapular nerve

Question 34

innervation of rotator cuff muscles

Answer 34

supra and infraspinatous - suprascapular nerve
subscapsularis - subscapsular nerve
teres minor - axillary

Question 35

muscles of mastication, action and nerve innervation

Answer 35

medial pterygoid, temporalis, masseter - close the jaw
lateral pterygoid opens jaw
all innervated by mandibular branch of trigeminal (V3)

Question 36

muscles that insert into the lesser trochanter

Answer 36

illiopsoas

Question 36

muscles that insert onto the greater trochanter

Answer 36

gluetus medius and minimus
obturator internus

Question 36

insertion point of the quadriceps muscles

Answer 36

patellar tendon

Question 36

the sciatic nerves passess between what 2 muscles as it exits its origin

Answer 36

piriformis and superior gemellus

Question 37

muscles of the tongue and their innervation

Answer 37

genioglossus
hyoglossus
styloglossus
palatoglossus

genio, hyo, styo = hypoglossal
palato = recurrent laryngeal –> vagus

Question 38

muscle responsible for opening the jaw

Answer 38

temporalis

Question 39

muscle responsible for closing the jaw

Answer 39

masseter

Question 40

muscle responsible for jaw protrusion

Answer 40

lateral pterygoid