Upper limb Flashcards
What nerves are innervated by C5-C6?
Suprascapular
Axillary
Musculocutaneous
What nerve is lost by a C5-C7 lesion?
Long thoracic
What muscles hold the scapula from winging?
Serratus anterior
Latissimus dorsi
What is the innervation of Latissimus doors?
Thoracodorsal C7 C8
What is the innervation of the radial nerve?
C5- T1
What are the signs seen with median nerve damage?
loss of pronation
hand benediction
ape hand
What are the signs of ulnar nerve damage?
claw hand
loss of interossei
What forms the floor and roof of the carpal tunnel ?
roof- flexor retinaculum
floor- lunate carpal bone
What are the signs of carpal tunnel syndrome?
compression of median nerve & digital flexor tendons
- atrophy of thenar muscles
- sensory loss &; tingling of 3 1/2 digits
- dull night pain
What are the composition of the sciatic nerve?
tibial L4-S3
common fibular L4-S3
What nerves are tested with plantar flexion?
S1-S2
What nerves are tested with dorsi flexion?
L4-L5
What does L4-S1 innervate?
Gluteus medius
Gluteus minimus
Eversion musles
What does L5-S2 innervate?
Gluteus maximus
Loss of superior gluteal nerve produces?
Trendelenburg sign- leaning to the other side of the lesion
Foot drop is a defect in
L4- S2
Femoral nerve
L2-L4
Obtruator nerve
L2-L4
Inferior gluteal nerve
L5- S2
Superior gluteal nerve
L4-S1
Sciatic nerve
tibial -L4-S3
common fibular L4-S2
Deep fibular nerve
L4-S2
Superficial fibular nerve
L4-S1
What are the branches off the deep femoral artery ?
lateral and medial circumflex
perforation arteries
Pharyngeal arch 1 gives rise to ?
Mandibular nerve CN 5
Muscles of mastication
Malleus & incus
Mandible & Maxilla
Pharyngeal arch 2 gives rise to ?
Facial nerve CN 7 Facial expression muscles(smiles) Stapedius Stylohyoid stapes , styloid process, lesser & upper hyoid bone
Pharyngeal arch 3 gives rise to ?
Glossopharyngeal n. CN 9
stylopharyngeus
greater &lower hyoid bone
Common and internal carotid
Pharyngeal arch 4 gives rise to ?
Superior laryngeal nerve CN X cricothyroid soft palate pharyngeal muscles thyroid cartilage right subclavian & arch of aorta
Pharyngeal arch 6 gives rise to ?
recurrent laryngeal n. CNX laryngeal muscles laryngeal cartilages right and left pulmonary arteries ductus arteriosus
What does the first cleft form?
external auditory canal
What does the pharyngeal pouches give rise to?
1 & 2 - epithelial lining
3 - inferior parathyroid & Thymus
4- superior parathyroid
What is the sensory innervation for the anterior 2/3 of tongue ?
general : CN 5
taste: CN 7
What is the sensory for the posterior 1/3 of tongue ?
general & taste CN 9
What is the motor function of the tongue ?
CN 12
What is the defect in cleft lip?
maxillary prominence
What is the defect in cleft palate ?
palatine shelves and or primary palate
What nerves are in the cavernous sinus
CN III , IV, VI, V1, V2
What is the defect in dandy walker malformation ?
hypoplasia of the cerebellar vermis
What is the defect in Arnold Chiari ?
herniation of the cerebellar vermis
How does sympathetic innervation get to the head ?
Travels along side the arteries
What mediates anterograde transport
kinesin
What mediates retrograde transport?
dyenin
