MSK (Dr. A) Flashcards
Spinal level/location of:
Hyoid bone
Cricoid cartilage
Thyroid cartilage
Medial end of clavicle
Root of spine of scapula
Inferior angle of scapula
Highest point of iliac crest
PSIS
Hyoid bone (C2-C3)
Cricoid cartilage (C6)
Thyroid cartilage (C4/C5)
Medial end of clavicle (distal end of 1st rib)
Root of spine of scapula (T3)
Inferior angle of scapula (T7 standing/T6 prone)
Highest point of iliac crest (L4 SP)
PSIS (S2)
Spinal level/location of:
End of spinal cord (cona medullaris)
Subarachnoid space with CSF
Sternal angle
Xiphoid-sternal junction
Lung apex
Termination of abdominal aorta
End of spinal cord (L2)
Subarachnoid space with CSF (S3)
Sternal angle (2nd rib and body of T5)
Xiphoid-sternal junction (T9/T10)
Lung apex (behind medial 3rd of clavicle)
Termination of abdominal aorta (L4)
Head of radius articulates with:
Capitulum of humerus
Proximal ulna (olecranon process) articulates with:
Proximal ulna (olecranon process) articulates with: Trochlea of humerus
Carpal bones
Scaphoid, lunate, triquetrum, pisiform, hamate, capitate, trapezoid, trapezium* (*thumb side)
Sam Limped To Paris, He Cant Take Trains (bottom right, counterclockwise)
What structures make up the hard palate?
Anterior 3/5: Maxilla (palatine processes of maxilla)
Posterior 2/5: Palatine bone proper
Where is hyaline cartilage found
clinical significance
Ribs, lines synovial joints
(Left over fetal skeleton)
(Costochondral junction = costochondritis, inflammation of hyaline)
What vertebrae are transverse foramen found in?
Cervical vertebrae only
(Where vertebral artery passes from C6 and up, but C7 still has the holes)
Which muscles attach to the supraglenoid and Infraglenoid tubercles
Supraglenoid: Longhead of biceps
Infraglenoid: Longhead of triceps
Label the foot bones
What is the function of the annular ligament
Holds the head of the radius
What muscles open the jaw
Digastric, lateral pterygoid (depress)
What muscles close the jaw
3
medial pterygoid, masseter + temporalis
(elevate jaw)
What innervates the muscles that open and close the jaw
CN 5 (V-3)
Where is the first intervertebral disk found
Between C2 and C3
Red vs White muscle fibers
Red: Slow twitch, low glycolytic capacity, high oxidative capacity
White: Fast twitch, high glycolytic capacity, low oxidative capacity
Isotonic vs isometric contraction
Isotonic: Force remains constant, muscle shortens during contraction (picking something up)
Isometric: Force increases during contraction, length of muscle remains constant (push on the floor of your house)
Skeletal muscle: Relaxation = Ca goes back into the ________ via ________
Skeletal muscle: Relaxation = Ca goes back into the (sarcoplasm) via (T-tubules)
Action potential length for skeletal vs cardiac muscle
Skeletal: 2-4ms
Cardiac: 200-400ms
What muscles attach to the coracoid process?
Coracobrachialis
Pec minor
Biceps
What muscles abduct the arm
Supraspinatus
Deltoid
Serratus anterior
What innervates:
Supraspinatus
Infraspinatus
Teres minor
Supraspinatus - Suprascapular n.
Infraspinatus - Suprascapular n.
Teres minor - Axillary n.
What are the anterior, lateral, posterior, and medial components of the axillary region
Name the contents of the Anatomical Snuff Box
SABER
What are the contents of the femoral triangle, and what are the borders?
NAVL (lateral to medial)
Nerve, artery, vein, lymph chain
Borders: Add. longus, sartorius, inguinal ligament
Hip nerves
Anterior flexors: Femoral n.
Medial adductors: Obturator n.
Lateral abductors: Superior gluteal n.
Posterior extensors: Sciatic n. and inferior gluteal n.
Where do the lumbar and sacral plexus meet?
Sciatic nerve
Erector Spinae (sacrospinalis group) muscles
SLI Spinalis division (Thor, cerv, capitis) Longissimus division (Thor, cerv, capitis) Iliocostalis division (Lumb, thor, cerv)
What innervates the diaphragm?
Phrenic nerve (C3,4,5)
“C3,4,5 keep the diaphragm alive”
Exercise physiology
-noids
pointy, dont go into joints
what suture is between the frontol and parietal bones
coronal
what suture is between the two parts of the parietal bone
sagittal
what suture is between the parietal and occipital bones
lamboidal
whats the clivus
portion of occipital bone anterior to magnum foramen
inion
EOP
pteryon
meeting of sutures:
coronal
temporoparietal
sphenofrontal
site of middle meningial artery
clinical significance
pteryon
thinnest part of side of skull; hit in side of head = rupture of artery/subdural hematoma
what part of the sternum ossifies during teen years
xiphoid process
Label the coronal sutures
which vertebra have transverse foramens?
cervical
the cruciate ligaments are named for____ and their anatomical actions are based on that of the ___
for their origin on the tibia, and their anatomical actions are based on that of the tibia
lateral lower leg bone
fibula
ALL is anterior in respect to what?
vertebral body
Common Primary Bone Cancers
Chondrosarcoma
Osteosarcoma
Ewing’s Sarcoma
Reactive Arthritis/Reiter’s Syndrome Etiology + Sx
Post Chlamydial infxn, male dominant
sx: urethritis, conjunctivitis, asymmetric lower extremity arthritis (can’t see, can’t pee, can’t dance with me)
what divides the anterior and posterior triangle of the neck
contents of ant and post triangles
SCM
ant: lymph nodes, thyroid, cartilages
post: brachial plexus exit
what is the most important structure located in the suboccipital triangle?
vertebral artery (AVOID needles; direct access to brain)
what 3 muscles attach on the corocoid?
coracobrachialis
short head biceps
pec minor
teres major vs minor; which attaches post and which ant humerus?
ant: major
post: minor
what CN supplies the digastric muscle
Ant = CN5
Post = CN7
