Q2 Osteology Flashcards
Infraglenoid tubercle
Side lying or prone. Locate the Margo lateralis.
Slide along the lateral border to its most superior portion. To access the landmark directly, you can either compress through the overlying muscles or curl underneath them.
Infraspinous fossa
•Prone. Palpate the spine of the scapula, its medial border & its lateral bored to isolatee the infaspinous fossa.
•Cradle the inferior angle in the webbing between your index finger & thumb. Your index finger will rest along the medial border, your thumb along the lateral border.
Place a finger of the opposite hand along the length of the spine of the scapula. The triangular shaped area you isolate is the infraspinous fossa.
Suprasoinous fossa
•Prone. Drop your thumbpad ineriorly & laterally from the superior angle into the fossa, or lay your thumb along the spine of the scapula & raise it superiorly into the fossa.
•Although the fossa is covered by the trapezius & supraspinatus muscles, exploreas much as you can of its size & shape.
Slide your thumbs laterally, noting how the fossa becomes thinner & finally ends at the junction of the acromion & clavicle. Actually, the fossa continues underneath the acromion, although it is inaccesible.
Subscapular fossa
•Side-lying. This position allows the scapula to slide away from the rib cage for easier access.
•Place your thumb at the middle of the lateral border. Be sure to position your thumb anterior to the large mass of muscles along the lateral border.
Slowly sink & curl your thumbpad onto the surface of the fossa. Use your other hand to maneuver the arm & scapula for a position that best allows your thum to sink into the tissue. You may only be able to sink an inch into the fossa.
Acromioclavicular joint (AC)
•Seated or supine. Locate the acromion.
•Glide medially toward the clavicle. Your finger will feel a small ‘step’ as you rise up onto the surface of the clavicle.
•Backtrack slightly. Just lateral to the step will be the A/C joint’s slender ditch.
Sternoclavicular joint (SC)
•Seated or supine. Slide your fingers medially along the shaft of the clavicle.
•Just lateral to the body’s centreline, the shaft will broaden to become the bulbous sternal end.
•Locate the S/C joint by sliding your finger medially off the sternal end. Passively elevate, depress & abduct the scapula. Then explore the changes occurring at the S/C joint.
Deltoid tuberocity
•Seated or supine. Locate the acromion.
•Slide off the acromion & down the lateral aspect of the arm.
•When you reach the halfway point between the shoulder & elbow, there will be a small mound on the lateral side of the arm
Greater tubercle
•Seated or supine. Shaking hands with your partner, locate the acromion.
•Slide off the acromion inferiorly & laterally approximately 1 inch.
•The solid surface located deep to the deltoid fibres will be the greater tubercle. You may feel a small dip between the acromion & the tubercle.
Intertubercular groove and Lesser tubercle
•Place your thumb on the greater tubercle
•Begin to rotate the arm laterally. As the humerus rotates, the greater tubercle will move out from under your thumb & be replaced by the slender ditch of the intertubercular groove.
As you continue to laterally rotate the arm, your thumb will rise out of the groove onto the lesser tubercle.
Xiphoid process
•Slide your fingers inferiorly until they drop off the sternum & fall into the muscles of the abdomen. Now backtrack to the most inferior tip of the sternum, which will be the xiphoid process. Gently sculpt this tip.
Ask your partner to exhale, this will allow you to move you fingers deeper into the tissue and onto the xiphoid process.
Jungular notch & Manubrium
•Partner supine. Place your finger upon the sternum at the centre of your partner’s chest.
•Slide superiorly until you reach the jugular notch at the top of the sternum. Explore the notch & its location next to the sternoclavicular joints.
