hello massage nurse today i'm going to be bringing you the upper extremity bones um this is part of
the appendicular skeleton so i'm going to talk about the shoulder blade which is the scapula
so s for shoulder blade and s for scapula and that's how you can remember it so everything that
you have been applying up to now as in your whole body superior inferior lateral medial
now you can apply it to the scapula or to any bone that you you know that you come across so
this would be the superior part of the scapula this will be the inferior part of the scapula
this will be the medial because it's closest to the medial line and then this will be the lateral
the scapula also has the spine of the scapula and what does that mean the spine the scapula is that
bony ridge that you can feel and the scapula also has three fossas the supraspinous process
where the supraspinatus goes the infraspinatus fossa and the subscapularis fossa on the anterior
part of this bone so it has three fossils and the fossa is just like a little hollow space
and the highest part of the scapula is that chromium process the chromium process is the
highest part the bony little part on the very top of your scapula that's the acromion process
so then this is the scapula or shoulder bone and then now she's we're going to turn around
and there's one part of the scapula is in the front and that's the coracoid process
it's usually very bony right along here you can feel it this is part of the scapula too this is
where three three muscles attach the origin of the short head of the biceps the origin of the
corrective brachialis and the insertion of the pec minor so it has three insertions right here it's
part of the scapula and you say well you know this is the one that looks like a little hook
so we try to make it look like a little hook so this is part of the scapula too
now we move to the clavicle this is the clavicle she has a beautiful look at a beautiful clavicle
clavicle with a c collarbone with a c so that's how you can remember collarbone clavicle
this is the medial side of the clavicle because it's on the medial part of the body and this is
the lateral side okay this is the sternoclavicular attachment right here because it attaches to the
sternum now the sternum is part of the axial skeleton so we didn't draw it because it's part
of the axial skeleton the sternum and the clavicle joint and that's the only joint in the top of and
the superior part of the body that joins the axial skeleton with appendicular skeleton so
this joint is very important and it's the uh i'm sorry the sterno clavicular another hint
anytime that you have two articulate an articulation is two bones being joined together it
has the names of the bones so it's very important for you guys to remember all the bones because if
you know your bones you're going to know all your joints all your articulations aka articulations
so the sternoclavicular joint and tendon attaches it and then you've
got your acromioclavicular acromion part of the scapula and the clavicle acromiclavicular joint
and ligament attach these two together and then the um scapula has the glenoid the glenoid fossa
uh cavity so that the humerus can go in there so now the humerus this is the head of the humerus
kind of like you have a head on your head well the humerus has a head too and then the body and
it's got the greater tubercle the greater tubercle is right here where the the infraspinatus the uh
supraspinatus and the teres minor attach at the at the tubercle of the the greater tubercle of
the humerus the lesser tubercle of the humerus is on the anterior part and this is where the
subscapularis the one that's um in front of the scapula it inserts at the lesser tubercle
of the humerus okay so this is the head of the humerus then you've got your lateral epicondyle
and your medial epicondyle and then they form these are the ones that form the elbow the elbow
with a radius this is the radial bone the radial is on the side of the thumb in anatomical position
the radial bone is on the side of the thumb and the ulnar which is a little bit longer
is on the side of the pinky and it's the radial bone that rotates over the ulnar bone
for pronation and supination the ulnar bone does not move it is the radial bone
rotates so radius for rotate so it rotates for pronation supination when you're holding the soup
and you've got like i said your humeral radial joint and your humeral ulnar joint okay and then
you've got your uh carpels here you've got eight carpels carpels you drive the car with carpels
with a c is what you drive the car with tarsals with a t go on your toes so carpals that's how you
can remember carpals there's eight of them eight carpels and there's two rows of uh four on each
hand then you've got your metacarpals you've got five metacarpals and this is number one metacarpal
by the thumb number two number three number four number five those are the palm the palm bones then
you've got your phalanges my favorite phalanges each finger has three phalanges except for the
thumb the thumb only has your distal phalange proximal phalange this is the proximal medial
and then distal so these three uh these fingers have three phalanges each the thumb is the only
one with two and there are 27 bones on one hand and 27 bones on the other hand so between the two
you have 54 bones in your hands plus 52 on your feet that's 106 bones just in your hands alone
that means you only have to learn 120 so it's not that bad so you guys can do it trust me you can
do it because if you break it down like that there's 106 between your hands and your feet
that's you know and then the bigger bones the same thing applies we're gonna do the lower extremity
next time and i want you guys to know oh i forgot to mention the the the clavicle and the scapula
form the shoulder girdle this is the shoulder girdle right here okay so this is what forms the
shoulder girdle and you have one on this side and one so you have a clavicle here and a clavicle on
the other side a scapula here scapula on to the side you have two humerus two radial bones two
ulnar bones and then the 54 in each hand so i hope this helps you to learn the bones and learn your
bones because if you know your bones you will know your joints your articulations until the next time
create a great day oh and thank you elizabeth for being my model thank you she's back take care guys