Question

Appendicular Anatomy pt. 2

Answer 1

please don't interrupt I'm way too stressed out to deal with people right now

This is my attempt to memorize/understand the structures presented in these figures from my anatomy textbook
Figures: 6.3 b,c,d,e
6.4
6.14 a
6.16 a
6.22 a,c
6.23 b,c
6.25 a
6.26 a
7.2 a
7.5 a,c
7.6 a,d
7.7 a,d
7.8 b
7.9 a
7.11 a
7.13 a,d
7.15 a
7.16 a,c

Answer 2

\({\bf{7.6a~the~Humerus:}}\) be careful w/ this one because the anterior and posterior views look very similar.



this drawing is disproportionate but i don't really have that much space + I didn't want to draw it sideways

Answer 3

let's start at the top

the head is this rounded surface up here

while the lesser and greater tubercle are rounded projections like so:

Answer 4

now we distinguish between the anatomical neck which is a little higher up and the surgical neck which is the part where the bone starts to transition into a flatter, less bulbous structure

Answer 5

in between the necks there is a intertubercular sulcus (inter meaning between, tubercular meaning tubercles) sulcus meaning groove

Answer 6

next we will go down the shaft, identifying two markings along the shaft

first we have the deltoid tuberosity which is a little higher up (think deltoid muscles) and the radial groove

Answer 7

at the distal end of the radius we have several structures

let's start w/ two fossa above the condyle; the radial fossa and the coronoid fossa. unfortunately there's no clever way to remember this so you must know that the radial fossa is near the lateral side and the coronoid is closer to the medial side

Answer 8

then, surrounding the condyle, we have the lateral and medial epicondyle, which, as you may guess, are on the lateral and medial sides of the condyle

Answer 9

then at the bottom (running out of room) you have the condyle, which is a smooth structure as indicated by its name, divided into the capitulum (think "cap" so it's higher up) and the trochlea ("pulley")

Answer 10

thankfully 7.6d is a little easier b/c there aren't so many structures labelled

Answer 11

as usual label the head, greater tubercle, anatomical neck, and surgical neck (the lesser tubercle is not visible from this angle)

Answer 12

then going down the shaft, the radial groove (which is much more pronounced this time) and the deltoid tuberosity

Answer 13

the medial and epicondyle are reversed this time (since this is the posterior view)

the trochlea is in the same position (we don't see the capicitum from this angle)

and that flat surface in the middle is the olecranon fossa

Answer 14

Adapted from Human Anatomy, Martini, et. al. 9th edition