Chapter 8: The appendicular skeleton Flashcards
where is the only articulation between the upper limb and the thorax?
sternoclaviular joint- joint the clavicular notch of the sternum and the sternal end of the clavical
which joint articulates to acromial end of the clavical and to the scapula?
the acromioclavicular joint
how can you differenciate between the sternal and scalpular end?
- the sternal end is rounded
- the acromial end is flat
what ligaments are attached to the clavical?
- the costalclavicular ligament (from the 1st rib)
- intracalvicular ligament (hold the two together over top of the manibrium)
- sternoclavicular ligament (attches the clavical to the clavicular notch of the manibrum)
where do broken collar bones usually occur?
the lateral (distal) third-closet to the shoulder
Which part of the scapula forms the high point of the shoulder?
The acromion forms the high point of the shoulder.
Which parts of the humerus articulate with the radius at the elbow? With the ulna at the elbow?
The radius articulates at the elbow with the capitulum and radial fossa of the humerus. The ulna articulates at the elbow with the trochlea, coronoid fossa, and olecranon fossa of the humerus.
what is it that you hit when you “hit your funny bone”?
the ulnar nerve
What part of the ulna is called the “elbow”?
The olecranon is the “elbow” part of the ulna.
what are the three points where the radius and ulna atriculate?
- the connective tissue of the interosseous membrane (joins the shafts)
- the proximal radioulnar joint (the head of the radius attriculates with the ulna’s radial notch)
- distal radialulnar joint (the head of the ulna articulates with the ulnar notch of the radius)
the radius atriculates with which three bones of the wrist
- lunate
- scaphoid
- triquetrum
stop letting those people touch the cadaver hand
- scapoid
- lumate
- triquetrium
- pisiform
- trapizium
- trapaziod
- capitate
- hamate
what are the 3 large components of the pelvis?
- ilium
- ishium
- pubis
what is the largest foramen in the skeleton?
obturator foramen
what passes through the obturator foramen
- blood vessels and nerves
- amost completely closed off by obturator membrane
what is the difference between a male and a female pelvis?
the pubic arch is much wider on a female
tall centers never take short for corners
-talus
-calcaneus
-navicular
-third cuneiform
-second cuneiform
-first cuniform
cuboid
what are the two arches of the foot?
- medial
- transverse
how many bones are in each upper limb?
30
how many bones of the lower limbs are there?
30
what are the 3 major difference between the pelvic and shoulder girdles
- The pectoral girdle does not articulate directly with the vertebral column; the pelvic girdle does via the sacroiliac joint.
- The glenoid fossae are shallow and maximize movement; the acetabula are deep and allow less movement.
- The pectoral girdle affords more mobility than strength; the pelvic girdle offers more strength than mobility.
the tibula atriculates distaly with the?
talus
The anatomical name for the socket into which the humerus fits is the:
glenoid fossa
what pubic bones articulate with the sacrum
ilium
The greater sciatic notch is an indentation seen on the ________.
ishium
The lesser trochanter is on the ________ surface of the ________.
- posterior
- femur
The talus bone is located ________ to the navicular bone.
proximal (or posterior)
On the distal humerus, the ________ is located medial to the ________.
trochlea
capitulum
What humeral landmark is located just distal to the tubercles and is often the site of humeral fractures?
the surgical neck
When you are sitting, your weight is resting on the:
ishial tuberosities
What structure is typically used as a landmark for the site for intramuscular injections into the lateral thigh?
greater trochanter
Another name for the knee joint is the __________ joint.
tibiofemoral