Saturday, July 14, 2007

Major lab project






In this project The house hold products I used to make a human limb were paperclips. I chose to do the arm and forearm.
Bones of the Arm
The bones of the human arm extend from the shoulder to the wrist. The humerus is the bone of the upper arm. The rounded head of the humerus fits into a cavity in the scapula to form the shoulder joint. The shoulder joint is a ball-and-socket joint that enables full circular movement of the arm. The lower end of the humerus joins the bones of the forearm at the elbow to form a hinged joint. This hinged joint permits the forearm to bend up and down. The radius and ulna are two parallel bones that form the forearm. The radius is the shorter bone on the thumb-side of the forearm. The radius can rotate over the ulna, permitting the forearm to twist.



The structures you should be able to identify are:
head
anatomical neck
greater tubercle
lesser tubercle
crest of the greater tubercle
crest of the lesser tubercle
intertubercular sulcus (groove)
deltoid tuberosity
medial epicondyle
lateral epicondyle
capitulum
trochlea
coronoid fossa
olecranon fossa



The structures you should be able to identify are:
Radius
head
neck
radial tuberosity
styloid process
Ulna
coronoid process
olecranon process
ulnar tuberosity
slyloid process

In conclusion the arm consists of several different muscles and bones.

the arm, wrist and hand: There are 64 bones in the upper extremity. They consist of 10 shoulder and arm, 16 wrist and 38 hand bones.
The 10 shoulder and arm bones are the clavicle, scapula, humerus, radius, and ulna on each side.
The 16 wrist bones are the scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate on each side.
The 38 hand bones are the 10 metacarpal bones and 28 phalanges (finger bones).

I thought that this lab was very interesting, and enjoyed playing around with different bones and muscles that consist in the arm.

1 comment:

Larry Frolich said...

Liz,
Nice work on this unit. Please be sure you read the directions for the lab projects. The model should have included a working neuron, joint and muscle cell with actin-myosin sliding filaments. On the compendiums, please be sure you cover all the minor topics as in the powerpoints or in the books chapters. I enjoyed reading your ethics issue essay. I’m glad your posting problems got worked out and all looks fine. Just one unit to go!
LF

By the way, the course eval should be anonymous and I copied it to the course open forum. I didn’t read it here and you can erase if you would like.