5 Lab 7 Articulations

Lab 7

Activity 7.1 Appendicular Skeleton – Creating a Glove of Bones and Joints of the Hand

Figure 7.1 Bones and joints of the hand

INSTRUCTIONS:

Trace your non-dominant hand on an 8×14 inch sheet of paper. Trace the volar surface on one side, and the dorsal surface  on the other. Label each drawing as anterior (volar) and posterior.  Using Figure 7.1,  label all structures of the hand on each trace, according to the pictures provided to you. You should have all joints label, phalanges, carpals, radius, and the ulna bone when done.

Once your drawing is complete, you will transfer all of the information to a white glove. You must wear the glove while transferring this information, so that the structures line up.  Do not transfer the labeling, only the drawing.  Practice memorizing all structures on the hand while wearing your glove. You will be quizzed on these structures.

_________________________ (Score out of 10).

Activity 7.2 – Assembling Selected Joints of a Disarticulated Skeleton

Table 7.1 Bones of Selected Joints

INSTRUCTIONS:

Using information in Table 7.1, create the 5 joints described below. It’s important that you look carefully at your articulated skeleton while completing this task. Take a snapshot of your assembly, then upload it to your LMS. When taking your snapshot, it is important that the photo shows the joint without obstruction.  Work with a lab partner to hold the joint in place as needed when taking photos.

You will use an articulated skeleton to verify you’ve assembled these joints correctly. To effectively assemble the joints listed in the table above using a disarticulated skeleton, follow these steps:

Part I.

Identify the Bones: Begin by locating each bone mentioned for the respective joint. Familiarize yourself with their shapes and landmarks for easier assembly.

A. Atlanto-Occipital Joint:

1. Position the occipital bone at the base of the skull.
2. Align the atlas (C1 vertebra) below the occipital bone, ensuring that the condyles of the occipital bone are sitting on the superior articular facets of the atlas.
3. Take a snapshot and paste it into your Word document.

B. Shoulder Joint:

1. Locate the scapula and orient it correctly with the glenoid cavity facing laterally.
2. Position the humerus so that its head fits snugly into the glenoid cavity of the scapula.
3. Take a snapshot and paste it into your Word document.

C. Knee Joint:

1. Start with the femur in a horizontal position.
2. Place the tibia beneath the femur, ensuring that the femoral condyles rest on the tibial plateau.
3. Finally, position the patella in front of the distal femur, aligning it within the patellar groove.
4. Take a snapshot and paste it into your Word document.

D. Elbow Joint:

1. Position the humerus horizontally.
2. Align the ulna so that its trochlear notch articulates with the trochlea of the humerus.
3. Place the radius alongside the ulna, ensuring that its head aligns with the radial notch of the ulna.
4. Take a snapshot and paste it into your Word document.

E. Ankle Joint:

1. Position the tibia vertically with the anterior aspect facing forward.
2. Place the fibula parallel to the tibia, ensuring it is positioned laterally.
3. Finally, position the talus between the two, fitting its superior surface under the distal ends of the tibia and fibula.
4. Take a snapshot and paste it into your Word document.