this exercise is to help you begin to understand the terminologywe use to identify the general landmarks and features on bones (youwill learn the specific bones of the skeleton and their features ingreat detail in lab 6.) use the skeletal material provided by yourinstructor (or the photos in the lab 5 exercise image library onpg. 131) to complete the following tasks.
1. Examine the cervical vertebra (neck vertebra). Locate thefeatures boldfaced and described below, and write the correspondingletters in the blanks provided on the image on pg. 131.
A. The transverse foramen (one on each side of the vertebra)transmits the vertebral arteries that send blood to the brain.
B. The posterior end of the vertebra has a spinous process towhich muscles and ligaments attach.
C. The foramen posterior to the body of the vertebra creates thevertebral canal for the spinal cord to pass through when thevertebrae are stacked up on one another in the spine.
2. Examine the humerus (upper arm bone). Locate the featuresboldfaced and described below, and write the corresponding lettersin the blanks provided on the image on pg. 131.
A. On the posterior side of the distal end of the humerus, thereis a feature called the olecranon fossa. This is where theelbow-forming projection of the ulna (one of the lower arm bones)sits when the lower arm is extended.
B. The medial side of the distal humerus has a small projectionyou can feel on the inside of your arm, called the medialepicondyle.
C. On the shaft of the humerus there is a projection called thedeltoid tuberosity where the deltoid muscle attaches.
3. Examine the sacrum, shinbone (tibia), and hip bone (pelvis).For each bone, state whether the bone feature indicated (either byyour instructor or by a red circle on the photo in the Lab 5Exercise image Library on pg. 132) is a projection, depression /groove, or foramen / canal.
A.
B.
C.
- Exercise 5 Bone Features This Exercise Is To Help You Begin To Understand The Terminology We Use To Identify The General 1 (39.34 KiB) Viewed 10 times
- Exercise 5 Bone Features This Exercise Is To Help You Begin To Understand The Terminology We Use To Identify The General 2 (79.13 KiB) Viewed 10 times
4 EXERCISE 5 BONE FEATURES 1 cm Superior view Anterior side Posterior side Figure Credit: Courtesy of Ashley Lipps 1. Cervical vertebra
Anterior view Posterior view 1 [ 2 cm 2 cm Figure Credit: Courtesy of Ashley Lipps 2. Left humerus (upper arm bone) 2 cm A 1 cm 5 cm Figure Credit: Courtesy of Ashley Lipps 3. Sacrum, shinbone (tibia), and hip bone (pelvis)