What is one example of a cartilaginous joint?
Hyaline Cartilage joints in the maxilla.
None.
Fibrous Cartilage joints in the Skull.
Hyaline Cartilage joints in the ribs.
The Correct Answer is D
A cartilaginous joint is a joint where the bones are united by cartilage.
A hyaline cartilage joint is a type of cartilaginous joint where the bones are joined by hyaline cartilage.
An example of a hyaline cartilage joint is the first sternocostal joint that unites the first rib to the sternum.
Choice A is incorrect because hyaline cartilage joints are not present in the maxilla.
The maxilla is a single bone that forms the upper jaw and palate. Choice B is incorrect because none is not a valid answer.
Choice C is incorrect because fibrous cartilage joints are not present in the skull. The skull bones are joined by fibrous joints called sutures.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["External rotation of the shoulder joint"]
Explanation
External shoulder rotation is the movement of the humerus bone away from the centerline of the body, rotating the arm so that the palm faces away from the body.
This movement is achieved by the contraction of the external rotator muscles of the shoulder, which include the infraspinatus, teres minor, and posterior fibers of the deltoid muscle.
The joint involved in external shoulder rotation is the glenohumeral joint, also known as the shoulder joint.
The shoulder joint is a ball-and-socket joint formed by the articulation between the head of the humerus bone and the glenoid cavity of the scapula bone.
This joint allows for a range of movements, including:
1. Internal shoulder rotation: This is the opposite movement of external rotation, in which the humerus bone rotates inward toward the centerline of the body, with the palm facing inward.
2. Shoulder flexion: This is the movement of the humerus bone forward and upward, bringing the arm closer to the body's front.
3. Shoulder extension: This is the movement of the humerus bone backward and downward, moving the arm away from the body's front.
4. Shoulder abduction: This is the movement of the humerus bone away from the body's midline, raising the arm out to the side.
5. Shoulder adduction: This is the movement of the humerus bone toward the body's midline, bringing the arm back down to the side of the body.
6. Shoulder horizontal abduction: This is the movement of the humerus bone away from the body's midline at shoulder height.
7. Shoulder horizontal adduction: This is the movement of the humerus bone toward the body's midline at shoulder height.
All of these movements of the glenohumeral joint are important for many daily activities, including reaching, throwing, pushing, pulling, and lifting.
Correct Answer is ["Scapula protraction at the scapulothoracic joint."]
Explanation
Scapula protraction refers to the movement of the shoulder blade (scapula) away from the spine, toward the front of the body.
This movement is also known as scapular abduction or anterior scapular tilt.
The joint involved in scapula protraction is the scapulothoracic joint, which is not a true joint, but rather a functional joint formed by the articulation between the scapula and the thorax.
The scapula is a flat bone that glides over the back of the ribcage, allowing for a wide range of movements of the arm.
Other movements of the scapulothoracic joint include:
Scapula retraction: This refers to the movement of the shoulder blade towards the spine, away from the front of the body.
This movement is also known as scapular adduction or posterior scapular tilt.
Scapula elevation: This refers to the movement of the shoulder blade upwards towards the ears.
This movement is also known as the upward rotation of the scapula.
Scapula depression: This refers to the movement of the shoulder blade downwards towards the feet.
This movement is also known as a downward rotation of the scapula.
Scapula upward tilt: This refers to the movement of the upper border of the shoulder blade upwards, towards the head.
This movement is also known as superior scapular rotation.
Scapula downward tilt: This refers to the movement of the upper border of the shoulder blade downwards, towards the feet.
This movement is also known as inferior scapular rotation.
All of these movements are important for proper shoulder function and are necessary for a wide range of daily activities, such as reaching, lifting, pushing, and pulling.
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