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MSK NUR1114 Test With Complete Solution
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MSK NUR1114 Test With CompleteSolution
What are synovial joints? - Answer Bones seperated by fluid containing joint cavity
Freely moving
Most joints fall into this class
Movement of temporomandibular joint - Answer elevation, depression, protraction,
retraction
Movements of the atlanto-occipital joint - Answer flexion and extension
What are sutures in adult skull? - Answer Bones are interlocked by ossified connective
tissue
No movement possible
What are sutures in infant skull? - Answer Connected by unossified fibrous connective
tissue called fontanelles
Allow for edges of bone to glide over one another at birth
Accommodate brain growth
Name the sections of the vertebral column - Answer Cervical (7)
Thoracic vertebrae (12)
Lumbar (5)
Sacral (5)
Coccygeal (4)
What do intervertebral discs contain? - Answer Flexible fibrocartilage with gelatinous
centres
What is the atlas-axis joint? - Answer First intervertebral joint between first and second
cervical vertebrae
Is a pivot joint
What sort of bone is the sternum? - Answer Long flat bone
What does the sternum articulate with? - Answer The first seven pair of ribs
What are the three parts of the sternum called? - Answer manubrium, body, xiphoid
, process
What does the jugular notch consist of? - Answer The superior border of the manubrium
and medial ends of the clavicle
How many sets of ribs are there? - Answer 12 which connect to thoracic vertebrae
posteriorly
List where the ribs are connected to - Answer First 7: connected to sternum through
costal cartilage
Ribs 8,9,10: connect indirectly to sternum through costal cartilage
Ribs 11,12: do not reach sternum anteriorly. End in muscles of abdominal wall
What is between the ribs? - Answer Intercostal space
What do all skeletal muscles consist of? - Answer Bundles of fibre (fascicles)
List the muscles used in facial expression - Answer Orbicularis oculi, orbicularis oris
and buccinator
What is the origin, insertion and muscle action of the orbicularis oculi - Answer
Insertion: skin of the eyelid
Muscle action: closes the eyes
Origin: medial margin of the orbit
What is the origin, insertion and muscle action of the orbicularis oris? - Answer Origin:
maxilla and mandible
Insertion: skin at the corner of the mouth
Muscle action: closes the lips
What is the origin, insertion and muscle action of the buccinator? - Answer Origin:
maxilla and mandible
Insertion: fibres of the orbicularis oris
Muscle action: compressing of cheeks and sucking
What muscles move the mandible? - Answer temporalis and masseter
What is the origin, insertion and muscle action of the masseter? - Answer Origin:
zygomatic arch and zygomatic bone
Insertion: mandible
Muscle action: elevates the mandible
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