BIOS251 Week 7 Chapter 9 Muscles in Motion – Shoulder Latest
BIOS251 Week 7 Chapter 9 Muscles in Motion – Shoulder Latest
BIOS251 Anatomy & Physiology I with Lab
Week 7 Chapter 9 Muscles in Motion – Shoulder
The shoulder (glenohumeral) joint is a ___________ synovial joint.
hinge
ball-and-socket
pivot
planar
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Most of the strength in the shoulder joint comes from the ______________.
articular capsule
coracohumeral ligament
rotator cuff muscles
glenohumeral ligaments
Which of the following is NOT a rotator cuff muscle?
subscapularis
supraspinatus
teres minor
teres major
Which rotator cuff muscle originates on the subscapular fossa of the scapula and inserts on the lesser tubercle of the humerus?
teres minor
subscapularis
infraspinatus
supraspinatus
When all rotator cuff muscles are activated at the same time they act to hold the head of the humerus in the _______________.
glenoid cavity
acetabulum
coracoid process
acromion
The teres major and __________ act synergistically to extend the shoulder.
coracobrachialis
pectoralis major
latissimus dorsi
supraspinatus
During the downswing, a right-handed batter’s right shoulder ___________ as the left shoulder __________________.
abducts and extends ; adducts and extends
adducts and extends ; abducts and extends
abducts and flexes; adducts and flexes
adducts and flexes; abducts and flexes
The pectoralis major and _____________ are the prime movers of shoulder adduction.
supraspinatus
deltoid
coracobrachialis
supraspinatus
The deltoid muscle inserts on the ___________ of the humerus.
head
greater tubercle
lesser tubercle
deltoid tuberosity
The ___________ is a rim of fibrocartilage that slightly deepens the glenoid cavity.
glenoid labrum
bursa
coracoid process
rotator cuff