Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


BIO201 - Ch 10 - Muscular System Shoulder&Arm - Marieb/Hoehn - Rio Salado - AZ

Extrinsic muscles of posterior thorax include? Latissimus dorsi, trapezius muscles, rhomboids, & levator scapulae.
The clavicles rotate around __ to provide stability & precision to scapular movements. Their own axes.
The important movements of the pectoral girdle involve __. Displacements of the scapula - elevation/depression rotation & lateral/medial movements.
Most scapular movements are promoted by? The serratus anterior muscles & posterior muscles.
Muscles originating posterior to shoulder joint __ the arm. Extend
The latissimus dorsi & posterior fibers of deltoid muscles are the __ of arm extension. Prime movers
The latissimus dorsi & pectoralis muscles are __ of one another in the flexion-extension movements of arm. Antagonists
The rotator cuff muscles act as __ in the angular & rotational movements of the arm. Synergists
The main function of rot. cuff muscles is to __. Reinforce capsule of shoulder joint to prevent dislocation of the humerus.
Muscles that originate anterior to shoulder joint __ the arm. Flex
Prime mover of arm flexion is the __. Pectoralis major
Name the prime mover of arm abduction. Deltoid muscle - active during swinging movements during walking - N=axillary nerve
Name the main adductors of arm. Pectoralis major & latissimus dorsi
All muscles acting on the humerus originate from the __. Pectoral girdle
Muscles originating __ to shoulder joint extend the arm. Posterior
To paddle a canoe, which muscle acts with the trapezius to "square the shoulders?" Rhomboids
__ muscles cross each sholder joint to insert on the humerus. 9
Name 3 prime movers of arm movements. Pectoralis major, latissimus dorsi, & deltoid.
Name the 4 rotator cuff muscles. Supraspinatus, infraspinatus, teres minor, & subscapularis.
The rotator cuff muscles originate on the __. Scapula
The arrangement of muscle attachments to scapula is that __. One muscle cannot bring about simple (linear) movements of its own. Several muscles must act in combination.
The prime mover of shoulder elevation are __. The trapezius & levator scapulae.
Pushing or punching movements (abduction) of scapula reflects __ activity. "Boxers muscle". Serratus anterior.
Which muscles shrug the shoulders? The Trapezius.
Prime movers of arm extension are? Latissimus dorsi & deltoid.
Walls of fascia divide the arm into what 2 muscle compartments? Posterior extensors & anterior flexors.
Prime mover of forearm extensiors? Triceps brachii
All anterior arm muscles cause elbow __. Flexion
Forearm muscles are functionally divided into 2 groups. Those causing wrist movements & those moving fingers & thumb.
Flexor & extensor retinacula Strong ligaments/"wrist bands" that keep tendons from jumping outward when tensed.
Most flexors in the anterior compartment of forearm arise from a common tendon on the __ & innervated by __. Humerus - Median nerve
Name the 2 pronators of the forearm. Pronator teres & pronator quadratus.
Which muscle assists biceps brachii in supinating the forearm? Supinator
All posterior forearm muscles supplied by __ nerve. Radial
Most muscles that move the hand are located __. In the forearm & "operate" the fingers via long tendons.
Intrinsic muscles of the hand allow for? Fine movements of the fingers.
All intrinsic muscles lie in the __. Palm & none on hands' dorsal side.
The thumb flexes by bending __. Medially, not anteriorly like other fingers.
3 groups of intrinsic muscles of the palm. (1)thenar eminence (ball of thumb), (2)hypothenar eminence (ball of little finger), & (3) midpalm.
The midpalmar muscles do what? Extend our fingers at the interphalangeal joints.
The main finger abductors & adductors. Interossei
Created by: Ladystorm