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.
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

Muscles - Pelvis

Muscles of the Pelvis and Pectoral Girdle

male bulbospongiosus origin: base of penis; fibers cross over urethra
male bulbospongiosus insertion: midline and central tendon of perineum
male bulbospongiosus action: compresses base and stiffens penis; ejects urine or semen
female bulbospongiosus origin: base of clitoris; fibers run on either side of urethral and vaginal openings
female bulbospongiosus insertion: central tendon of perineum
female bulbospongiosus action: compresses and stiffens clitoris; narrows vaginal opening
ischiocavernosus origin: inferior medial surface of ischium
ischiocavernosus insertion: central tendon of perineum
ischiocavernosus action: compresses and stiffens penis or clitoris
external urethral sphincter origin: inferior medial surfaces of ischium and pubis
male external urethral sphincter insertion: midline at base of penis; inner fibers encircle urethra
male external urethral sphincter action: closes urethra, compresses prostate and bulbourethral glands
female external urethral sphincter insertion: midline; inner fibers encircle urethra
female external urethral sphincter action: closes urethra, compresses vagina and greater vestibular glands
external anal sphincter origin: by tendon from coccyx
external anal sphincter insertion: encircles anal opening
external anal sphincter action: closes anal opening
levator ani origin: ischial spine, pubis
levator ani insertion: coccyx
levator ani action: tenses floor of pelvis, supports pelvic organs, flexes coccyx, elevates and retracts anus
levator scapulae origin: transverse processes of first 4 cervical vertebrae
levator scapulae insertion: vertebral border of scapula
levator scapulae action: elevates scapula
pectoralis minor origin: anterior surfaces of ribs 3-5
pectoralis minor insertion: coracoid process of scapula
pectoralis minor action: depresses and abducts shoulder; rotates scapula laterally; elevates ribs if scapula is stationary
rhomboid muscles origin: spinous processes of lower cervical and upper thoracic vertebrae
rhomboid muscles insertion: vertebral border of scapula
rhomboid muscles action: adducts and rotates scapula laterally
serratus anterior origin: anterior and superior margins of ribs 1-9
serratus anterior insertion: anterior surface of vertebral border of scapula
serratus anterior action: protracts shoulder, abducts and medially rotates scapula
trapezius origin: occipital bone and spinous processes of thoracic vertebrae
trapezius insertion: clavicle and scapula
trapezius action: depends on active region and state of other muscles; may elevate, adduct, depress, or rotate scapula, and/or elevate clavicle; can also extend or hyperextend neck
Created by: lizzy.spangler