Which muscle is part of the urogenital diaphragm and constricts the urethra?
The urogenital diaphragm is composed of two muscles: the deep transverse perineal muscle and the urethral sphincter.
Which muscle is part of the urogenital diaphragm quizlet?
The sphincter surround the urethra. It is also known as the external urethral sphincter. You have voluntary control over this muscle.
Are pelvic diaphragm and urogenital diaphragm same?
The urogenital diaphragm is external and inferior to the pelvic diaphragm. The pelvic diaphragm is a wide but thin muscular layer of tissue that forms the inferior border of the abdominopelvic cavity.
Which muscles make up the pelvic diaphragm?
On each side, the pelvic diaphragm is formed by two most unequal muscles, the small coccygeus muscle behind, and the much larger and more important levator ani muscle in front. Here’s the coccygeus muscle. It runs from the ischial spine, to the edge of the lower sacrum and coccyx.
What is the urogenital diaphragm?
The urogenital diaphragm, also called the triangular ligament, is a strong, muscular membrane that occupies the area between the symphysis pubis and ischial tuberosities (Fig. 3.31) and stretches across the triangular anterior portion of the pelvic outlet.
Which muscles insert upon the scapula and attach the scapula to the thorax select all that apply?
|Superior, lateral and medial
|Muscles that insert on the scapula
|Trapezius, levator scapulae, rhomboid major, rhomboid minor, serratus anterior, pectoralis minor muscles
|Suprascapular, posterior circumlex humeral, circumflex scapular, transverse cervical arteries
What is urogenital diaphragm?
Urogenital diaphragm: is the name given to deep transverse perineal and sphincter urethrae with inferior fascia is known as the urogenital diaphragm.
Which muscle terminology describes a muscle as Comblike?
Which muscle terminology describes a muscle as comblike? external oblique muscle.
Is the urogenital diaphragm the perineal membrane?
The perineal membrane is an anatomical term for a fibrous membrane in the perineum. The term “inferior fascia of urogenital diaphragm”, used in older texts, is considered equivalent to the perineal membrane. It is the superior border of the superficial perineal pouch, and the inferior border of the deep perineal pouch.
Is urogenital diaphragm part of pelvic diaphragm?
The term “urogenital diaphragm” is often confused with the pelvic diaphragm (pelvic floor), which is a true diaphragm supporting many of the pelvic organs….
Which muscle has an attachment to the ischial tuberosity?
Three tendons connect the hamstring to the ischial tuberosity. The gluteus maximus muscle covers the ischial tuberosity when your leg is straight and your thigh is extended.
Which muscles make up the pelvic diaphragm quizlet?
What two muscle groupings make up the pelvic diaphragm? levator ani, & coccygeus muscles.
What is the structure of the urogenital diaphragm?
The urogenital diaphragm consists of the deep transverse perineal muscle with the superior and inferior fascia. The perineal membrane is composed of two regions, one dorsal and one ventral. The dorsal portion consists of bilateral transverse fibrous sheets that attach the lateral wall of the vagina and perineal body to the ischiopubic ramus.
What nerve innervates the urogenital diaphragm?
They are innervated by the perineal branch of the pudendal nerve. The urogenital diaphragm, also called the triangular ligament, is a strong, muscular membrane that occupies the area between the symphysis pubis and ischial tuberosities ( Fig. 3.31) and stretches across the triangular anterior portion of the pelvic outlet.
What muscles attach to the urogenital triangle?
Muscles of the Urogenital Triangle. Deep transverse perinei: has several attachments in the deep perineal pouch. As it spans the space in a transverse manner (albeit, incompletely), the muscle attaches to the perineal body posteriorly and the ischiopubic rami laterally. The muscle has an anterior deficiency.
What muscles attach to the urethral sphincter?
Muscles of the superficial perineal group (superficial transverse perineal, bulbospongiosus, external anal sphincter) attach to it. Just anterior to the deep transverse perineal muscles is the urethral sphincter muscle, which forms a circular ring around the urethra in both sexes; in females it also encircles the vagina.