Lab 24 Assessments Flashcards
A band of tough connective tissue in the midline of the anterior abdominal wall called the _______ serves as a muscle attachment.
Linea Alba
The ______ muscle spans from the costal cartilages and xiphoid process to the pubic bones.
Rectus Abdominis
The ______ forms the third layer (deepest layer) of the abdominal wall muscles.
Transverse Abdominis
The action of the external oblique muscle is to _____.
- Tense the abdominal wall
- Compress the abdominal contents
- Aid in trunk rotation
The action of the rectus abdominis is to _______.
- Flex the vertebral column
2. Compress the abdominal contents
The iliocostalis, longissimus, and spinalis muscles together form the _______ group.
Erector Spinae
The ______ has the origin on the iliac crest and the insertion on rib 12 and L1-L4 vertebrae.
Quadratus Lumborum
The origin of the _______ is on the iliac crest and inguinal ligament.
Internal Oblique
The insertion of the ______ is on the xiphoid process and costal cartilages.
Rectus Abdominis
Name 4 muscles that compress the abdominal contents.
- Transversus Abdominis
- External Oblique
- Rectus Abdominis
- Internal Oblique
The actions of the ______ group of vertebral column muscles are similar to the erector spinae group and the quadratus lumborum.
Semispinalis
Name the 3 muscles included in the semispinalis group.
- Semispinalis Capitis
- Semispinalis Cervicis
- Semispinalis Thoracis
The levator ani and coccygeus together form the ______ diaphragm.
Pelvic
The posterior portion of the perineum is called the ______ triangle.
Anal
The ______ ensheaths the root of the penis.
Bulbospongiosus
In females, the bulbospongiosus acts to constrict the ______.
Vagina
n the female, the pelvic floor (outlet) is penetrated by the urethra, vagina, and ______.
Anus
In the female, the ______ muscles are separated by the vagina, urethra, and anal canal.
Levator Ani
The insertion of the levator ani is on the ______.
Coccyx
The coccygeus muscle has an origin on the ______.
Ischial Spine
The superficial transverse perineal muscle acts to support the ______.
Pelvic Viscera
Name 5 muscles of the pelvic floor that males and females have in common.
- Bulbospongiosus
- Ischiocavernosus
- Superficial Transverse Perineal Muscle
- External Anal Sphincter
Which of the following muscles is NOT part of the erector spinae group?
A. iliocostalis
B. longissimus
C. spinalis
D. quadratus lumborum
D. quadratus lumborum
The abdominal wall muscles possess the following functions EXCEPT
A. extend the spine
B. compress the abdominal visceral organs
C. assist in forceful exhalation
D. help maintain posture
A. extend the spine
The abdominal muscle nearest the midline is the
A. external oblique
B. internal oblique
C. rectus abdominis
D.transverse abdominis
C. rectus abdominis
Which of the following muscles would be most important in relation to a vaginal delivery?
A. bulbospongiosus
B. quadratus lumborum
C. spinalis
D. erector spinae
A. bulbosponfiosus
The four muscles of the abdominal wall
A. contain muscle fibers in the same direction
B. contain muscle fibers in four different directions
C. are responsible for trunk extension
D. fully overlap each other.
B. contain muscle fibers in four different directions
The iliocostalis represents the lateral muscle group of the erector spinae.
A. true
B. false
True
The pelvic floor muscles are all arranged in a single superficial layer.
A. true
B. false
false
The anterior urogenital triangle and posterior anal triangle make up the
Perioneum
