Lab 24 Assessments

Question 1

A band of tough connective tissue in the midline of the anterior abdominal wall called the _______ serves as a muscle attachment.

Answer 1

Linea Alba

Question 2

The ______ muscle spans from the costal cartilages and xiphoid process to the pubic bones.

Answer 2

Rectus Abdominis

Question 3

The ______ forms the third layer (deepest layer) of the abdominal wall muscles.

Answer 3

Transverse Abdominis

Question 4

The action of the external oblique muscle is to _____.

Answer 4

1. Tense the abdominal wall
2. Compress the abdominal contents
3. Aid in trunk rotation

Question 5

The action of the rectus abdominis is to _______.

Answer 5

1. Flex the vertebral column

2. Compress the abdominal contents

Question 6

The iliocostalis, longissimus, and spinalis muscles together form the _______ group.

Answer 6

Erector Spinae

Question 7

The ______ has the origin on the iliac crest and the insertion on rib 12 and L1-L4 vertebrae.

Answer 7

Quadratus Lumborum

Question 8

The origin of the _______ is on the iliac crest and inguinal ligament.

Answer 8

Internal Oblique

Question 9

The insertion of the ______ is on the xiphoid process and costal cartilages.

Answer 9

Rectus Abdominis

Question 10

Name 4 muscles that compress the abdominal contents.

Answer 10

1. Transversus Abdominis
2. External Oblique
3. Rectus Abdominis
4. Internal Oblique

Question 11

The actions of the ______ group of vertebral column muscles are similar to the erector spinae group and the quadratus lumborum.

Answer 11

Semispinalis

Question 12

Name the 3 muscles included in the semispinalis group.

Answer 12

1. Semispinalis Capitis
2. Semispinalis Cervicis
3. Semispinalis Thoracis

Question 13

The levator ani and coccygeus together form the ______ diaphragm.

Answer 13

Pelvic

Question 14

The posterior portion of the perineum is called the ______ triangle.

Answer 14

Anal

Question 15

The ______ ensheaths the root of the penis.

Answer 15

Bulbospongiosus

Question 16

In females, the bulbospongiosus acts to constrict the ______.

Answer 16

Vagina

Question 17

n the female, the pelvic floor (outlet) is penetrated by the urethra, vagina, and ______.

Answer 17

Anus

Question 18

In the female, the ______ muscles are separated by the vagina, urethra, and anal canal.

Answer 18

Levator Ani

Question 19

The insertion of the levator ani is on the ______.

Answer 19

Coccyx

Question 20

The coccygeus muscle has an origin on the ______.

Answer 20

Ischial Spine

Question 21

The superficial transverse perineal muscle acts to support the ______.

Answer 21

Pelvic Viscera

Question 22

Name 5 muscles of the pelvic floor that males and females have in common.

Answer 22

1. Bulbospongiosus
2. Ischiocavernosus
3. Superficial Transverse Perineal Muscle
4. External Anal Sphincter

Question 23

Which of the following muscles is NOT part of the erector spinae group?

A. iliocostalis
B. longissimus
C. spinalis
D. quadratus lumborum

Answer 23

D. quadratus lumborum

Question 24

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

Answer 24

A. extend the spine

Question 25

The abdominal muscle nearest the midline is the

A. external oblique
B. internal oblique
C. rectus abdominis
D.transverse abdominis

Answer 25

C. rectus abdominis

Question 26

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

Answer 26

A. bulbosponfiosus

Question 27

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.

Answer 27

B. contain muscle fibers in four different directions

Question 28

The iliocostalis represents the lateral muscle group of the erector spinae.

A. true
B. false

Answer 28

True

Question 29

The pelvic floor muscles are all arranged in a single superficial layer.

A. true
B. false

Answer 29

false

Question 30

The anterior urogenital triangle and posterior anal triangle make up the

Answer 30

Perioneum