Comd 3100 Exam 2 Muscles Of Expiration 2

Front 1

1. ribs 1-11
2. rib below
3. depresses ribs 1-11

Back 1

Internal Intercostals

Front 2

1. lower third of sternum at inner surface
2. constal cartilage at ribs 2-6
3. pull ribs down and inward

Back 2

Transverse Thoracis

Front 3

-vary in number
1. inner thorax, inner surface of rib near angle
2. inner surface of 2nd or 3rd rib below
3. depresses thorax

Back 3

Subcostals

Front 4

1. spinous process of T11-T12, L1-L3
2. lower margin of ribs 7-12
3. muscles pull the rib cage down

Back 4

Serratus Posterior Inferior

Front 5

_______________________ is a tendonous structure that provides an attachment point for many muscles of the abdomen.

Back 5

Abdominal aponeurosis

Front 6

white line that rus from xiphoid process to the pubic symphysis

Back 6

linea alba

Front 7

_______________________ is a continuous layer of connective tissue from the linea alba to the external oblique muscles.

Back 7

Rectus Sheath

Front 8

____________________ includes:
1.linea alba
2. rectus sheath
3. linea semilunaris
4. inguinal ligament

Back 8

abdominal apeoneurosis

Front 9

1. originates as four or five segments at the pubic inferiorly
2. xiphoid process of sternum and cartilage of ribs 5-7, lower ribs
3. flexion of vertebral column

Back 9

Rectus Abdominus

Front 10

_________________ is the deepest layer of anterior abdominal muscles.

Back 10

Transversus Abdominus

Front 11

_________________ splits into two layers at the linea alba to cover the abdominal muscles.

Back 11

Rectus Sheath

Front 12

___________________ forms a midline structure for muscle development.

Back 12

linea alba

Front 13

-two layers from rectus sheath join to form a vertical line of aponeurosis

Back 13

linea semilunaris

Front 14

_____________________ (a part of abdominal aponeurosis) is a thickened strand of aponeurosis running from the anterior-superior iliac spine to the pubic symphysis.

Back 14

inguinal aponeurosis

Front 15

_________________: midline muscles on sides of linea alba made up of 3 fibrous bands that cross the stomach.

Back 15

Rectus Abdominus

Front 16

1. posterior abdominal wall at the vertebral column
2. transversus abdominus aponeurosis, inner ribs 6-12, and ingerior attachment at the pubis
3. compress the abdoment

Back 16

Transversus Abdominus

Front 17

-found between external and transverse oblique
1. inguinal ligament and iliac crest
2. lower ribs and abdominal aponeurosis
3. rotates and flexes trunk, compresses the abdomen

Back 17

Internal Abdominal Oblique

Front 18

-most superficial and largest of this group of abdominal muscles
1. lower seven ribs
2. iliac crest, inguinal ligament, and abdominal aponeurosis
3. flexes vertebral column, compresses abdomen

Back 18

External Abdominal Oblique

Front 19

-located on the back portion of the abdominal wall
1. iliac crest
2. transverse processes of the lumbar vertebrae and inferior border of rib 12
3. pulls last rib down, fixes rib cage forward

Back 19

Quadratus Lumborum

Front 20

-broad triangular muscle
1. lumbar, sacral, and lower thoracic vertebrae
2. humerus
3. stabilizes posterior abdominal wall for expiration

Back 20

Latissimus Dorsi