week 8

Question 1

scalenus medius attachments in horse

Answer 1

first rib; then divides into 2 parts;
dorsal part inserts on C7
ventral part inserts on C4-C6

Question 2

Scalenus dorsalis attachments in ruminants

Answer 2

originates from 4th rib in ox and 2nd rib in goat; inserts on C4-C6

Question 3

scalenus ventralis in ruminants

Answer 3

originates from 1st rib and inserts on C3-C7

Question 4

Long thoracic nerve innervates

Answer 4

serratus ventralis

Question 5

serratus dorsalis attachments

Answer 5

thoracolumbar fascia and inserts on ribs

Question 6

serratus dorsalis cranialis attachments in horse

Answer 6

attaches lateral to iliocostalis to ribs 5 through 11 in the horse

Question 7

serratus dorsalis cranialis attachments in ox

Answer 7

ribs 5 through 9

Question 8

serratus dorsalis caudalis attachments in the horse

Answer 8

last 8 ribs

Question 9

serratus dorsalis caudalis attachments in ox

Answer 9

last 3 ribs

Question 10

serratus dorsalis caudalis attachments in SR

Answer 10

last 4 ribs

Question 11

external intercostal muscles run _____

Answer 11

caudoventrally

Question 12

internal intercostal muscles run ____

Answer 12

cranioventrally

Question 13

external intercostal muscles are muscles of

Answer 13

inspiration

Question 14

internal intercostal muscles are muscles of

Answer 14

expiration

Question 15

rectus thoracis muscle attachments in horse

Answer 15

originates from 1st rib; the cartilage of the 4th rib and its aponeurosis joins rectus abdominis

Question 16

rectus thoracis muscle attachments in ruminants

Answer 16

inserts on cartilages of 3, 4, 5 ribs and adjacent parts of the sternum

Question 17

action of rectus thoracis muscle

Answer 17

assists with inspiration by drawing the first few ribs and costal cartilages cranially and laterally

Question 18

longissimus thoracis courses

Answer 18

between the spines of the thoracic vertebrae and the transverse processes of more cranial thoracic vertebrae and lateral surface of ribs

Question 19

iliocostalis thoracis courses

Answer 19

from the cranial lumbar vertebrae and cranial border of the ribs to the transverse process of C7 vertebra; as well as to the caudal borders of the ribs in the horse

Question 20

external abdominal oblique muscle attachment

Answer 20

originates from 4th-18th ribs in horse and 6th-13th ribs in ruminants; thoracolumbar fascia; inserts on tuber coxae, body of ilium, linea alba