lecture 35/36: Ruminant Thoracic Viscera

Question 1

Bison exhalation from Respiratory system:

What does it start with?
Where does it end at?

Answer 1

starts with the nares
ends at the alveoli

Question 2

how many pairs of ribs do cattle have?
how many pairs of ribs do goats have?

Answer 2

13 pairs

Question 3

which lung has more lobes? Right or left?

Answer 3

more lobes on the Right

R=4
L=2

Question 4

what makes something a lung lobe

Answer 4

if it has a primary bronchus

Question 5

Answer 5

1. middle lobe
2. accessory lobe
3. caudal lobe

Question 5

why is the tracheal bronchus a problem in bovine

Answer 5

it increases the risk of respiratory infections, particularly bronchopneumonia

Question 6

Answer 6

Question 7

Answer 7

Question 8

what are 9/10/11 representing

Answer 8

pulmonary lymph nodes

Question 9

identify 1-4

Answer 9

1 – trachea
2 – tracheal bronchus
3 – primary bronchus
4 – right lung; cranial lobe, cranial
portion
4’ – right lung; cranial lobe, caudal
portion

Question 10

identify 5-8

Answer 10

5 – right lung; middle lobe
6 – right lung; caudal lobe
7 – left lung; cranial lobe; cranial
portion
7’ – left lung; cranial lobe; caudal
portion
8 – left lung; caudal lobe

Question 11

identify 1-4

Answer 11

1- trachea
2- left lung; cranial lobe; cranial portion
2’- left lung; cranial lobe: caudal portion
3-left lung; caudal lobe
4- right lung; cranial lobe

Question 12

Answer 12

Question 13

Answer 13

Question 14

Answer 14

a – cranial lobe; cranial portion

.a’- cranial lobe; caudal portion

.b – middle lobe

.c – caudal lobe

Question 15

Answer 15

apex of the heart

Question 16

what side of the heart is this

Answer 16

auricular view (left)

Question 17

what side of the heart is this

Answer 17

atrial view (right)

Question 18

why is the left ventricle of the heart thicker

Answer 18

pushes blood to the whole body

Question 19

what is the passageway of blood in the heart starting at the right atrium

Answer 19

Question 20

identify 9,11,14

Answer 20

9. cranial vena cava
10. pulmonary veins (oxygenated)
11. caudal vena cava

Question 21

how many aortas do mammals have? reptiles?

Answer 21

mammal=1
reptile= 2

Question 22

identify 1-5

Answer 22

1 – right ventricle
2 – left ventricle
3 – left auricle
4 – left coronary artery
5 – conus arteriosus (pulmonary outflow tract)

Question 23

identify 6-9

Answer 23

6 – right auricle
7 – aortic arch
8 – ligamentum arteriosum
9 – cranial vena cava

Question 24

identify 10-14

Answer 24

10- left pulmonary artery 11- pulmonary veins 12- left azygous vein 13- right azygous vein 14-caudal vena cava

Question 25

identify 1,2,4'',7,9

Answer 25

1 – right ventricle 2 – left ventricle 4” – subsinusal interventricular artery 7 – aortic arch 9 – cranial vena cava

Question 26

identify 10-14

Answer 26

10’- major pulmonary vein 11- minor pulmonary veins .11- pulmonary vein 13 – right azygous vein 14 – caudal vena cava

Question 27

explain the ligamentum arteriosum in a young animal

Answer 27

It is a fetal blood vessel that connects the pulmonary artery to the descending aorta. This allows blood to bypass the non-functional fetal lungs, since oxygen is obtained from the placenta.

Question 28

the ligamentum arteriosum in the fetus causes blood traveling to pulmonary trunk to bypass to the ____

Answer 28

aorta

Question 29

what tends to happen in some animals = (one example being Yorkie) to the ligamentum arteriosum

Answer 29

sometimes it wont shrink= "blue baby"

Question 30

what does the ligamentum arteriosum turn into once the baby begins to breath on its own

Answer 30

????????

Question 31

subsinosal groove in the heart is below the ____

Answer 31

SA node

Question 32

what atrium is the SA node associated with

Answer 32

R atrium

Question 33

Answer 33

Question 34

Answer 34

Question 35

Answer 35

Question 36

what is the function of the trabecula septamarginalis

Answer 36

carries cardiac conduction nerve fibers from interventricular septum to the ventricular marginal wall; markedly thicker tissue than equine spp

Question 37

Answer 37

Question 38

what view of the equine heart is this

Answer 38

Atrial view

Question 39

Answer 39

**in an equine heart

Question 40

Identify A-E

Answer 40

A – Pulmonary outflow tract B – Ascending aorta C – Cranial vena cava D – Caudal vena cava E – Pulmonary veins

Question 41

Identify F-I

Answer 41

F – Left azygous vein G – Left auricle H – paraconal interventricular sulcus I – Conus arteriosus

Question 42

identify 1-3

Answer 42

1 - Right circumflex vein 2 – Right coronary vein 3 – ramus interventricularis paraconalis

Question 43

identify 5 and 6

Answer 43

5 – Left coronary artery 6 - ramus interventricularis paraconalis

Question 44

Identify A-D

Answer 44

A – Cranial vena cava B – Ascending aorta C – Brachiocephalic trunk D – Caudal vena cava

Question 45

Identify E-H

Answer 45

E – Pulmonary veins F – Left azygous vein G – Left atrium H – Right atrium

Question 46

identify #3

Answer 46

3 – ramus of paraconal interventricular vein

Question 47

identify 5 and 7

Answer 47

5 – Left coronary artery 7 – Right coronary artery

Question 48

List the Bovine Heart 4 major valves

Answer 48

*aortic valve, *left atrioventricular valve *right atrioventricular valve *pulmonary valve

Question 49

Between the right atria and right ventricle is what valve

Answer 49

Right A-V valve

Question 50

Between the Left atria and left ventricle is what valve

Answer 50

Left A-V valve

Question 51

Answer 51

Question 52

it the left or right ventricle thicker

Answer 52

left ventricle (by around 1 cm more)

Question 53

what is the ostium aortae

Answer 53

refers to the aortic opening or aortic orifice, which is the opening between the left ventricle and the ascending aorta in the heart (Dr.nadar called this a bone?) os cordis is the bone in the heart that surrounds the aorta specific to cows (found on google??)

Question 54

Answer 54

Question 55

Answer 55

Question 56

Answer 56

Question 57

Answer 57

Question 58

Answer 58

Question 59

Answer 59

Question 60

what is this

Answer 60

gemsbuck (bovidae)