Biology Lab Final (Cardiovascular System)

Question 1

Frog - Ventricle

Answer 1

Chamber of frogs heart that pumps blood out of the heart to the lungs and other parts of the body

Question 2

Frog - Lungs

Answer 2

Pair of lungs serve as the organs of aerial respiration. The lungs are not just respiratory organs, but they are also hydrostatic organs, allowing the frog to float in water when expanded. The respiratory fact allows air to enter and exit the lungs.

Question 3

Frog - Atria ( L/R)

Answer 3

RIGHT ATRIA
- chamber of the frogs heart that recieves blood from the sinus venosus

LEFT ATRIA
- The chamber of the heart that receives blood from lungs

Question 4

Shark - Spiracle

Answer 4

Used to take in water and ventilate the gills, ingest microscopic food particles.

Question 5

Shark - Gills

Answer 5

Allows fish to take in oxygen from surrounding water and eliminate carbon dioxide from the blood

Question 6

Shark - Ventricle

Answer 6

Its function is to pump oxygenated blood to the rest of the body. I

Question 7

Shark - Atrium

Answer 7

(RIGHT) Its primary function is to receive deoxygenated blood returning from the body and pump it into the ventricle.

(LEFT) received oxygenated blood from lungs

Question 8

Shark - Aorta

Answer 8

Carries oxygenated blood to the heart

Question 9

Pig - R/L Ventricles

Answer 9

RIGHT VENTRICLE
Receives deoxygenated blood from the right atrium.
Contracts to pump this deoxygenated blood to the lungs via the pulmonary artery for oxygenation.
The right ventricle has thinner muscular walls compared to the left ventricle because it primarily pumps blood to the nearby lungs rather than throughout the entire body.

LEFT VENTRICLE
Receives oxygenated blood from the left atrium.
Contracts forcefully to pump this oxygen-rich blood into the aorta, the body’s main artery, which then distributes it to all parts of the body.
The left ventricle has thicker muscular walls compared to the right ventricle to generate enough force to pump blood throughout the systemic circulation.

Question 10

Pig - Caudal / Cranial Vena Cava

Answer 10

Cranial Vena Cava:
The cranial vena cava is the large vein that carries deoxygenated blood from the upper body regions, including the head, neck, and forelimbs, back to the heart.

Caudal Vena Cava:
The caudal vena cava is the large vein that returns deoxygenated blood from the lower body regions back to the heart.
The caudal vena cava also empties into the right atrium of the heart.

Question 11

Pig - Larynx

Answer 11

a structure located in the throat, also known as the voice box. It plays several important roles in respiration, vocalization, and protecting the airway.

Question 12

Pig - Trachea

Answer 12

The function of the trachea in pigs is to provide a passageway for air to travel between the larynx and the lungs,

Question 13

Pig - Lung

Answer 13

The function of the right and left lungs in pigs is to facilitate efficient gas exchange during respiration, ensuring the intake of oxygen and removal of carbon dioxide, while also supporting lung expansion, immune defense, and surfactant production.

Question 14

Pig - Diaphram

Answer 14

The diaphragm moves up and down as pigs breathe through a process of contraction and relaxation. allows air to enter and exit their lungs

Question 15

Sheep Heart - L/R Auricles

Answer 15

Upper chambers of the heart that recieve and fill with blood returning to heart in the veins. (R Atrium recieves from body - L Atrium from lungs or pulmonary veins)

Question 16

Sheep Heart - L/R Ventricles

Answer 16

Lower chambers of the heart that pump blood into larger arteries for distribution to the lungs via Pulmonary Artery (R Ventricle) and body tissues via Aorta (L Ventricle)

Question 17

Sheep Heart - L/R Atria

Answer 17

RIGHT - Muscular structure of the heart that
pumps oxygen poor blood to the right ventricle

Left - Muscular structure of the heart that
pumps oxygen rich blood to the left ventricle

Question 18

Sheep Heart - Atrioventricular groove

Answer 18

separates the heart’s upper chambers, called atria, from its lower chambers, called ventricles.

Question 19

Sheep Heart - Apex

Answer 19

helps pump or “wring out” blood from the ventricles to the rest of the body

Question 20

Sheep Heart - Interventricular Groove

Answer 20

seperates ventricles

Question 21

Sheep Heart - Cordae Tendinae

Answer 21

anchor the atrioventricular (AV) valves in place and maintain one-way blood flow.

Question 22

Sheep Heart - Bicuspid Valve

Answer 22

The valve controls blood flow from the left ventricle to the aorta, the main artery that delivers blood to the body

Question 23

Sheep Heart - Tricuspid Valve

Answer 23

Prevents backflow of blood into right atrium when right ventricle
pumps blood to lungs

Question 24

Sheep Heart - Interventricular septum

Answer 24

ensures that blood flows properly through the heart.