The Circulatory System Flashcards
It is the fluid between tissues.
Interstitial Fluid
What are the two types of Circulatory Systems?
Open Circulatory System & Closed Circulatory System
What is the circulating fluid of the Closed Circulatory System?
Blood
What is the circulating fluid of the Open Circulatory System?
Hemolymph
It is when the blood is confined in the blood vessels.
Closed Circulatory System
It is when the hemolymph is not enclosed in a tube or vessel.
Open Circulatory System
It is where blood flows.
Diffusion
It is composed of a duct system (arteries) and body spaces, where blood flows via diffusion.
Open Circulatory System
What is the blood flow of the Closed Circulatory System?
Heart - Artery - Capillaries - Cells, tissues - Capillaries - Veins - Back to the heart
What is the blood flow of the Open Circulatory System?
Heart - Arterial system - Cells, tissues - Body spaces (sinuses) - Back to heart via diffusion
It is when the blood passes through the heart once or twice.
Single and Double Circulation
TRUE OR FALSE
The oxygenated blood from the body enters the atrium via the sinus venosus.
FALSE; Deoxygenated Blood
What are the two pumping circuits in the double circulation?
The Pulmonary Circuit & The Systematic Circuit
This is where the blood that passes through the respiratory capillaries will be returned to the heart first instead of going directly to the systematic capillaries.
Double Circulation
What are two unique arteries and veins?
Pulmonary Arteries & Pulmonary Veins
All arteries carry oxygenated blood away from the heart except for the __________, which carry deoxygenated blood away from the heart to the lungs.
Pulmonary Arteries
All veins carry deoxygenated blood toward the heart except for the __________, which carry oxygenated blood from the lungs to the heart.
Pulmonary Veins
What is the challenge in a double circulation?
The challenge would be preventing the mixing of deoxygenated blood from the veins and oxygenated blood from the lungs that will both pass through the heart.
Pulmocutaneous comes from the words pulmo and cutaneous, which means ______ and _______, respectively.
Lungs and Skin
This circuit is responsible for bringing blood to the skin for gas exchange to occur.
Pulmocutaneous Circuit
What are the two groups of the ventricle?
Left Atrium and Left Ventricle & Right Atrium and Right Ventricle
These receive and pump oxygenated blood.
Left atrium and left ventricle
These receive and pump deoxygenated blood.
Right atrium and right ventricle
What is the purpose of the sinus venosus in the vertebrate heart?
To be a pacemaker – the origin of the impulses that initiate the heartbeat.
This is the tissue that persists in the right atrial wall of mammalian and avian hearts.
Sinoatrial (SA) node
It is also known as warm-blooded animals that have the ability to maintain their internal body temperature independent of the environment.
Endotherms
What are the three physical characteristics of blood?
Metallic taste, sticky, and opaque
What is the pH of blood?
Ranges from 7.35 and 7.45 (slightly alkaline or basic)
How much blood represents the total body weight in a human body?
8%
How much blood does an adult female have?
4 to 5 liters
How much blood does an adult male have?
5 to 6 liters