Which of the following has a 4-chambered heart like human?
D. A and B
Which structure does blood pass through immediately before entering the right atrium?
C. vena cava
Major cardiovascular disorders include all of the following EXCEPT:
B. diabetes
Veins primarily depend upon which of the following forces to return blood to the heart?
D. skeletal muscle contraction
The fluid under a blister or the lymph tha bathes the interstitial spaces between organs is very watery compared with the viscosity of blood plasma. Why?
A. large molecules, such as plasma albumin, never cross the capillary wal into tissue fluid
The greek root words for "heart" and "vessels" underlies the term:
E. cardiovascular
The primary function on the pulmonary circuit is:
D. the release of carbon dioxide and the absorption of oxygen by the blood
A person who is B positive will have:
A. B antigens, antibodies to A, and Rh antigens
Cnidaria and flatworms exchange gases and remove wastes by way of their:
B. gastrovascular cavities
Which structure does blood pass through immediately before it enters the left ventricle?
B. atrioventricular valve
What 2 forces control the movement of fluid through the capillary wall?
B. blood pressure and osmotic pressure
The latin root word for "great artery" underlies the term:
A. aorta
Which statement is NOT true about red blood cells?
E. they are mainly produced in the liver
A heart murmur is a distortion of the heartbeat due to blood flowing back through a valve that should be closed. If the heart sound is lub-dub-ssshhh, the most likely cause is a failure of the :
B. atrioventricular valve
The structure that absorbs nutrients from the small intestines and delievers the nutrients in the blood to the liver is the
A. hepatic portal vein
Match the type of circulatory system with the organismin which its found:
1. grasshoppers
2. earthworms
3. clams and oysters
open circulatory system__
closed circulatory system__
open circulatory system__
open circulatory system 1
closed circulatory system 2
open circulatory system 3
The circulatory system is the only way by which an animal can supply oxygen and nutrients to its cells, or remove waste materials from the cells
True of False
False
It is estimated that if all the blood vessels in a human were connected end to end, the total distance would reach around the earth at the equator 2 times.
True of False
True
Which of these white blood cells are phagocytic?
D. both neutrophils and macrophages
Which best describes an antigen?
B. a protein or polysaccharide that is recongnized as foreign by a cell of the immune system
Which organism has hemglodin located in the fluid portion of the blood, giving it a red apperance?
A. earthworm
What would you find in the heart of an amphibian?
D. 2 atria and one ventricle
The human heart is composed of:
C. all of the choices are correct
Normal blood pressure in a 25 year old person would likely ebe close to ___mm Hg.
A. 120/80
Which kind of white blood cell is involved in the production of antibodies?
E. B lymphocytes
Which would you find in the heart of a fish?
E. 1 atrium and 1 ventricle
Describe the events that occur in the clotting of blood by choosing the correst sequence of statements that outlines the process:
1. platelets and injured tissue release prothrombin activator
2. the activated fragments join end to end, forming long threads
3. platelet clump at the sight of puncture and partially seal the leak
4. fibrin threads wind around the platelet plug in the damaged area and provide a framwork for the clot
5. thrombin, acting a an enzyme, severs 2 amino acid chains (activated fragments) fromo each fibrinogen molecule
6. prothrombin activator converts prothromin to thrombin
7. red blood cells are trapped within the fibrin framework forming a clot.
A. sequence 3,1,6,5,2,4,7
What would you find in the heart of most reptiles?
B. 2 atria and a partially divided ventricle
The vibration felt in arterial walls due ro expansion of the aorta following ventricle contraction is the:
C. pulse
A portal system carries blood from one organ to another without passing throughout the heart
True or False
True
The pacemaker of the cardiac conduction system is the:
D. sinoatrial node
The greek root word for "contraction" underlies the term:
C. systole
The hemocoel is an open space in an insect that contains blood outside of the vessels
True of False
True
The sound of the heartbeat is made when the ventricles contract to pump blood out of the heart.
True or False
False
What would cause youto believe that someone has a heart murmur?
C. irregular heart sounds instead of sharp lub-dub sounds
After leaving out left ventricle, blood next passes through the:
A. semilunar valve
" Artery" and "vein" are defined by whether they leave or enter the heart. If they were defined by whether the carried oxygenated or deoxygenated blood, we would have to change the name(s) of :
E. the pulmonary artery and vein; they would have to be switched
When you step on a cochroach or smash a fly, the blood appears colorless because
B. it does not contin hemoglobin or any other respiratory pigment
Which type of blood component is involved in the initiation of clotting?
B. platelets
The leading cause of preventble death in the US is cardiovascualr disease. Which of the following are lifestyle modifications that would lower a persons risk of CVD?
A. all of the choices are means of lowering rish of CVD
What would you find the heart of a human?
A. 2 atria and 2 ventricles
sphincter muscles regulate the opening and closing of the capillary beds, directing the flow of blood to different areas of the body depending on the bodys needs.
True of False
True
The coronary arteries are important because they serve the:
E. heart
The vessels in our circulatory system that allow molecules to diffuse across to tissues are:
A arteries
B. veins
C. capillaries
D. lymph vessels
E. venules
C. capillaries
All capillary beds have blood running to them at all times
True or False
