Unit 2 Flashcards
Animal Physiology
Which chamber pumps oxygenated blood away from the heart?
Left ventricle
What is the Bowman’s capsule?
A cup of hollow cells where ultrafiltration happens
Where is bile stored?
In the gall bladder
Which blood vessel brings deoxygenated blood to the heart?
Vena cava
What happens to the eye when focusing on a nearby object?
-Ciliary muscles contract
-Suspensory ligaments slack
-Lens becomes circular
What happens to the eye when focusing on a distant object?
-Ciliary muscles relax
-Suspensory ligaments are pulled tight
-Lens becomes flat
What happens in vasoconstriction?
-Blood flows through deeper vessels
-Blood vessels constricted
- Less heat is radiated
What is an immune response?
When the body responds to pathogens by producing antibodies.
What are some factors that increase the chance of coronary heart disease?
-Smoking
-High blood pressure
-Diet
-Lack of exercise
What is the role of capillaries?
Carrying blood through the organs, by being close to every cell in the organ
Explain the difference in the walls of the left ventricle and the right ventricle.
The walls of the right ventricle are thinner and contain less muscle so it has a lower blood pressure.
What is the positive color change for biuret test?
Blue to purple
Describe the structure of an vein
They contain a thin wall with little muscle fibers and a large lumen.
What is coronary heart disease?
When the coronary arteries are blocked by fatty substances which cut off blood supply to the heart. This means the cardiac muscle can no longer respire, resulting in a heart attack.
What is the positive color change for glucose test?
Blue to brick-red