BIO EXAM 1 (questions got correct)

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Which of the following is the site where gas exchange takes place?

Capillaries

Which type of anemia is a result of immune cells attacking and destroying RBCs?

Hemolytic

19 y/o male w/ trauma to his right leg — Which type of anemia is LIKELY the cause?

Hemorrhagic

As rate of exercise increases, your cardiac output

raises toward a maximum

An undesirable thickening of blood vessel walls:

arteriosclerosis

Capillaries that have a complete lining are called

continuous capillaries

Factors involved in extrinsic clotting pathway

2, 1, 6, 4, 3, 5

Which of the following is a function of blood?

A and B (temperature regulation, immune response)

Which of the following can help regulate blood pressure?

All of the above

Which of the following is the site where resistance to blood flow is greatest?

Arterioles

Which of the following DOES NOT increase blood pressure?

Atrial natriuretic peptide

_________ is the regulation of blood flow by local mechanisms within a capillary bed

Autoregulation

Which of the following releases histamine and heparin and also contains granules?

Basophil

WBC that releases histamine as site of injury

Basophils

Which of the following might trigger erythropoiesis?

Decrease blood flow to the kidneys

At what sites in the body are fenestrated capillaries located? (Module 19.3B)

Fenestrated capillaries are located in endocrine glands, the choroid plexus of the brain, absorptive areas of the intestine, and filtration areas of the kidneys.

Which of the choices below doesn't explain why low capillary pressures are desirable?

Low blood pressure is associated with longer life span than high blood pressure

Sensory neurons that are part of the chemoreceptor reflexes are found in all of the following EXCEPT the

Lungs

Compare the types of cells that lymphoid stem cells and myeloid stem cells produce. (Module 17.3C)

Lymphoid stem cells give rise to lymphocytes. Myeloid stem cells give rise to all the formed elements except lymphocytes.

Which of the following has a multi-loved nucleus, acts as a phagocyte, and contains granules?

Neutrophil

Which of the following is most abundant WBC?

Neutrophil

During hemostasis, prothrombinase acts as an enzyme for which reactant?

Prothrombin

Red blood cells are anucleate, meaning:

They have no nucleus

Which factors involved in formation of varicose veins? (Module 19.4D)

Varicose veins form when vein walls weaken and valves fail so blood begins to pool in the veins

Varicose veins are a disorder of:

Venous valves

Where are red blood cells formed?

bone marrow

Capillaries with a perforated lining are called

fenestrated capillaries

Formation of blood cells is called:

hematopoiesis


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