A&P II Test 2

The respiratory system functions to

Exchange oxygen and carbon dioxide with the external environment

Regulate blood pH

Produce sounds

Defend against airborne pathogens

None of the above

Transformation of cholecalciferol to the active form of vitamin D requires

A hydroxylation step in the liver

A hydroxylation step in the kidney

A hydroxylation step in the thymus

A hydroxylation step in the bone marrow

None of the above

Plastic pollution is an emerging concern worldwide, with the majority of studies focusing on

Macroplastics

Microplastics

Plastic particles with a longest dimension > 5mm

None of the above

Endocrinocytes

Are also called Brunner's glands

Are located at the terminal ends of pancreatic ducts

Secrete pancreatic juice

None of the above

Multiple sclerosis

Is a demyelinating disease of the peripheral nervous system

Is a autoimmune disease

Development and occurrence has been associated with low vitamin D levels

None of the above

Inspiration is caused by changes in transpulmonary pressure as a result of

Relaxation of the diaphragm

Contraction of the alveoli

None of the above

The biopersistence of inhaled fibrous microplastics is related to

Their durability in the lung

Their clearance from the lung

Their length

None of the above

You would find deep lymphatic collecting vessels

Traveling with/following same routes

In the subcutaneous tissue of the skin

None of the above

Factors that affect serum vitamin D levels include

Alveoli

Have walls that are one cell thick

Have walls that contain capillaries in dense beds

Are sites of gas exchange

Have cells that produce surfactant

None of the above

Dalton's law states that

In a closed container at constant temperature, volume, and pressure are inversely related

In a closed container at constant temperature, volume and pressure are directly realted

The total pressure of gas mixture is equal to the sum of partial pressures of the gases in the mixture

None of the above

Epitopes are

Part of an antibody

A class of proteins called immunoglobulins

None of the above

Consider 10 molecules of Hemoglobin. To saturate all hemoglobin binding sites with oxygen, you would need

Acquired immunity

Airborne fibrous microplastics may carry pollutants adsorbed from the surrounding environment due to their

Hydrophobic surface

Hydrophillic surface

Amphipathic surface

None of the above

Complement proteins

Are part of our adaptive immune response

Include proteins that may serve as the chemical agents that attract neutrophils

Include proteins that may attach to foreign cells macrophages to ingest them

Include proteins that may interact with immune antibodies to make them more effective

None of the above

Which of the following can impact the flow of air in the respiratory system

If atmospheric partial pressure =2mmHg, and alveolar partial pressure =0mmHg, then

Peritoneal fold that is a site of fate deposition in people who are overweight

Lesser omentum

Falciform ligament

Mesocolon

None of the above

Lymph

Is moved/propelled by pulsations of nearby arteries

Flows away from the heart

Is moved/propelled by contractions of smooth muscles in the walls of lymphatic vessels

None of the above

Humoral immune response

Is associated with innate immunity

Results primarily from the action of T-cells

None of the above

Lymphatic capillaries

Are also called terminal lymphatics

Begins as blind ended tubes forming a closed system like that of your cardiovascular system

Carry lymph towards the heart

None of the above

Total dead space

Include anatomical dead space

Include alveolar dead space

Represents all of the air in the respiratory system that is being used in the gas exchange process

None of the above

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A&P II Test 2

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