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Pachacha [2.7K]
3 years ago
5

Which of the following statements about the response of arteriolar smooth muscle to changing oxygen partial pressures is TRUE?

Biology
1 answer:
KengaRu [80]3 years ago
6 0

Answer:

C. Systemic arterioles respond to a decrease in PO₂ by dilating, but pulmonary arterioles constrict in response to decreased PO₂.

Explanation:

In the arterioles, vasoconstriction is a response to high oxygen while vasodilation is a response to carbon dioxide and low pH. However, in the pulmonary arterioles, vasoconstriction occurs as a response to low oxygen and this mechanism is called hypoxic pulmonary vasoconstriction (HPV).

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A client reports sharp and stabbing chest pain that worsens with deep breathing and coughing. A cardiac cause to this pain is ru
d1i1m1o1n [39]

Answer:

Pleurisy

Explanation:

Pleurisy is a medical condition caused by the inflammation of the pleura membranes. The pleural membranes are vital part of the respiratory system. These membranes which surround the lungs and lines the inner chest wall, help to give cushion and reduce friction in the lungs. When the pleural membranes become inflamed, the surfaces become tough and sticky, thereby causing the sharp pain the person feels in the chest while breathing.

7 0
3 years ago
Which of these is the correct order through which oxygen enters the body?
meriva
The correct order that oxygen enters the body is definitely C.
Bronchi, then Lungs, bronchioles, alveoli, blood!

Good luck!! 
3 0
3 years ago
Which structure would be unaffected by the peripheral nervous system?
Sphinxa [80]
For the answer to the question above, the peripheral nervous system governs <span>all structures outside the brain and spinal cord. Peripheral nerves branch from the spinal cord through the foramen transversarium of each vertebrae. I suppose the structure it would not affect is the brain itself since cranial nerves are responsible for brain activity. Also, the spinal cord would also be unaffected since it is just a cylindrical bundle of nerve fibers that allow the connection of the peripheral nerves to the brain.</span>
6 0
3 years ago
Which of the following might you use to help you make observations?
SCORPION-xisa [38]

Answer:

Touching, Smelling.

Explanation:

Touching will be useful to detect stimuli like coldness and hotness.

Smelling on the other hand will help to make observations on smell and change in smell. These two are among the five senses that we use to make observations as we record what we see, hear, touch and feel, smell and taste.  

7 0
3 years ago
Cultural anthropologists would likely study all of the following topics except for ___________________________.
max2010maxim [7]
I think it is A. I hope this helps
5 0
3 years ago
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