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A&P Exam 2 Questions and Answers | Latest Version | 2024/2025 | Already Passed $9.99   Add to cart

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A&P Exam 2 Questions and Answers | Latest Version | 2024/2025 | Already Passed

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A&P Exam 2 Questions and Answers | Latest Version | 2024/2025 | Already Passed What is the primary function of the respiratory system? To facilitate the exchange of oxygen and carbon dioxide between the blood and the environment. How does the structure of the alveoli contribute to ga...

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  • August 20, 2024
  • 28
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • A&P Exm 2
  • A&P Exm 2
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A&P Exam 2 Questions and Answers |
Latest Version | 2024/2025 | Already
Passed
What is the primary function of the respiratory system?




✔✔ To facilitate the exchange of oxygen and carbon dioxide between the blood and the

environment.




How does the structure of the alveoli contribute to gas exchange?




✔✔ The alveoli are thin-walled and surrounded by capillaries, allowing efficient diffusion of

gases between the air and blood.




What role does the diaphragm play in breathing?




✔✔ The diaphragm contracts and flattens to increase thoracic cavity volume, creating negative

pressure that draws air into the lungs.




What is the function of the sinoatrial (SA) node in the heart?
1

,✔✔ The SA node acts as the primary pacemaker, initiating electrical impulses that regulate the

heart's rhythm.




How do the kidneys maintain homeostasis?




✔✔ The kidneys regulate fluid balance, electrolyte levels, and remove waste products from the

blood through filtration and excretion.




What is the function of the myelin sheath in the nervous system?




✔✔ The myelin sheath insulates axons, increasing the speed and efficiency of nerve impulse

transmission.




How does the skeletal system contribute to movement?




✔✔ The skeletal system provides a framework for muscles to attach, allowing for movement

through lever actions.




2

, What is the role of neurotransmitters in synaptic transmission?




✔✔ Neurotransmitters are chemical messengers that transmit signals across synapses from one

neuron to another.




How does the endocrine system regulate metabolism?




✔✔ The endocrine system releases hormones that regulate metabolic processes, including

growth, energy production, and homeostasis.




What is the function of the lymphatic system in the body?




✔✔ The lymphatic system returns excess interstitial fluid to the bloodstream and helps defend

the body against infections.




What is the primary function of the integumentary system?




✔✔ To protect the body from external damage, regulate temperature, and provide sensory

information through the skin, hair, and nails.

3

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