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Physio Study Stack 2

Study Stack 2

QuestionAnswer
What is the main functional difference between the autonomic and somatic nervous systems? The somatic nervous system controls voluntary skeletal muscle movements, while the autonomic nervous system controls involuntary processes like heart rate, digestion, and gland activity.
Which branch of the autonomic nervous system is responsible for “fight or flight”? The sympathetic nervous system.
Which type of motor pathway uses two neurons in sequence (preganglionic and postganglionic)? The autonomic nervous system.
What hormone is released by the thyroid gland to regulate metabolism? Thyroxine (T4), along with small amounts of triiodothyronine (T3)
Which endocrine gland releases cortisol during stress? The adrenal cortex.
What hormone from the pancreas lowers blood glucose? Insulin
What is the main function of systemic circulation? To deliver oxygenated blood to the body’s tissues and return deoxygenated blood to the heart.
Which vessels carry blood back to the heart? Veins
What structure prevents backflow of blood in the veins? One-way valves.
Q: What is the primary function of the lymphatic system? To return excess interstitial fluid to the bloodstream and support immune function.
Where does lymph from the right arm drain into the bloodstream? the right lymphatic duct
What type of cell is most abundant in lymph nodes? Lymphocytes.
What substance emulsifies fats in the small intestine? Bile
What structure transports absorbed fats into the bloodstream? Lacteals, which are lymphatic capillaries in the villi of the small intestine.
How do the kidneys help regulate blood pH? By excreting hydrogen ions and reabsorbing or producing bicarbonate to buffer acids.
Created by: user-1989113
 

 



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