nerwy

In a sentence

• Mam nerwy przez egzamin.

  I'm nervous because of the exam.

  Here, 'nerwy' implies nervousness or worries, a metaphorical use for emotional tension.

• Potrzebuję uspokoić moje nerwy.

  I need to calm my nerves.

  In this sentence, 'nerwy' refers to mental or emotional calmness, often implying stress or tension affecting a person's state.

• Układ nerwowy jest kluczowy dla zdrowia.

  The nervous system is crucial for health.

  Here, 'nerwy' within 'Układ nerwowy' directly relates to the biological nervous system in a medical or scientific sense.