Unit 5 Assessment: Body Defenses and the Respiratiory System

Which of the following is a primary function of the immune system?

• To transport oxygen to cells

• To defend the body against pathogens

• To produce hormones

• To regulate body temperature

What type of immunity is acquired through vaccination?

• Innate immunity

• Passive immunity

• Active immunity

• Natural immunity

Which structure is part of the upper respiratory system?

• Trachea

• Bronchi

• Larynx

• Alveoli

What is the primary site of gas exchange in the respiratory system?

• Bronchi

• Alveoli

• Trachea

• Larynx

Which of the following is a defense mechanism in the lungs?

• Production of bile

• Cough reflex

• Saliva secretion

• Peristalsis

What is the main component of lymph?

• Red blood cells

• Platelets

• Plasma

• White blood cells

Which organ is primarily responsible for filtering lymph?

• Liver

• Spleen

• Kidney

• Pancreas

Which type of immunity involves antibodies transferred from mother to child?

• Active immunity

• Passive immunity

• Innate immunity

• Adaptive immunity

What is the role of the diaphragm in respiration?

• To filter air

• To produce sound

• To contract and expand the lungs

• To exchange gases

Which of the following cells are involved in the adaptive immune response?

• Neutrophils

• Erythrocytes

• T cells

• Platelets