The most superior part of the pharynx known as the ……… contains the pharyngeal tonsils, and functions as an air passage only.

Which one of the following immune cells secretes antibody to eliminate the infective pathogens?

The …………. is the blood component that transports the oxygen from the lung to the tissue cells.

Lymphocytes develop and mature in the secondary lymphoid organs and are activated by antigen-presenting cells in the primary lymphoid organs, such as the thymus.

The ……………. functions like a lid that covers the larynx to prevent food and water from entering the respiratory system.

The …………. cartilage is a prominent cartilage of the larynx that is also known as “Adam’s apple”.

The innate immune cells recognize and eliminate the pathogens via the interaction of the PRRs on the immune cells with the PAMPs on the pathogens.

This immune cell kills target pathogen by apoptosis via secreting perforin and granzyme.

The specific site on the antigen that binds the TCR is known as ………….

The nasal septum divides the nasal cavity into two compartments. The ……… bone makes the superior part of the nasal septum: