An endoscope for insertion into a small body cavity like a nostril and a sinus, the endoscope comprising: a control section having portions defining a working channel port; an insertion tube extending from the control section, the insertion tube having a first section and a second section, the first section defining a longitudinal axis and defining a first lumen extending through the first section, the first section having a proximal end connected to the control section, the second section defining a second lumen extending through proximal and distal ends (34, 52) of the second section, the proximal end of the second section being connected to a distal end of the first section, the second section being bendable with respect to the first section, the second lumen being in communication with the first lumen, wherein the second section includes a passive deflection section and an active deflection section, the passive deflection section being connected to and extending from the distal end of the first section, the active deflection section extending from the passive deflection section to the distal end of the second section; a working channel tube disposed within the first and second lumens (48, 50), the working channel tube defining a working lumen extending through proximal and a distal ends (62, 63) of the working channel tube, the working lumen being in communication with the working channel port; and a grip portion connected to the control section, wherein the insertion tube and the control section are rotatable with respect to the grip portion, characterized in that the second section is formed of shape memory alloy; the endoscope further comprises a wire sheath disposed within the first and second lumens (48, 50), the wire sheath having an interior region and being made of shape memory alloy; and the endoscope further comprises a single control cable attached to the distal end of the second section of the insertion tube, only the single control cable extending through the interior region of the wire sheath, the control cable being operable to deflect the active deflection section but not the passive deflection section when the control cable is pulled. a control section having portions defining a working channel port; an insertion tube extending from the control section, the insertion tube having a first section and a second section, the first section defining a longitudinal axis and defining a first lumen extending through the first section, the first section having a proximal end connected to the control section, the second section defining a second lumen extending through proximal and distal ends (34, 52) of the second section, the proximal end of the second section being connected to a distal end of the first section, the second section being bendable with respect to the first section, the second lumen being in communication with the first lumen, wherein the second section includes a passive deflection section and an active deflection section, the passive deflection section being connected to and extending from the distal end of the first section, the active deflection section extending from the passive deflection section to the distal end of the second section; a working channel tube disposed within the first and second lumens (48, 50), the working channel tube defining a working lumen extending through proximal and a distal ends (62, 63) of the working channel tube, the working lumen being in communication with the working channel port; and a grip portion connected to the control section, wherein the insertion tube and the control section are rotatable with respect to the grip portion, the second section is formed of shape memory alloy; the endoscope further comprises a wire sheath disposed within the first and second lumens (48, 50), the wire sheath having an interior region and being made of shape memory alloy; and the endoscope further comprises a single control cable attached to the distal end of the second section of the insertion tube, only the single control cable extending through the interior region of the wire sheath, the control cable being operable to deflect the active deflection section but not the passive deflection section when the control cable is pulled.