Respiratory System Msc Physiotherapy. Pub? PHP7011

Role of the nasal conchae?

• To Allow diffusion

• To humidify, warm and slow down the air inspirated

• To Expel carbon dioxide

• Thromboxane A2

What do goblet cells secrete?

• Dendrites

• Mucous

• Hemoglobin

• Alveoli

What do type II Alveoli do?

• Very thin layer of squamous epithelial cell, makes 97% of alveolar surface area, highly permeable

• Secrete surfactant, detergent like substance composed of phospholipids and proteins that reduces surface tension

• Secrete cilia

• Secrete Goblet cells

What is Boyles Law?

• If volume is higher pressure is higher.

• The volume of a gas and pressure are inversely proportional at a given temperature

• Propulsion of foreign bodies out of the lung

• Vasoconstricts when foreign bodies arrive.

Haldane effect describes how oxygen concentrations determine hemoglobin's affinity for carbon dioxide.

Bohr effect describes how carbon dioxide and H+ affect hemoglobin affinity for oxygen.

• True

• False

What disease has low lung compliance?

• COPD

• Emphysema

• Pulmonary Fibrosis

• Pulmonary Embolism

Medulla affects rate of breathing

Pons activates muscles

• True

• False

What receptor can detect changes in PH in the brain tissue?

• Baroreceptors

• Obstructive

• Central Chemoreceptors

• Peripheral Chemoreceptor

What is the average ventilation (V) perfusion (Q) ratio. V/Q

• 1

• 0.9

• 0.8

• 1.8

What V/Q ratio describes pulmonary shunt? Perfusion but no ventilation

• 1

• 0.8

• 0

• Infinity