respiratory system quiz

what is respiration?

• exchange of gases

• breathe in

• breathe out

• cellular respiration

what membrane sticks to the surface of the lungs?

• mucus

• visceral pleura

• pariteal pleura

• pleural cavity fluid

what does pulmonary ventilation depend upon?

• expiration

• health status

• air pressure and respiratory muscles

• inspiration

what are the primary respiratory muscle(s)?

• external obliques

• pectoralis minor

• scalaeres

• diaphragm and intercostal muscles

what is the PRIMARY regulator of respiration?

• co2

• pH

• o2

• stretch receptors in the lungs

what are the acessory muscles of the respiratory system used for?

• assist in laboured breathing / deep inspiration

• strengthen cardiac muscle

• elevate BP

• to deliver more o2 to tissues

what brain structure(s) is the act of unconsious breathing regulated by?

• medulla oblongata / pons

• pineal gland

• hippocampus / amygdala

• thalamus

where is the inspiratory and expiratory centre located in the brain?

• hypothalamus

• pituitary gland

• medulla oblongata

• pons

what is the role and location of the pneumotaxix centre?

• increases BP, medulla

• stimuates flight/fight response, adrenal glands

• stimulates metabolism, thyroid

• senses/prevents over-inflation of the lungs, pons

what are the SECONDARY regulators of respiration?

• co2

• oz, stretch receptos in the chest/pons, ph, emotions/pain, & irritants

• lungs

• blood flow

• ANP hormone