CAR revision tasks

Question 1

Why can mammals not breathe when swallowing

Answer 1

during swallowing the larynx is closed by the vocal folds to prevent aspiration of food/water

Question 2

What structures separate the oral and nasal cavities

Answer 2

Hard and soft palate

Question 3

What is the position of the soft palate during swallowing

Answer 3

Lifts up (dorsally) to allow food to pass into the laryngopharynx

Question 4

What is the position of the soft palate during chewing and sucking

Answer 4

Ventral (under) to the epiglottis

Question 5

Label this diagram

Answer 5

Question 6

How do non-mammals deal with combining breathing and eating?

Answer 6

swallow quickly, rely on vocal folds to close the glottis

Question 7

Clinical signs of a blocked nasal cavity

Answer 7

Noisy respiration
Mouth breathing
Nasal discharge
Facial distortion
Sneezing

Question 8

Clinical signs of a blocked oral cavity

Answer 8

Inappetance
dysphagia
aphagia
distress.rubbing/pawing at the mouth
sialorrhea (dribbling)
ptyalism (hypersalivation)
protrusion of tongue

Question 9

What conditions may affect prehension

Answer 9

facial paralysis
botulism

Question 10

What conditions may affeect chewing/biting

Answer 10

broken jaw
TMJ pain
dental disease

Question 11

What conditions may affect swallowing

Answer 11

botulism
pharyngitis
foreign body