The larynx, trachea and lungs comparative anatomy

Card Set Information

Author:
Anonymous
ID:
294872
Filename:
The larynx, trachea and lungs comparative anatomy
Updated:
2015-02-04 12:53:20
Tags:
Anatomy Laryx Trachea
Folders:

Description:
Vet Med - Module 9
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards. What would you like to do?


  1. Why is the horse an obligate nose breeder?
    The caudal pillars of the soft palate form a cuff around the larynx causing it to be positioned high up within the nasopharynx
  2. Give two anatomical adaptations which allow the horse to increase the airflow to the lungs when it is doing vigorous exercise
    Dilation of nostrils, constriction of blood vessels in the nasal cavity
  3. What other name is given to the lateral food channel which allows fluid to pass around the laryngeal adieus into the oesophagus?
    Primiform recess
  4. Which cartilage(s) articulate directly with the hyoid apparatus?
    Thyroid - articulates with the thyrohyoid bones
  5. What is the function role played by the epiglottis and glottis during swallowing?
    • Epiglottis - partially covers the aditus, tips caudally
    • Glottis - closed by the lateral cricoarytenoid and transverse arytenoid muscles
  6. What is the function of the dorsal cricoarytenoid muscles and what is their innervation?
    • Function - abduction of the glottis
    • Innervation - caudal recurrent laryngeal nerve
  7. What is the function of the lateral cricoarytenoid muscles and what is their innervation?
    • Function - adduction of the glottis
    • Innervation - caudal recurrent laryngeal nerve
  8. Where is the tracheal is muscle located in horses - dorsal or ventral to the edges of the tracheal rings?
    Ventral (only dorsal in carnivores)
  9. What is the function and innervation of the transverse arytenoid muscle?
    • Function - adduction of the glottis
    • Innervation - caudal recurrent laryngeal nerve
  10. Where does the laryngeal adieus sit in relation to the nasopharynx/common pharynx in the bovine?  What is the functional relevance of this?
    • Sits on the ventral floor of the common pharynx
    • Cows can breathe through their mouth
  11. Name the individual bones of the hyoid apparatus
    Stylohyoid, epihyoid, ceratohyoid, basohyoid, thyrohyoid
  12. What major structures enter and leave the lung at the hilus?
    Primary bronchi, pulmonary arteries, pulmonary veins
  13. Name the individual lobes of each lung in the dog
    • Left - cranial (divided into cranial and caudal parts), caudal
    • Right - cranial (divided into cranial and caudal parts), middle, caudal, accessory
  14. Name the lobes of the lung in the horse
    • Left - cranial, caudal
    • Right - cranial, caudal, accessory
  15. Does the horse have a tracheal bronchus?
    No
  16. Name the lobes of the lung in ruminants
    • Left - cranial (divided into cranial and caudal parts), caudal
    • Right - cranial (divided into cranial and caudal parts), middle, caudal, accessory
  17. Do ruminants have a tracheal bronchus?
    Yes
  18. Which major vessels and nerves lie within the carotid sheath and which major nerve lies just outwith the carotid sheath?
    • Within - common carotid artery, internal jugular vein, vagosympathetic trunk
    • Outwith - recurrent laryngeal nerve
  19. On radiographs, how does the appearance of the diaphragm differ depending on whether the animal is in right or left recumbency?
    • Right - viscera weight forces the right crus cranial to the left
    • Left - the left crus is forces cranial to the right crus
  20. How does a radiography of the thorax of a cat differ from that of a dog?
    Shape of thorax is more elongated, angle of the heart is different, presence of a clavicle

What would you like to do?

Home > Flashcards > Print Preview