Flashcards in Q&A Thorax and Abdomen Deck (410)
What are the two major parts of a typical vertebra?
Body and arch
What is an intervertebral foramen?
Opening between adjacent vertebrae allowing passage of the spinal nn.
How do ribs articulate with the thoracic vertebrae?
Head articulates with bodies of contiguous vertebrae and the tubercle articulates with the transverse process of same numbered
What is the name of the space between two adjacent ribs?
Intercostal space (ICS)
What do the costal cartilages of the last sternal and all asternal ribs form?
What are the first and last sternebrae?
Manubrium and xiphoid, respectively
What caps the xiphoid process?
what thoracic vertebrae usually has the most vertically oriented spine?
Anticlinal vertebrae, usually T11 in dog
How is inspiration accomplished?
Increased size of thorax decreases pressure = air rushes in
What is the main respiratory muscle?
Name the 2 muscles extending between adjacent ribs.
External and internal intercostal mm.
What is the opening into the thorax?
What forms the thoracic inlet?
1st thoracic vertebra, right and left 1st ribs and sternum
What palpable structure is formed by the costal cartilages of the false ribs?
What divides the thorax into two spaces?
Where is the heart located in the thoracic cavity?
(2nd) 3rd to (5th) 6th intercostal space (ICS) in the bottom 2/3rds of the cavity
Which side of the aorta does the thoracic esophagus normally cross?
Right side of the aortic arch
What covers the trachea in the cranial neck?
Only strap muscles (sternohyoideus and sternothyroideus mm)
What part of the trachea splits into right and left primary bronchi?
What separates lobes of the lungs?
What is the opening between the lobes of the lung where the surgeon's pericardium comes in contact with the thoracic wall?
What do radiologists call the pulmonary trunk?
Main pulmonary artery/segment, MPA
What is the mediastinum?
Space or wall (depending on text read, wall makes parietal work for the pleura) separating the thoracic cavity into 2 cavities and thus, separating the 2 pleural cavities
What are the divisions of the mediastinum?
Cranial, middle (contains heart), and caudal (all divided into dorsal and ventral parts)
List the parts of the pericardium.
Fibrous pericardium, serous pericardium (visceral and parietal parts)
What is located in the pericardial cavity?
scant amount of serous fluid only
which side of the heart is part of the pulmonary circulation?
Right side: pulmonary side
The left side of the heart is part of what circulation and why?
Systemic circulation, pumps blood to body
What side of the heart is the right ventricle on? Left ventricle?
Right: cranial (right, cranial, and left sides); left: caudal