Thoracic System Flashcards
“True” ribs include:
a. ribs 1 & 2
b. ribs 8-10
c. ribs 11 & 12
d. all ribs are “true” ribs
a. ribs 1 & 2
The manubrium of the sternum articulates with:
a. rib 1
b. body of sternum
c. the xiphoid process
d. both a & b
e. both b & c
d. both a & b
Which part of the rib articulates with the vertebral body?
a. head of rib
b. tubercle of rib
c. costal groove
d. angle of rib
a. head of rib
What muscle(s) is/are considered the primary muscle of respiration?
a. diaphragm
b. serratus posterior
c. internal intercostals
d. external intercostals
a. diaphragm
Diaphragm is innervated by?
Phrenic nerve (C3-C5 of cervical plexus)
Which of the following muscles elevate the ribs during inspiration?
a. Transversus thoracis
b. Internal intercostals
c. Diaphragm
d. External intercostals
d. External intercostals
The lungs are covered by:
a. Parietal pleura
b. Fibrous pericardium
c. Visceral pleura
d. Visceral pericardium
c. Visceral pleura
Bronchial veins drain into the:
a. Superior vena cava
b. Azygos and hemiazygos veins
c. Subclavian vein
d. Inferior vena cava
b. Azygos and hemiazygos
The heart and lungs receive sympathetic innervation primarily via which of the following pathways?
a. Spinal nerve pathway
b. Postganglionic sympathetic pathway
c. Splanchnic nerve pathway
d. Adrenal medulla pathway
b. Postganglionic sympathetic pathway
Which of the following structure(s) make(s) up the superior boundary of the mediastinum.
a. pleura
b. diaphragm
c. thoracic vertebrae
d. thoracic inlet
e. costal cartilage
d. thoracic inlet
Which of the following structure(s) is/are found in the middle part of the inferior mediastinum?
a. fat and lymph tissue
b. cardiac and autonomic nerve plexuses
c. the heart and its pericardial tissues
d. the thoracic aorta
e. thoracic splanchnic nerves
c. the heart and its pericardial tissues
The base of the heart is primarily formed by the:
a. right atrium
b. left atrium
c. right ventricle
d. left ventricle
e. coronary sinus
b. left atrium
The pericardium of the heart has three primary layers. If the pericardium of the heart is pierced by a needle, which of these primary layers would the needle first pass through?
a. visceral pericardium
b. pleural pericardium
c. parietal pericardium
d. fibrous pericardium
e. epicardium
d. fibrous pericardium
In the adult heart, the fossa Novalis can be viewed in the:
a. right atrium
b. left atrium
c. right ventricle
d. left ventricle
e. The fossa ovalis cannot be viewed in adult heart because it is a fetal structure
a. right atrium
Semilunar valves function similar to the:
a. pulmonary valve
b. aortic valve
c. venous valves
d. arterial valves
c. venous valves
