Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Lecture 1.3
Element 1- Anatomy: The Thorax
| Question | Answer |
|---|---|
| What type of muscle is the diaphragm? | Skeletal |
| Which nerve innervates the diaphragm and what are it's nerve roots? | Phrenic nerve, originates from C4/5/6 |
| Describe the action of the diaphragm during respiration | It domes downwards to suck air in on an inhale and domes inwards to push air out on an exhale |
| Where are the intercostal nerves located? | Between the ribs |
| Where is the sternocleidomastoid muscle? | Originates from the mastoid and runs to the sternal end of the clavicle |
| How does the sternocleidomastoid muscle assist with respiration? | They lift the ribcage up and away to allow more lung space |
| Where are the scalenes located? | They originate from the transverse process of C2/3/4/5/6/7 and run to the 1st and 2nd rib. |
| How do the scalene muscles assist in respiration? | They lift the ribcage up to expand the lungs |
| Where are the pecs located? | Upper arm to sturnum |
| How do the pecs assist with respiration? | Expand rib cage when the arms are fixed |
| How do the erector spinal muscles assist with respiration? | They extend the spine, therefore allowing the ribcage to expand fully |
| To which nodes does the majority of lymph from the breast drain? | Axillary nodes in the armpit |
| Where is quadratus lumborum? | Joins the iliac crest to the bottom of the 12th rib |
| How does quadrates lumborum assist with respiration? | Fixes the lower part of the ribcage |
| Is the fibrous pericardium thick or thin? | Thick |
| Does the fibrous pericardium stretch easily? | No it doesn't stretch |
| To what is the fibrous pericardium fused to interiorly? | Diaphragm |
| Is the parietal serous pericardium which or thin? | Thin |
| To what is this parietal serous pericardium adhered to? | The fibrous pericardium |
| What lies between the parietal serous pericardium and the visceral serous pericardium? | A small amount of serous/ pericardial fluid |
| Is the visceral serous pericardium thick or thin? | Thin |
| What is the visceral serous pericardium adhered to? | The myocardium |
| What is the plane that divides the superior and inferior mediastinum called? | Plane of Louis |
| At what vertebral level does the Plane of Louis lie? | T4/5 |
| What is the surface landmark of the Plane of Louis | Manubo-sternal joint |
| How many cusps has the left atrioventricular valve got? | 2 |
| How many cusps does the right atrioventricular valve got? | 3 |
| How does the atrioventricular valve function? | Flow of blood pushes muscles and heart strings so the valve opens. Chordae tendinae prevents the valve from inverting |
| how many cusps are there in each semilunar valve? | 3 |
| From where to the right and left coronary arteries arise? | aortic sinus |
| What muscles do the coronary arteries supply? | the myocardium |
| Where does the coronary sinus collect venous blood from? | myocardium |
| From what are the tracheal rings compromised of? | cartilage |
| What type of muscle is the trachealis muscle? | smooth |
| What type of epithelial lining does the trachea have? | respiratory epithelium. ciliated to secrete and waft mucous up the trachea to be swallowed. keeps trachea clean |
| To which structures in the parietal pleura adhered to? | thoracic wall and diaphragm |
| to which structures in the visceral pleura adhered to? | lungs |
| What do the pleuras secrete and into which space? Why? | Pleural fluid into the pleural cavity. for lubrication to allow the lungs to expand |
Created by:
macdonkr
Popular Anatomy sets