Other Flashcards
What does the diaphragm do
Closes thoracic outlet
Comprises radial muscle fibres into central tendon
Dimes upward more on the right
Pastures allow things to pass through
What passes through the diaphragm
Oesophagus
Aorta
Inferior vena cava
What are the internal intercostal muscles
External intercostal
Internal intercostal
Inner most intercostal
What are the venison nerves and artery’s called supplying the intercostal muscles
Intercostal nerve artery, vein
How does the thoracic cage move
Superior and anterior
Ribs move upward like a bucket Handel
What are the sub decisions of the thoracic cavity
Mediastinum (middle of lungs)
Pleural sacks around the lungs
What is the visceral pleura
This is the inner membrane surrounding the lungs
What is the parietal pleura
This is the outer membrane in contact with the ribs
What lobes does the right king have
Superior
Middle
Inferior
What Kobe’s does the left lung have
Superior
Inferior
What is the oblique fissure
The diagonal one
What is the horizontal fissure
This is the fissure in the right lung that separates the superior and middle lobes
What is the HILUM of the lung
This is the part of the lung where the bronchi, pulmonary artery, pulmonary veins and pulmonary ligament attach/enter/leave
What is the perimysium
Layer around fascicles
What is the epimysium
Outer layer of muscle
What is the endomysium
Inner layer
What is a fascicles
Bundle of muscle cells
How are muscles cells formed
Myoblasts fusing
What are all the different bands in sarcomeres
A band length of myosin
I band length actin alone
H zone myosin alone
M like is middle z disk is boundary of sarcomere
What does myosin contain
Motor domains (heads) Have chains
What is the bare zone on the myosin strip
This is where there are no myosin heads just interlocking heavy chains
What is actin made of
Globular actin monomers
What are the regulatory filaments in muscle contraction
Tropomyosin and troponin
What happens to expose binding sites
Ca binds to troponin causing tropomyosin to move exposing these sites