TI
The thoracic inlet contains this major nerve network that supplies the upper limb.
What is the brachial plexus?
These exercises are commonly recommended to strengthen the pelvic diaphragm.
What is a diaphragm?
The original meaning of the word diaphragm is:
To separate breath from blood
To expand and contract
A wall or partition
A wall or partition
How many diaphragms are in the human body?
4 - Cranial, Respiratory, Thoracic Inlet, Pelvic
These two major arteries commonly pass through the thoracic inlet—one supplies the head and neck, and the other the upper limb.
What are the subclavian artery and the carotid artery?
This diaphragm is responsible for sexual function, continence, stability and efficient movement throughout entire body, and is comprised of which two muscles?
Pelvic diaphragm
Levator ani & coccygeus
The respiratory diaphragm expands and contracts about _____ times per day.
A. 10,000
B. 20,000
C. 30,000
D. 40,000
What is 20,000?
An involuntary spasm of the respiratory diaphragm is also commonly known as what?
What is a hiccup?
If the pelvic diaphragm isn't working appropriately, then it can often lead to this during activities like coughing or sneezing?
What is urinary incontinence?
The upper aperture of the thoracic inlet is comprised of which three bony structures?
First ribs & costal cartilage
Manubrium
Body of T1 vertebrae
What are the origins & insertions of the levator ani muscles?
Levator Ani:
Origin: Pubis, Internal obturator fascia (Tendinous arch)
Insertion: Anococcygeal ligament, coccyx
What are the origins & insertions of the respiratory diaphragm?
It attaches to:
Sternal part: Xiphoid process
Costal part: Inner surfaces of ribs 7–12
Lumbar part: L1–L3 vertebral bodies via crura (tendinous anchors)
The respiratory diaphragm is the only muscle in the body that possesses this unique relationship to the sagittal plane
What is "crossing the midline?"
Name three cylindrical structures that travel through the inferior thoracic inlet
Caval opening (T8) – for the inferior vena cava
Esophageal hiatus (T10) – for the esophagus & vagal nerves
Aortic hiatus (T12) – for the aorta
The relationship between thoracic volume and intrapulmonary pressure is proportional or inverse, and why?
What is inverse? As volume increases (air rushes in), pressure drops, which helps us pull air in from the outside. Air wants to move from high pressure places to low pressure ones.
The respiratory diaphragm has direct interaction with which 8 muscular structures and indirect interaction with 2 fascial aponeuroses. Name 6 and 1.
QL
Psoas major/minor
Transverse abdominis
Rectus abdominis
Internal Obliques
External Obliques
External Intercostals
Internal Intercostals
Bonus: Thoracolumbar / abdominal aponeuroses
The respiratory diaphragm has this particular property which assists with core support and spinal stability
What is intra-abdominal pressure?